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Articles 31 - 60 of 404
Full-Text Articles in Genetics and Genomics
Phylogeny And Population Genetic Analyses Reveals Cryptic Speciation In The Bombus Fervidus Species Complex (Hymenoptera: Apidae), Jonathan B. Koch, Juanita Rodriguez, James P. Pitts, James P. Strange
Phylogeny And Population Genetic Analyses Reveals Cryptic Speciation In The Bombus Fervidus Species Complex (Hymenoptera: Apidae), Jonathan B. Koch, Juanita Rodriguez, James P. Pitts, James P. Strange
Ecology Center Publications
Bumble bees (Bombus Latrielle) are significant pollinators of flowering plants due to their large body size, abundant setae, and generalist foraging strategies. However, shared setal coloration patterns among closely and distantly related bumble bee species makes identification notoriously difficult. The advent of molecular genetic techniques has increased our understanding of bumble bee evolution and taxonomy, and enables effective conservation policy and management. Individuals belonging to the North American Bombus fervidus species-complex (SC) are homogenous in body structure but exhibit significant body color phenotype variation across their geographic distribution. Given the uncertainty of the genealogical boundaries within the SC, some …
Military-Related Exposures, Social Determinants Of Health, And Dysbiosis: The United States-Veteran Microbiome Project (Us-Vmp), Lisa A. Brenner, Andrew J. Hoisington, Kelly A. Stearns-Yoder, Christopher E. Stamper, Jared A. Heinze, Teodor T. Postolache, Daniel A. Hadidi, Claire A. Hoffmire, Maggie A. Stanislawski
Military-Related Exposures, Social Determinants Of Health, And Dysbiosis: The United States-Veteran Microbiome Project (Us-Vmp), Lisa A. Brenner, Andrew J. Hoisington, Kelly A. Stearns-Yoder, Christopher E. Stamper, Jared A. Heinze, Teodor T. Postolache, Daniel A. Hadidi, Claire A. Hoffmire, Maggie A. Stanislawski
Faculty Publications
Significant effort has been put forth to increase understanding regarding the role of the human microbiome in health- and disease-related processes. In turn, the United States (US) Veteran Microbiome Project (US-VMP) was conceptualized as a means by which to serially collect microbiome and health-related data from those seeking care within the Veterans Health Administration (VHA). In this manuscript, exposures related to military experiences, as well as conditions and health-related factors among patients seen in VHA clinical settings are discussed in relation to common psychological and physical outcomes. Upon enrollment in the study, Veterans complete psychometrically sound (i.e., reliable and valid) …
Improved Reference Genome For The Domestic Horse Increases Assembly Contiguity And Composition, Theodore S. Kalbfleisch, Edward S. Rice, Michael S. Depriest Jr., Brian P. Walenz, Matthew S. Hestand, Joris R. Vermeesch, Brendan L. O'Connell, Ian T. Fiddes, Alisa O. Vershinina, Nedda F. Saremi, Jessica L. Petersen, Carrie J. Finno, Rebecca R. Bellone, Molly E Mccue, Samantha A. Brooks, Ernest Bailey, Ludovic Orlando, Richard E. Green, Donald C. Miller, Douglas F. Antczak, James N. Macleod
Improved Reference Genome For The Domestic Horse Increases Assembly Contiguity And Composition, Theodore S. Kalbfleisch, Edward S. Rice, Michael S. Depriest Jr., Brian P. Walenz, Matthew S. Hestand, Joris R. Vermeesch, Brendan L. O'Connell, Ian T. Fiddes, Alisa O. Vershinina, Nedda F. Saremi, Jessica L. Petersen, Carrie J. Finno, Rebecca R. Bellone, Molly E Mccue, Samantha A. Brooks, Ernest Bailey, Ludovic Orlando, Richard E. Green, Donald C. Miller, Douglas F. Antczak, James N. Macleod
Maxwell H. Gluck Equine Research Center Faculty Publications
Recent advances in genomic sequencing technology and computational assembly methods have allowed scientists to improve reference genome assemblies in terms of contiguity and composition. EquCab2, a reference genome for the domestic horse, was released in 2007. Although of equal or better quality compared to other first-generation Sanger assemblies, it had many of the shortcomings common to them. In 2014, the equine genomics research community began a project to improve the reference sequence for the horse, building upon the solid foundation of EquCab2 and incorporating new short-read data, long-read data, and proximity ligation data. Here, we present EquCab3. The count of …
