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Articles 1 - 4 of 4
Full-Text Articles in Life Sciences
Congenic Strain Analysis Reveals Genes That Are Rapidly Evolving Components Of A Prezygotic Isolation Mechanism Mediating Incipient Reinforcement, Christina M. Laukaitis, Corina Mauss, Robert C. Karn
Congenic Strain Analysis Reveals Genes That Are Rapidly Evolving Components Of A Prezygotic Isolation Mechanism Mediating Incipient Reinforcement, Christina M. Laukaitis, Corina Mauss, Robert C. Karn
Scholarship and Professional Work - LAS
Two decades ago, we developed a congenic strain of Mus musculus, called b-congenic, by replacing the androgen-binding protein Abpa27a allele in the C3H/HeJ genome with the Abpa27b allele from DBA/2J. We and other researchers used this b-congenic strain and its C3H counterpart, the a-congenic strain, to test the hypothesis that, given the choice between signals from two strains with different a27 alleles on the same genetic background, test subjects would prefer the homosubspecific one. It was our purpose in undertaking this study to characterize the segment transferred from DBA to the C3H background in producing the b-congenic …
Soil C And N Changes With Afforestation Of Grasslands Across Gradients Of Precipitation And Plantation Age, Sean T. Berthrong, Gervasio Pinero, Esteban G. Jobbagy, Robert B. Jackson
Soil C And N Changes With Afforestation Of Grasslands Across Gradients Of Precipitation And Plantation Age, Sean T. Berthrong, Gervasio Pinero, Esteban G. Jobbagy, Robert B. Jackson
Scholarship and Professional Work - LAS
Afforestation, the conversion of unforested lands to forests, is a tool for sequestering anthropogenic carbon dioxide into plant biomass. However, in addition to altering biomass, afforestation can have substantial effects on soil organic carbon (SOC) pools, some of which have much longer turnover times than plant biomass. An increasing body of evidence suggests that the effect of afforestation on SOC may depend on mean annual precipitation (MAP). The goal of this study was to test how labile and bulk pools of SOC and total soil nitrogen (TN) change with afforestation across a rainfall gradient of 600–1500 mm in the Rio …
Taste Neophobia And C-Fos Expression In The Rat Brain, Jian-You Lin, Christopher T. Roman, Joe Arthurs, Steve Reilly
Taste Neophobia And C-Fos Expression In The Rat Brain, Jian-You Lin, Christopher T. Roman, Joe Arthurs, Steve Reilly
Scholarship and Professional Work – COPHS
Taste neophobia refers to a reduction in consumption of a novel taste relative to when it is familiar. To gain more understanding of the neural basis of this phenomenon, the current study examined whether a novel taste (0.5% saccharin) supports a different pattern of c-Fos expression than the same taste when it is familiar. Results revealed that the taste of the novel saccharin solution evoked more Fos immunoreactivity than the familiar taste of saccharin in the basolateral region of the amygdala, central nucleus of the amygdala, gustatory portion of the thalamus, and the gustatory insular cortex. No such differential expression …
The Roles Of Gene Duplication, Gene Conversion And Positive Selection In Rodent Esp And Mup Pheromone Gene Families With Comparison To The Abp Family, Robert C. Karn, Christina M. Laukaitis
The Roles Of Gene Duplication, Gene Conversion And Positive Selection In Rodent Esp And Mup Pheromone Gene Families With Comparison To The Abp Family, Robert C. Karn, Christina M. Laukaitis
Scholarship and Professional Work - LAS
Three proteinaceous pheromone families, the androgen-binding proteins (ABPs), the exocrine-gland secreting peptides (ESPs) and the major urinary proteins (MUPs) are encoded by large gene families in the genomes of Mus musculus and Rattus norvegicus. We studied the evolutionary histories of the Mup and Esp genes and compared them with what is known about the Abp genes. Apparently gene conversion has played little if any role in the expansion of the mouse Class A and Class B Mup genes and pseudogenes, and the rat Mups. By contrast, we found evidence of extensive gene conversion in many Esp genes although …