Quantitative trait loci with additive effects on growth and carcass traits in a Wagyu-Limousin F2 population.
A whole-genome scan for carcass traits [average daily gain during the pre-weaning, growth and finishing periods; birth weight; hot carcass weight and longissimus muscle area (LMA)] was performed on 328 F(2) progeny produced from Wagyu x Limousin-cross parents derived from eight founder Wagyu bulls. Nine significant (P </= 0.05) and four suggestive (P </= 0.1) QTL affecting seven growth and carcass traits were identified. Significant QTL were located on bovine chromosomes 2, 4, 7, 9, 12, 16, 17 and 29. A QTL previously reported on chromosome 2 for LMA was also detected in this study. These results provide insight into genetic differences between the Wagyu and Limousin breeds.
Alexander
L J
LJ
USDA-ARS, Miles City, MT 59301, USA. lee.alexander@ars.usda.gov
Geary
T W
TW
Snelling
W M
WM
Macneil
M D
MD
D000818:Animals; D001835:Body Weight / Q000235:genetics; D002417:Cattle / Q000033:anatomy & histology / Q000235:genetics* / Q000254:growth & development; D002874:Chromosome Mapping; D005260:Female; D005819:Genetic Markers; D008297:Male; D040641:Quantitative Trait Loci
D005819:Genetic Markers