Thinking Computationally About Forensics: Anthropological Perspectives On Advancements In Technologies, Data, And Algorithms, Bridget F.B. Algee-Hewitt, Jieun Kim, Cris E. Hughes
Thinking Computationally About Forensics: Anthropological Perspectives On Advancements In Technologies, Data, And Algorithms, Bridget F.B. Algee-Hewitt, Jieun Kim, Cris E. Hughes
Human Biology Open Access Pre-Prints
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New Approaches To Juvenile Age Estimation In Forensics: Application Of Transition Analysis Via The Shackelford Et Al. Method To A Diverse Modern Subadult Sample, Kelly R. Kamnikar, Nicholas P. Herrmann, Amber M. Plemons
New Approaches To Juvenile Age Estimation In Forensics: Application Of Transition Analysis Via The Shackelford Et Al. Method To A Diverse Modern Subadult Sample, Kelly R. Kamnikar, Nicholas P. Herrmann, Amber M. Plemons
Human Biology Open Access Pre-Prints
Dental development is one of the most widely utilized and accurate methods available for estimating age in subadult skeletal remains. The timing of tooth growth and development is regulated by genetics and less affected by external factors, allowing reliable estimates of chronological age. Traditional methodology focuses on comparing tooth developmental scores to corresponding age charts. Using the Moorrees, Fanning, and Hunt (MFH) developmental scores, Shackelford and colleagues embed the dental development method in a statistical framework based on transition analysis. They generated numerical parameters underlining each “stage” and age-at-death distribution and applied them to fossil hominins and Neanderthals with limited …
Who Needs Data? I’Ve Got Experience!, Dawnie Wolfe Steadman
Who Needs Data? I’Ve Got Experience!, Dawnie Wolfe Steadman
Human Biology Open Access Pre-Prints
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Waardenburg Syndrome And Left Persistent Superior Vena Cava, Driss Raissi, Alexander Christie, Kimberly Applegate
Waardenburg Syndrome And Left Persistent Superior Vena Cava, Driss Raissi, Alexander Christie, Kimberly Applegate
Radiology Faculty Publications
Waardenburg syndrome (WS) is a rare genetic disorder secondary to neural crest cell developmental abnormalities. It is predominantly described as an auditory-pigmentary syndrome with diverse patient presentation, typically involving congenital sensorineural hearing loss and pigmentation abnormalities of the skin, hair, and iris. Other developmental abnormalities that may be associated with this syndrome are Hirschsprung's disease and a myriad of cardiovascular congenital defects. We present a case of a young girl with WS who found to have a persistent left superior vena cava (PLSVC) draining into the coronary sinus. The prevalence of PLSVC is increased in patients with chromosomal and genetic …
Hnrnpa2 Mediated Acetylation Reduces Telomere Length In Response To Mitochondrial Dysfunction, Manti Guha, Satish Srinivasan, F. Bradley Johnson, Gordon Ruthel, Kip Guja, Miguel Garcia-Diaz, Brett A. Kaufman, M. Rebecca Glineburg, Jikang Fang, Hiroshi Nakagawa, Jeelan Basha, Tapas Kundu, Narayan G. Avadhani
Hnrnpa2 Mediated Acetylation Reduces Telomere Length In Response To Mitochondrial Dysfunction, Manti Guha, Satish Srinivasan, F. Bradley Johnson, Gordon Ruthel, Kip Guja, Miguel Garcia-Diaz, Brett A. Kaufman, M. Rebecca Glineburg, Jikang Fang, Hiroshi Nakagawa, Jeelan Basha, Tapas Kundu, Narayan G. Avadhani
Biology, Chemistry, and Environmental Sciences Faculty Articles and Research
Telomeres protect against chromosomal damage. Accelerated telomere loss has been associated with premature aging syndromes such as Werner’s syndrome and Dyskeratosis Congenita, while, progressive telomere loss activates a DNA damage response leading to chromosomal instability, typically observed in cancer cells and senescent cells. Therefore, identifying mechanisms of telomere length maintenance is critical for understanding human pathologies. In this paper we demonstrate that mitochondrial dysfunction plays a causal role in telomere shortening. Furthermore, hnRNPA2, a mitochondrial stress responsive lysine acetyltransferase (KAT) acetylates telomere histone H4at lysine 8 of (H4K8) and this acetylation is associated with telomere attrition. Cells containing dysfunctional mitochondria …
