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Articles 1 - 15 of 15
Full-Text Articles in Life Sciences
Ecological And Morphological Differentiation Among Coi Haplotype Groups In The Plant Parasitic Nematode Species Mesocriconema Xenoplax, Julianne N. Matczyszyn, Timothy Harris, Kirsten S. Powers, Sydney E. Everhart, Thomas O. Powers
Ecological And Morphological Differentiation Among Coi Haplotype Groups In The Plant Parasitic Nematode Species Mesocriconema Xenoplax, Julianne N. Matczyszyn, Timothy Harris, Kirsten S. Powers, Sydney E. Everhart, Thomas O. Powers
Department of Plant Pathology: Faculty Publications
DNA barcoding with the mitochondrial COI gene reveals distinct haplotype subgroups within the monophyletic and parthenogenetic nematode species, Mesocriconema xenoplax. Biological attributes of these haplotype groups (HG) have not been explored. An analysis of M. xenoplax from 40 North American sites representing both native plant communities and agroecosystems was conducted to identify possible subgroup associations with ecological, physiological, or geographic factors. A dataset of 132 M. xenoplax specimens was used to generate sequences of a 712 bp region of the cytochrome oxidase subunit I gene. Maximum-likelihood and Bayesian phylogenies recognized seven COI HG (≥99/0.99 posterior probability/bootstrap value). Species delimitation …
Ecological And Morphological Differentiation Among Coi Haplotype Groups In The Plant Parasitic Nematode Species Mesocriconema Xenoplax, Julianne N. Matczyszyn, Timothy Harris, Kirsten S. Powers, Sydney E. Everhart, Tom Powers
Ecological And Morphological Differentiation Among Coi Haplotype Groups In The Plant Parasitic Nematode Species Mesocriconema Xenoplax, Julianne N. Matczyszyn, Timothy Harris, Kirsten S. Powers, Sydney E. Everhart, Tom Powers
Department of Plant Pathology: Faculty Publications
DNA barcoding with the mitochondrial COI gene reveals distinct haplotype subgroups within the monophyletic and parthenogenetic nematode species, Mesocriconema xenoplax. Biological attributes of these haplotype groups (HG) have not been explored. An analysis of M. xenoplax from 40 North American sites representing both native plant communities and agroecosystems was conducted to identify possible subgroup associations with ecological, physiological, or geographic factors. A dataset of 132 M. xenoplax specimens was used to generate sequences of a 712 bp region of the cytochrome oxidase subunit I gene. Maximum-likelihood and Bayesian phylogenies recognized seven COI HG (≥99/0.99 posterior probability/bootstrap value). Species …
Ecology And Diversity Of Boletes Of The Southeastern United States, Arian Farid
Ecology And Diversity Of Boletes Of The Southeastern United States, Arian Farid
USF Tampa Graduate Theses and Dissertations
The boletes are conspicuous stipito-pileate macrofungi that are generally defined by their tubulose hymenophores. Molecular phylogenetic analyses have informed extensive taxonomic revisions across the boletes. Despite this, the boletes in the southeastern USA have been largely absent from the literature. This dissertation seeks to understand the microbiome inhabiting the tuberculate ectomycorrhizae of the bolete Hemileccinum rubropunctum, and addresses taxonomic revisions of boletes found in the Boletaceae and Suillaceae. The introduction provides a brief background on boletes, as well as our understanding of tuberculate ectomycorrhizae. The second chapter seeks to understand the composition of the microbiome tuberculate ectomycorrhizae of H. rubropunctum …
Genetic Structuring And Community Assembly In Neotropical Birds, Oscar Johnson
Genetic Structuring And Community Assembly In Neotropical Birds, Oscar Johnson
LSU Doctoral Dissertations
The factors that influence how species form is of fundamental interest to biology. Under the framework of the speciation cycle, the process begins by population subdivision creating structured populations that then diverge until two new species form. Following speciation, however, continued divergence is necessary for these new species to be able to coexist without adverse interactions, known as the transition to secondary sympatry. At this point the speciation cycle is complete and the process can begin anew. Many of the factors influencing these processes remain poorly understood. Here, I explore the factors that influence speciation and community assembly in Neotropical …
A Review Of The Nearctic Species Of Nematodes (Coleoptera: Eucnemidae: Macraulacinae: Nematodini) With A Description Of One New Species, Robert L. Otto
A Review Of The Nearctic Species Of Nematodes (Coleoptera: Eucnemidae: Macraulacinae: Nematodini) With A Description Of One New Species, Robert L. Otto
Insecta Mundi
The Nearctic species of Nematodes Berthold (Coleoptera: Eucnemidae: Macraulacinae: Nematodini) are reviewed. Four species are redescribed. One new species, Nematodes rugosipennis Otto (Coleoptera: Eucnemidae) is described from Florida, Georgia, and Oklahoma, USA. A key to species modified from Muona (2000) is provided for all known species of Nematodes present in the Nearctic region.
