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Quantitative trait loci with additive effects on growth and carcass traits in a Wagyu–Limousin F 2 population
Author(s) -
Alexander L. J.,
Geary T. W.,
Snelling W. M.,
MacNeil M. D.
Publication year - 2007
Publication title -
animal genetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.756
H-Index - 81
eISSN - 1365-2052
pISSN - 0268-9146
DOI - 10.1111/j.1365-2052.2007.01616.x
Subject(s) - biology , quantitative trait locus , zoology , weaning , population , longissimus muscle , genetics , veterinary medicine , carcass weight , chromosome , body weight , gene , demography , endocrinology , medicine , sociology
Summary 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 × 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.