A Common Genetic Mechanism Underlies Morphological Diversity In Fruits And Other Plant Organs, Shan Wu, Biyao Zhang, Neda Keyhaninejad, Gustavo R. Rodríguez, Hyun Jung Kim, Manohar Chakrabarti, Eudald Illa-Berenguer, Nathan K. Taitano, M. J. Gonzalo, Aurora Díaz, Yupeng Pan, Courtney P. Leisner, Dennis Halterman, C. Robin Buell, Yiqun Weng, Shelley H. Jansky, Herman Van Eck, Johan Willemsen, Antonio J Monforte, Tea Meulia, Esther Van Der Knaap
A Common Genetic Mechanism Underlies Morphological Diversity In Fruits And Other Plant Organs, Shan Wu, Biyao Zhang, Neda Keyhaninejad, Gustavo R. Rodríguez, Hyun Jung Kim, Manohar Chakrabarti, Eudald Illa-Berenguer, Nathan K. Taitano, M. J. Gonzalo, Aurora Díaz, Yupeng Pan, Courtney P. Leisner, Dennis Halterman, C. Robin Buell, Yiqun Weng, Shelley H. Jansky, Herman Van Eck, Johan Willemsen, Antonio J Monforte, Tea Meulia, Esther Van Der Knaap
Plant and Soil Sciences Faculty Publications
Shapes of edible plant organs vary dramatically among and within crop plants. To explain and ultimately employ this variation towards crop improvement, we determined the genetic, molecular and cellular bases of fruit shape diversity in tomato. Through positional cloning, protein interaction studies, and genome editing, we report that OVATE Family Proteins and TONNEAU1 Recruiting Motif proteins regulate cell division patterns in ovary development to alter final fruit shape. The physical interactions between the members of these two families are necessary for dynamic relocalization of the protein complexes to different cellular compartments when expressed in tobacco leaf cells. Together with data …
Factors Affecting Trailer Thermal Environment Experienced By Market Pigs Transported In The Us, Y Xiong, Richard S. Gates, Angela R. Green-Miller
Factors Affecting Trailer Thermal Environment Experienced By Market Pigs Transported In The Us, Y Xiong, Richard S. Gates, Angela R. Green-Miller
Department of Animal Science: Faculty Publications
Extreme weather conditions challenge pig thermoregulation during transport and are addressed by the National Pork Board (NPB) Transport Quality Assurance® (TQA) program that provides guidelines for trailer boarding, bedding, and misting. These guidelines are widely applied, yet very little is known about the microenvironment within the trailer. In this study, TQA guidelines (V4) were evaluated via extensive thermal environment measurements during transport in order to evaluate spatial variability and implications on ventilation pattern. Effects of trailer management strategies including bedding, boarding, and misting were examined and the trailer was monitored for interior temperature rise and THI responses within six separate …
Embryonic Origin And Genetic Basis Of Cave Associated Phenotypes In The Isopod Crustacean Asellus Aquaticus., Hafasa Mojaddidi, Franco Fernandez, Priscilla A. Erickson, Meredith E. Protas
Embryonic Origin And Genetic Basis Of Cave Associated Phenotypes In The Isopod Crustacean Asellus Aquaticus., Hafasa Mojaddidi, Franco Fernandez, Priscilla A. Erickson, Meredith E. Protas
Natural Sciences and Mathematics | Faculty Scholarship
Characteristics common to animals living in subterranean environments include the reduction or absence of eyes, lessened pigmentation and enhanced sensory systems. How these characteristics have evolved is poorly understood for the majority of cave dwelling species. In order to understand the evolution of these changes, this study uses an invertebrate model system, the freshwater isopod crustacean, Asellus aquaticus, to examine whether adult differences between cave and surface dwelling individuals first appear during embryonic development. We hypothesized that antennal elaboration, as well as eye reduction and pigment loss, would be apparent during embryonic development. We found that differences in pigmentation, eye …
Molecular Structure Of Promoter-Bound Yeast Tfiid., Olga Kolesnikova, Adam Ben-Shem, Jie Luo, Jeff Ranish, Patrick Schultz, Gabor Papai