While identifying false click beetles (Coleoptera: Eucnemidae) in the Florida State Collection of Arthropods, I discovered a new species of Nematodes Berthold collected in Florida. Additional specimens of the new species were identified from the Carnegie Museum of Natural History, California Department of Food and Agriculture, …
A New Species Of Coomanius Fleutiaux, 1924 (Coleoptera: Eucnemidae: Macraulacinae: Nematodini) From Southeast Asia, Robert L. Otto
A New Species Of Coomanius Fleutiaux, 1924 (Coleoptera: Eucnemidae: Macraulacinae: Nematodini) From Southeast Asia, Robert L. Otto
Insecta Mundi
A new species of false click beetle, Coomanius badius Otto (Coleoptera: Eucnemidae), is described from Sarawak, Malaysia. An identification key is provided for species of Coomanius Fleutiaux distributed in the Southeast Asian region. Images for each species are provided.
During the spring and summer of 2020, many new species were discovered during identifications of beetles loaned from BMNH and other collections. One is described here in the first of many planned papers covering these new discoveries. Additional insights within Eucnemidae from around the world are still bound to continue as new information comes to light during the course of ongoing …
Systematics Of Eastern North American Podothrombium (Parasitengona: Podothrombiidae), Kelsey Lynn Cline
Systematics Of Eastern North American Podothrombium (Parasitengona: Podothrombiidae), Kelsey Lynn Cline
Graduate Theses and Dissertations
Velvet mites of the genus Podothrombium Berlese, 1910 are found worldwide with only two described species known from North America, both occurring on the west coast. The present study describes five new species occurring in the east, from both larval and post-larval stages. Species hypotheses are supported with morphology and analysis of mitochondrial (barcoding region of COI) and nuclear genes (D2-3 expansion regions of 28S rDNA). Specimens are incorporated from the Barcode of Life Data Systems (BOLD), allowing our dataset to span most of North America. Therefore, we were able to raise the number of Podothrombium in North America from …
Taxonomy And Systematics Of Plumeria L. (Apocynaceae) In The Caribbean Islands, Nichole M. Tiernan
Taxonomy And Systematics Of Plumeria L. (Apocynaceae) In The Caribbean Islands, Nichole M. Tiernan
FIU Electronic Theses and Dissertations
Plumeria L. (Apocynaceae) is a genus of flowering trees and shrubs that are often cultivated in tropical gardens worldwide. The majority of its species occur in the Greater Antilles with many as single-island endemics. The only comprehensive revision for the genus was done by Robert E. Woodson Jr. (1937) who recognized only seven species and created a ‘Plumeria obtusa complex’ with a plethora of synonyms. The first study provides an overview of the Caribbean Island members of the genus with a focus on Plumeria filifolia Griseb., a thin-leaved species endemic to Cuba that is featured because of its incredible …
A New Vaejovis C.L. Koch From The Sierra Madre Occidental Of Durango, Mexico (Scorpiones: Vaejovidae), Jessica S. Azzinnari, Robert W. Bryson, Matthew R. Graham, Carlos Solís-Rojas, W. David Sissom
A New Vaejovis C.L. Koch From The Sierra Madre Occidental Of Durango, Mexico (Scorpiones: Vaejovidae), Jessica S. Azzinnari, Robert W. Bryson, Matthew R. Graham, Carlos Solís-Rojas, W. David Sissom
Insecta Mundi
