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Full-Text Articles in Life Sciences

Association Of Genetic Variation To Healthfulness Of Beef, Shu Zhang, Travis Knight, Jennifer Minick, Richard G. Tait Jr., Allen H. Trenkle, Doyle E. Wilson, Gene H. Rouse, Daryl R. Strohbehn, James M. Reecy, Donald C. Beitz Oct 2015

Association Of Genetic Variation To Healthfulness Of Beef, Shu Zhang, Travis Knight, Jennifer Minick, Richard G. Tait Jr., Allen H. Trenkle, Doyle E. Wilson, Gene H. Rouse, Daryl R. Strohbehn, James M. Reecy, Donald C. Beitz

James M Reecy

The objective was to determine the natural variability in beef fatty acid composition and to identify single nucleotide polymorphisms (SNPs) in the stearoyl-CoA desaturase (SCD) gene to test the association of SNPs with fatty acid composition. We have used common gas chromatographic techniques to determine the fatty acid composition of phospholipids and triacylglycerols (TAGs) extracted from beef muscle (longissimus dorsi) from 800 sire-identified cattle originating from Iowa State University beef cattle breeding selection projects. Heritability of individual fatty acids and indexes of fatty acid desaturase and elongase systems were calculated by evaluating specific ratios of fatty acids (product/precursor). In ...


Identifying A Role For Tbx2 In Heart Development, Christian N. Paxton, James M. Reecy Dec 2013

Identifying A Role For Tbx2 In Heart Development, Christian N. Paxton, James M. Reecy

James M Reecy

Functional domains were identified within the Tbx2 protein. We have identified a couple of proteins that interact with Tbx2. Knowledge of how Tbx2 interacts with other proteins is essential in understanding how it inhibits gene expression during heart development.


Genome-Wide Association Study Of Infectious Bovine Keratoconjunctivitis In Angus Cattle, Kadir Kizilkaya, Richard G. Tait Jr., Dorian J. Garrick, Rohan L. Fernando, James M. Reecy Dec 2013

Genome-Wide Association Study Of Infectious Bovine Keratoconjunctivitis In Angus Cattle, Kadir Kizilkaya, Richard G. Tait Jr., Dorian J. Garrick, Rohan L. Fernando, James M. Reecy

James M Reecy

Background Infectious Bovine Keratoconjunctivitis (IBK) in beef cattle, commonly known as pinkeye, is a bacterial disease caused by Moraxella bovis. IBK is characterized by excessive tearing and ulceration of the cornea. Perforation of the cornea may also occur in severe cases. IBK is considered the most important ocular disease in cattle production, due to the decreased growth performance of infected individuals and its subsequent economic effects. IBK is an economically important, lowly heritable categorical disease trait. Mass selection of unaffected animals has not been successful at reducing disease incidence. Genome-wide studies can determine chromosomal regions associated with IBK susceptibility. The ...