Molecular Structure Of Promoter-Bound Yeast Tfiid., Olga Kolesnikova, Adam Ben-Shem, Jie Luo, Jeff Ranish, Patrick Schultz, Gabor Papai
Articles, Abstracts, and Reports
Transcription preinitiation complex assembly on the promoters of protein encoding genes is nucleated in vivo by TFIID composed of the TATA-box Binding Protein (TBP) and 13 TBP-associate factors (Tafs) providing regulatory and chromatin binding functions. Here we present the cryo-electron microscopy structure of promoter-bound yeast TFIID at a resolution better than 5 Å, except for a flexible domain. We position the crystal structures of several subunits and, in combination with cross-linking studies, describe the quaternary organization of TFIID. The compact tri lobed architecture is stabilized by a topologically closed Taf5-Taf6 tetramer. We confirm the unique subunit stoichiometry prevailing in TFIID …
South American Leaf-Cutter Bees (Genus Megachile) Of The Subgenera Rhyssomegachile And Zonomegachile, With Two New Subgenera (Hymenoptera: Megachilidae), Víctor H. González, Terry Griswold, Michael S. Engel
South American Leaf-Cutter Bees (Genus Megachile) Of The Subgenera Rhyssomegachile And Zonomegachile, With Two New Subgenera (Hymenoptera: Megachilidae), Víctor H. González, Terry Griswold, Michael S. Engel
All PIRU Publications
Leaf-cutter bees (genus Megachile Latreille) are among the most common and diverse group of bees. However, the identity and taxonomic placement of many species are problematic and species identification is often difficult. Some species are known only from a single specimen or from one of the sexes, and identification keys are not available for many groups. We address these taxonomic issues for the subgenera Rhyssomegachile Mitchell and Zonomegachile Mitchell, two poorly known South American lineages of leaf-cutter bees. We provide comparative diagnoses, redescriptions, illustrated identification keys, new geographical records, and designate needed neotypes for Megachile cara Mitchell, M. gigas Schrottky, …
The Impact Of Selective Genotyping On The Response To Selection Using Single-Step Genomic Best Linear Unbiased Prediction, Jeremy T. Howard, Thomas A. Rathje, Caitlyn E. Bruns, Danielle F. Wilson-Wells, Stephen D. Kachman, Matthew L. Spangler
The Impact Of Selective Genotyping On The Response To Selection Using Single-Step Genomic Best Linear Unbiased Prediction, Jeremy T. Howard, Thomas A. Rathje, Caitlyn E. Bruns, Danielle F. Wilson-Wells, Stephen D. Kachman, Matthew L. Spangler
Department of Animal Science: Faculty Publications
Across the majority livestock species, routinely collected genomic and pedigree information has been incorporated into evaluations using single-step methods. As a result, strategies that reduce genotyping costs without reducing the response to selection are important as they could have substantial economic impacts on breeding programs. Therefore, the objective of the current study was to investigate the impact of selectively genotyping selection candidates on the selection response using simulation. Populations were simulated to mimic the genome and population structure of a swine and cattle population undergoing selection on an index comprised of the estimated breeding values (EBV) for 2 genetically correlated …
Genetic Variants In The Sirt6 Transcriptional Regulatory Region Affect Gene Activity And Carcass Quality Traits In Indigenous Chinese Beef Cattle (Bos Taurus), Lin-Sheng Gui, Sayed Haidar Abbas Raza, Matthew Garcia, Yong-Gang Sun, Irfan Ullah, Yin-Cang Han
Genetic Variants In The Sirt6 Transcriptional Regulatory Region Affect Gene Activity And Carcass Quality Traits In Indigenous Chinese Beef Cattle (Bos Taurus), Lin-Sheng Gui, Sayed Haidar Abbas Raza, Matthew Garcia, Yong-Gang Sun, Irfan Ullah, Yin-Cang Han
Animal, Dairy, and Veterinary Science Faculty Publications
Background: The aim of this study was to analyze potential influences of polymorphisms within the regulatory region of the bovine SIRT6 gene on carcass quality traits. Expression analyses suggested that SIRT6 gene is predominately expressed in kidney, compared with other tissues. In 535 indigenous Chinese beef cattle, two novel single nucleotide polymorphisms (SNPs) were identified within the promoter region of the SIRT6 gene.