A new montane species of Vaejovis C.L. Koch (Scorpiones: Vaejovidae) is described from the Sierra Madre Occidental of Durango, Mexico. Vaejovis baggins Azzinnari, Bryson, Graham, Solís-Rojas, and Sissom, new species, is similar to mexicanus group species in the mountain range, including V. montanus Graham and Bryson, V. sierrae Sissom, Graham, Donaldson, and Bryson, and V. mcwesti Sissom, Graham, Donaldson, and Bryson, but differs from these species based on aspects of body size, pedipalp carination, chelae granulation, morphometrics, and setal patterns on the metasoma. A molecular clock estimate indicates that the new species shared a common ancestor with V. mcwesti …
A New Vine Snake (Reptilia, Colubridae, Oxybelis) From Peru And Redescription Of O. Acuminatus, Robert C. Jadin, Michael J. Jowers, Sarah A. Orlofske, William E. Duellman, Christopher Blair, John C. Murphy
A New Vine Snake (Reptilia, Colubridae, Oxybelis) From Peru And Redescription Of O. Acuminatus, Robert C. Jadin, Michael J. Jowers, Sarah A. Orlofske, William E. Duellman, Christopher Blair, John C. Murphy
Publications and Research
The Brown Vine Snake, Oxybelis aeneus, was until recently considered a single species, distributed from southern Arizona through the Neotropics into southeastern Brazil. However, newly conducted research restructured the species with a substantial taxonomic revision, recognizing five additional taxa (i.e. O. koehleri, O. microphthalmus, O. potosiensis, O. rutherfordi, O. vittatus) in this species complex. This revision focused on populations in North America, Central America, and northern South America while neglecting the southern portion of its distribution. Here, we examine the taxonomic history of the complex and use it along with specimen data to resurrect O. acuminatus from southeastern Brazil. Finally, …
Morphology And Genetics Concur That Anoura Carishina Is A Synonym Of Anoura Latidens (Chiroptera, Glossophaginae), Camilo Calderón-Acevedo, Miguel Rodríguez-Posada, Nathan Muchhala
Morphology And Genetics Concur That Anoura Carishina Is A Synonym Of Anoura Latidens (Chiroptera, Glossophaginae), Camilo Calderón-Acevedo, Miguel Rodríguez-Posada, Nathan Muchhala
Biology Department Faculty Works
Anoura carishina was described based on cranial and dental morphology, but the original analyses did not include Anoura latidens, a similar species of Anoura. We used morphological, morphometric, and genetic analyses to evaluate the taxonomic identity of A. carishina. We performed a principal components analysis to evaluate the correspondence between morphological and taxonomic groups for 260 specimens of large-bodied Anoura (A. carishina, Anoura geoffroyi, A. latidens, and Anoura peruana), and statistically analyzed traits diagnostic for A. latidens, including (1) morphology of the third upper premolar (P4), (2) size of the second (P3) and third (P4) upper premolars, and (3) angle …
Usefulness Of Palynomorphological Characteristics For The Identification Of Speciescyanus Mill. (Asteraceae) In Turkey: A Taxonomic Approach, Burcu Yilmaz Çitak, Emrah Şi̇ri̇n, Hüseyi̇n Dural, Kuddi̇si̇ Ertuğrul
Usefulness Of Palynomorphological Characteristics For The Identification Of Speciescyanus Mill. (Asteraceae) In Turkey: A Taxonomic Approach, Burcu Yilmaz Çitak, Emrah Şi̇ri̇n, Hüseyi̇n Dural, Kuddi̇si̇ Ertuğrul
Turkish Journal of Botany
Palynological characters of 20 taxa belonging to the Turkish subgenus Cyanus were studied in details using light and scanning electron microscopy. Pollen grains of the subgenus Cyanus were tricolporate or syncolporate, subprolate or prolate-spheroidal, 26.15 to 53 µm in polar size, 22.84 to 46.86 µm in equatorial size, isopolar, and radially symmetrical. The only type of pollen grain ornamentation observed was scabrate-perforate. Principal component analysis and cluster analysis were performed to investigate the relationships of the studied Cyanus taxa. As a result of the phenetic analyses, the polar axis, equatorial axis, colpus length, and apocolpium were found to be significant …
