Skeletal Muscle Expression of Actinin-3 () in Relation to Feed Efficiency Phenotype of F - Steers.

In this study, actinin-3 () gene expression was investigated in relation to the feed efficiency phenotype in - crossbred steers. A measure of relative feed efficiency based on residual feed intake relative to predictions from the NRC beef cattle model was analyzed by the use of a mixed linear model that included sire and family nested within sire as fixed effects and age, animal type, sex, condition, and breed as random effects for 173 F Nellore-Angus steers. Based on these residual intake observations, individuals were ranked from most efficient to least efficient.

High-Temperature and Drought-Resilience Traits among Interspecific Chromosome Substitution Lines for Genetic Improvement of Upland Cotton.

Upland cotton ( L.) growth and development during the pre-and post-flowering stages are susceptible to high temperature and drought. We report the field-based characterization of multiple morpho-physiological and reproductive stress resilience traits in 11 interspecific chromosome substitution (CS) lines isogenic to each other and the inbred line TM-1.