Results: Association analysis indicated that G allele of the c.-1100 A > G had a positive effect on fat deposition, and the Hap4/4 diplotype had more favourable results than other dipoltypes with respect to the evaluation of carcass …
Kaposi’S Sarcoma-Associated Herpesvirus Seropositivity Is Associated With Type 2 Diabetes Mellitus: A Case–Control Study In Xinjiang, China, Meng Cui, Qiwen Fang, Jun Zheng, Zhanjun Shu, Yin Chen, Yage Fan, Juan Zhao, Charles Wood, Tiejun Zhang, Yan Zeng
Kaposi’S Sarcoma-Associated Herpesvirus Seropositivity Is Associated With Type 2 Diabetes Mellitus: A Case–Control Study In Xinjiang, China, Meng Cui, Qiwen Fang, Jun Zheng, Zhanjun Shu, Yin Chen, Yage Fan, Juan Zhao, Charles Wood, Tiejun Zhang, Yan Zeng
Nebraska Center for Virology: Faculty Publications
Objective: To assess the potential relationship between Kaposi’s sarcoma-associated herpesvirus (KSHV) infection and type 2 diabetes mellitus (DM-2) in Xinjiang, China.
Methods: A case–control study of consecutively included DM-2 patients and normal controls was conducted among the Uygur and Han populations in Xinjiang Uygur Autonomous Region, China. Blood samples were collected and KSHV seroprevalence, antibody titers, and viral load were investigated. Logistic regression analysis and multiple linear regression analysis were applied to explore determinants of the main outcome measures.
Results: A total of 324 patients with DM-2 and 376 normal controls were included. The seroprevalence of KSHV was 49.1% (95% …
A Novel Tetracycline-Responsive Transgenic Mouse Strain For Skeletal Muscle-Specific Gene Expression, Masahiro Iwata, Davis A. Englund, Yuan Wen, Cory M. Dungan, Kevin A. Murach, Ivan J. Vechetti Jr., Christopher B. Mobley, Charlotte A. Peterson, John J. Mccarthy
A Novel Tetracycline-Responsive Transgenic Mouse Strain For Skeletal Muscle-Specific Gene Expression, Masahiro Iwata, Davis A. Englund, Yuan Wen, Cory M. Dungan, Kevin A. Murach, Ivan J. Vechetti Jr., Christopher B. Mobley, Charlotte A. Peterson, John J. Mccarthy
Center for Muscle Biology Faculty Publications
Background: The tetracycline-responsive system (Tet-ON/OFF) has proven to be a valuable tool for manipulating gene expression in an inducible, temporal, and tissue-specific manner. The purpose of this study was to create and characterize a new transgenic mouse strain utilizing the human skeletal muscle α-actin (HSA) promoter to drive skeletal muscle-specific expression of the reverse tetracycline transactivator (rtTA) gene which we have designated as the HSA-rtTA mouse.
Methods: To confirm the HSA-rtTA mouse was capable of driving skeletal muscle-specific expression, we crossed the HSA-rtTA mouse with the tetracycline-responsive histone H2B-green fluorescent protein (H2B-GFP) transgenic mouse in order to label myonuclei.
Results: …
The Mitochondrial Genome Of The Endemic Brazilian Paradoxial Frog Pseudis Tocantins (Hylidae), Kaleb Pretto Gatto, Jeramiah J. Smith, Luciana Bolsoni Lourenço
The Mitochondrial Genome Of The Endemic Brazilian Paradoxial Frog Pseudis Tocantins (Hylidae), Kaleb Pretto Gatto, Jeramiah J. Smith, Luciana Bolsoni Lourenço
Biology Faculty Publications
In this work, we present for the first time the mitochondrial genome of a paradoxical frog (Pseudis tocantins). This genome is 15.56 kb, excluding the control region, and is similar in gene content to other hylid mitogenomes. Maximum likelihood analysis, using the mitogenomes of several anurans, indicated P. tocantins as closely related to other hylid species.