Exploring Zosterophyll Relationships Within A More Broadly Sampled Character Space: A Focus On Anatomy, Megan Nibbelink
Exploring Zosterophyll Relationships Within A More Broadly Sampled Character Space: A Focus On Anatomy, Megan Nibbelink
Cal Poly Humboldt theses and projects
Important constituents of Siluro-Devonian floras, zosterophylls gave rise to the lycophytes. I explore the relationships of 18 zosterophyll species from 16 genera, maximizing sampling of anatomy. Using phylogenetic and phenetic methods, I (1) assess the influence of tree rooting, taxon sampling, and morphological vs anatomical characters on the stability of relationships; and (2) compare phylogenetic and phenetic methods in terms of relationships recovered. Phenetic analyses show sensitivity to taxon sampling and support placement of Renalia among zosterophylls, but do not provide results that are strongly congruent with those of phylogenetic analyses. Phylogenetic analyses demonstrate that taxon and character sampling significantly …
Larval Anatomy Of Monotypic Painted Ant Nest Frogs Lithodytes Lineatus Reveals Putative Homoplasies With The Leptodactylus Pentadactylus Group (Anura: Leptodactylidae), Filipe A.C Do Nascimento, Rafael O. De Sá, Paulo C. De A. Garcia
Larval Anatomy Of Monotypic Painted Ant Nest Frogs Lithodytes Lineatus Reveals Putative Homoplasies With The Leptodactylus Pentadactylus Group (Anura: Leptodactylidae), Filipe A.C Do Nascimento, Rafael O. De Sá, Paulo C. De A. Garcia
Biology Faculty Publications
The morphological diversity of anuran larvae made them an important source of information for evolutionary and systematic studies. For the monotypic frog genus Lithodytes, which has an interesting taxonomic history, including its past synonymizing with Adenomera and its placement as a subgenus of Leptodactylus, the information provided from its larvae can help to understand its systematics interrelationships and also provide insights about its evolutionary trajectories. Herein, we provide a detailed description of the larval morphology of Lithodytes lineatus, including novel data of internal morphology (buccopharyngeal cavity and skeleton), and discuss some morphological and evolutionary aspects in relation …
Biodiversity Of The Coccidia (Apicomplexa: Conoidasida) In Vertebrates: What We Know, What We Do Not Know, And What Needs To Be Done, Donald W. Duszynski
Biodiversity Of The Coccidia (Apicomplexa: Conoidasida) In Vertebrates: What We Know, What We Do Not Know, And What Needs To Be Done, Donald W. Duszynski
Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications
Over the last two decades my colleagues and I have assembled the literature on a good percentage of most of the coccidians (Conoidasida) known, to date, to parasitise: Amphibia, four major lineages of Reptilia (Amphisbaenia, Chelonia, Crocodylia, Serpentes), and seven major orders in the Mammalia (Carnivora, Chiroptera, Lagomorpha, Insectivora, Marsupialia, Primates, Scandentia). These vertebrates, combined, comprise about 15,225 species; only about 899 (5.8%) of them have been surveyed for coccidia and 1,946 apicomplexan valid species names or other forms are recorded in the literature. Based on these compilations and other factors, I extrapolated that there yet may be an additional …