Integrating Multiple Genetic Detection Methods To Estimate Population Density Of Social And Territorial Carnivores, Sean M. Murphy, Ben C. Augustine, Jennifer R. Adams, Lisette P. Waits, John J. Cox
Integrating Multiple Genetic Detection Methods To Estimate Population Density Of Social And Territorial Carnivores, Sean M. Murphy, Ben C. Augustine, Jennifer R. Adams, Lisette P. Waits, John J. Cox
Forestry and Natural Resources Faculty Publications
Spatial capture–recapture models can produce unbiased estimates of population density, but sparse detection data often plague studies of social and territorial carnivores. Integrating multiple types of detection data can improve estimation of the spatial scale parameter (σ), activity center locations, and density. Noninvasive genetic sampling is effective for detecting carnivores, but social structure and territoriality could cause differential detectability among population cohorts for different detection methods. Using three observation models, we evaluated the integration of genetic detection data from noninvasive hair and scat sampling of the social and territorial coyote (Canis latrans). Although precision of estimated density was …
Repeat Elements Organise 3d Genome Structure And Mediate Transcription In The Filamentous Fungus Epichloë Festucae, David J. Winter, Austen R. D. Ganley, Carolyn A. Young, Ivan Liachko, Christopher L. Schardl, Pierre-Yves Dupont, Daniel Berry, Arvina Ram, Barry Scott, Murray P. Cox
Repeat Elements Organise 3d Genome Structure And Mediate Transcription In The Filamentous Fungus Epichloë Festucae, David J. Winter, Austen R. D. Ganley, Carolyn A. Young, Ivan Liachko, Christopher L. Schardl, Pierre-Yves Dupont, Daniel Berry, Arvina Ram, Barry Scott, Murray P. Cox
Plant Pathology Faculty Publications
Structural features of genomes, including the three-dimensional arrangement of DNA in the nucleus, are increasingly seen as key contributors to the regulation of gene expression. However, studies on how genome structure and nuclear organisation influence transcription have so far been limited to a handful of model species. This narrow focus limits our ability to draw general conclusions about the ways in which three-dimensional structures are encoded, and to integrate information from three-dimensional data to address a broader gamut of biological questions. Here, we generate a complete and gapless genome sequence for the filamentous fungus, Epichloë festucae. We use Hi-C …
Identification And Heterologous Reconstitution Of A 5-Alk(En)Ylresorcinol Synthase From Endophytic Fungus Shiraia Sp. Slf14, Huiwen Yan, Lei Sun, Jinge Huang, Yixing Qiu, Fuchao Xu, Riming Yan, Du Zhu, Wei Wang, Jixun Zhan
Identification And Heterologous Reconstitution Of A 5-Alk(En)Ylresorcinol Synthase From Endophytic Fungus Shiraia Sp. Slf14, Huiwen Yan, Lei Sun, Jinge Huang, Yixing Qiu, Fuchao Xu, Riming Yan, Du Zhu, Wei Wang, Jixun Zhan
Biological Engineering Faculty Publications
A new type III polyketide synthase gene (Ssars) was discovered from the genome of Shiraia sp. Slf14, an endophytic fungal strain from Huperzia serrata. The intron-free gene was cloned from the cDNA and ligated to two expression vectors pET28a and YEpADH2p-URA3 for expression in Escherichia coli BL21(DE3) and Saccharomyces cerevisiae BJ5464, respectively. SsARS was efficiently expressed in E. coli BL21(DE3), leading to the synthesis of a series of polyketide products. Six major products were isolated from the engineered E. coli and characterized as 1,3-dihydroxyphenyl-5-undecane, 1,3-dihydroxyphenyl-5-cis-6'-tridecene,1,3-dihydroxyphenyl-5-tridecane, 1,3-dihydroxyphenyl-5-cis-8'-pentadecene, 1,3-dihydroxyphenyl-5-pentadecane and 1,3-dihydroxyphenyl-5-cis-10'-heptadecene, respectively, …
Hominoid Intraspecific Cranial Variation Mirrors Neutral Genetic Diversity, Julia M. Zichello, Karen L. Baab, Kieran P. Mcnulty, Christopher J. Raxworthy, Michael E. Steiper
Hominoid Intraspecific Cranial Variation Mirrors Neutral Genetic Diversity, Julia M. Zichello, Karen L. Baab, Kieran P. Mcnulty, Christopher J. Raxworthy, Michael E. Steiper
Publications and Research
Natural selection, developmental constraint, and plasticity have all been invoked as explanations for intraspecific cranial variation in humans and apes. However, global patterns of human cranial variation are congruent with patterns of genetic variation, demonstrating that population history has influenced cranial variation in humans. Here we show that this finding is not unique to Homo sapiens but is also broadly evident across extant ape species. Specifically, taxa that exhibit greater intraspecific cranial shape variation also exhibit greater genetic diversity at neutral autosomal loci. Thus, cranial shape variation within hominoid taxa reflects the population history of each species. Our results suggest …
Gene Gangs Of The Chloroviruses: Conserved Clusters Of Collinear Monocistronic Genes, Phillip Seitzer, Adrien Jeanniard, Fangrui Ma, James L. Van Etten, Marc T. Facciotti, David D. Dunigan
Gene Gangs Of The Chloroviruses: Conserved Clusters Of Collinear Monocistronic Genes, Phillip Seitzer, Adrien Jeanniard, Fangrui Ma, James L. Van Etten, Marc T. Facciotti, David D. Dunigan
Nebraska Center for Virology: Faculty Publications
Chloroviruses (family Phycodnaviridae) are dsDNA viruses found throughout the world’s inland waters. The open reading frames in the genomes of 41 sequenced chloroviruses (330 + 40 kbp each) representing three virus types were analyzed for evidence of evolutionarily conserved local genomic “contexts”, the organization of biological information into units of a scale larger than a gene. Despite a general loss of synteny between virus types, we informatically detected a highly conserved genomic context defined by groups of three or more genes that we have termed “gene gangs”. Unlike previously described local genomic contexts, the definition of gene gangs requires only …
Seqothello: Querying Rna-Seq Experiments At Scale, Ye Yu, Jinpeng Liu, Xinan Liu, Yi Zhang, Eamonn Magner, Erik Lehnert, Chen Qian, Jinze Liu
Seqothello: Querying Rna-Seq Experiments At Scale, Ye Yu, Jinpeng Liu, Xinan Liu, Yi Zhang, Eamonn Magner, Erik Lehnert, Chen Qian, Jinze Liu
Computer Science Faculty Publications
We present SeqOthello, an ultra-fast and memory-efficient indexing structure to support arbitrary sequence query against large collections of RNA-seq experiments. It takes SeqOthello only 5 min and 19.1 GB memory to conduct a global survey of 11,658 fusion events against 10,113 TCGA Pan-Cancer RNA-seq datasets. The query recovers 92.7% of tier-1 fusions curated by TCGA Fusion Gene Database and reveals 270 novel occurrences, all of which are present as tumor-specific. By providing a reference-free, alignment-free, and parameter-free sequence search system, SeqOthello will enable large-scale integrative studies using sequence-level data, an undertaking not previously practicable for many individual labs.
Antibody Epitope Specificity For Dsdna Phosphate Backbone Is An Intrinsic Property Of The Heavy Chain Variable Germline Gene Segment Used, Tatjana Srdic-Rajic, Heinz Kohler, Vladimir Jurisic, Radmila Metlas
Antibody Epitope Specificity For Dsdna Phosphate Backbone Is An Intrinsic Property Of The Heavy Chain Variable Germline Gene Segment Used, Tatjana Srdic-Rajic, Heinz Kohler, Vladimir Jurisic, Radmila Metlas
Microbiology, Immunology, and Molecular Genetics Faculty Publications
Analysis of protein sequences by the informational spectrum method (ISM) enables characterization of their specificity according to encoded information represented with defined frequency (F). Our previous data showed that F(0.367) is characteristic for variable heavy chain (VH) domains (a combination of variable (V), diversity (D) and joining (J) gene segments) of the anti-phosphocholine (PC) T15 antibodies and mostly dependent on the CDR2 region, a site for PC phosphate group binding. Because the T15 dsDNA-reactive U4 mutant also encodes F(0.367), we hypothesized that the same frequency may also be characteristic for anti-DNA antibodies. Data obtained from an analysis of 60 spontaneously …
Re-Thinking Alzheimer's Disease Therapeutic Targets Using Gene-Based Tests, Man Ki Kwok, Shi Lin Lin, C Mary Schooling
Re-Thinking Alzheimer's Disease Therapeutic Targets Using Gene-Based Tests, Man Ki Kwok, Shi Lin Lin, C Mary Schooling
Publications and Research
Background: Alzheimer's disease (AD) is a devastating condition with no known effective drug treatments. Existing drugs only alleviate symptoms. Given repeated expensive drug failures, we assessed systematically whether approved and investigational AD drugs are targeting products of genes strongly associated with AD and whether these genes are targeted by existing drugs for other indications which could be re-purposed.
Methods: We identified genes strongly associated with late-onset AD fromthe loci of genetic variants associated with AD at genome-wide-significance and from a gene-based test applied to the most extensively genotyped late-onset AD case (n=17,008)-control (n=37,154) study, the International Genomics of Alzheimer's Project. …
Genotype Fingerprints Enable Fast And Private Comparison Of Genetic Testing Results For Research And Direct-To-Consumer Applications., Max Robinson, Gustavo Glusman
Genotype Fingerprints Enable Fast And Private Comparison Of Genetic Testing Results For Research And Direct-To-Consumer Applications., Max Robinson, Gustavo Glusman
Articles, Abstracts, and Reports
Genetic testing has expanded out of the research laboratory into medical practice and the direct-to-consumer market. Rapid analysis of the resulting genotype data now has a significant impact. We present a method for summarizing personal genotypes as 'genotype fingerprints' that meets these needs. Genotype fingerprints can be derived from any single nucleotide polymorphism-based assay, and remain comparable as chip designs evolve to higher marker densities. We demonstrate that these fingerprints support distinguishing types of relationships among closely related individuals and closely related individuals from individuals from the same background population, as well as high-throughput identification of identical genotypes, individuals in …
Complete Genome Sequences Of 18 Paenibacillus Larvae Phages From The Western United States, Bryan D. Merrill, Christopher P. Fajardo, Jared A. Hilton, Ashley M. Payne, Andy T. Ward, Jamison K. Walker, Aziza Dhalai, Cameron Imahara, James Mangohig, Josh Monk, Cristian Pascacio, Padmani Rai, Alicia Salisbury, Kathie Velez, Travis J. Bloomfield, Brett Buhler, Steven G. Duncan, David A. Fuhriman, Josil George, Kiel Graves, Karli Graves, Hunter L. Hill, Michelle Kim, Bradley K. Knabe, Devin B. Ririe, Spencer L. Rogers, Casey Stamereilers, Michael B. Stephenson, Brittian K. Usher, Colton S. Ward, Jacob M. Withers
Complete Genome Sequences Of 18 Paenibacillus Larvae Phages From The Western United States, Bryan D. Merrill, Christopher P. Fajardo, Jared A. Hilton, Ashley M. Payne, Andy T. Ward, Jamison K. Walker, Aziza Dhalai, Cameron Imahara, James Mangohig, Josh Monk, Cristian Pascacio, Padmani Rai, Alicia Salisbury, Kathie Velez, Travis J. Bloomfield, Brett Buhler, Steven G. Duncan, David A. Fuhriman, Josil George, Kiel Graves, Karli Graves, Hunter L. Hill, Michelle Kim, Bradley K. Knabe, Devin B. Ririe, Spencer L. Rogers, Casey Stamereilers, Michael B. Stephenson, Brittian K. Usher, Colton S. Ward, Jacob M. Withers
Life Sciences Faculty Research
We present here the complete genomes of 18 phages that infect Paenibacillus larvae, the causative agent of American foulbrood in honeybees. The phages were isolated between 2014 and 2016 as part of an undergraduate phage discovery course at Brigham Young University. The phages were isolated primarily from bee debris and lysogens.
Identification Of Target Genes For Rnai-Mediated Control Of The Twospotted Spider Mite, June-Sun Yoon, Dipak K. Sahoo, Indu B. Maiti, Subba Reddy Palli
Identification Of Target Genes For Rnai-Mediated Control Of The Twospotted Spider Mite, June-Sun Yoon, Dipak K. Sahoo, Indu B. Maiti, Subba Reddy Palli
Entomology Faculty Publications
RNA interference (RNAi) is being developed for the management of pests that destroy crops. The twospotted Spider Mite (TSSM), Tetranychus urticae is a worldwide pest due to its unique physiological and behavioral characteristics including extraordinary ability to detoxify a wide range of pesticides and feed on many host plants. In this study, we conducted experiments to identify target genes that could be used for the development of RNAi-based methods to control TSSM. Leaf disc feeding assays revealed that knockdown in the expression genes coding for proteins involved in the biosynthesis and action of juvenile hormone (JH) and action of ecdysteroids …
8th Annual Postdoctoral Science Symposium, University Of Texas Md Anderson Cancer Center Postdoctoral Association
8th Annual Postdoctoral Science Symposium, University Of Texas Md Anderson Cancer Center Postdoctoral Association
Annual Postdoctoral Science Symposium Abstracts
The mission of the Annual Postdoctoral Science Symposium (APSS) is to provide a platform for talented postdoctoral fellows throughout the Texas Medical Center to present their work to a wider audience. The MD Anderson Postdoctoral Association convened its inaugural Annual Postdoctoral Science Symposium (APSS) on August 4, 2011.
The APSS provides a professional venue for postdoctoral scientists to develop, clarify, and refine their research as a result of formal reviews and critiques of faculty and other postdoctoral scientists. Additionally, attendees discuss current research on a broad range of subjects while promoting academic interactions and enrichment and developing new collaborations.