Pesquisa Agropecuária Brasileira | |
Association of bGH and Pit-1 gene variants with milk production traits in dairy Gyr bulls | |
Keiko Kusamura De Mattos2  Silvia Nassif Del Lama2  Mario Luiz Martinez1  Ary Ferreira Freitas1  | |
[1] ,Universidade Federal de São Carlos Dep. de Genética e Evolução São Carlos SP ,Brazil | |
关键词: dairy cattle; genetic markers; polymorphism; zebu; gado leiteiro; marcador genético; polimorfismo; zebu; | |
DOI : 10.1590/S0100-204X2004000200007 | |
来源: SciELO | |
【 摘 要 】
The objective of this study was to obtain genetic marker information in the Gyr breed by analyzing bGH and Pit-1 gene polymorphisms and to verify their association with milk production traits. One sample including 40 Gyr bulls were genotyped at two bGH gene restriction sites (bGH- AluI and bGH-MspI) and at one restriction site in the Pit-1 gene (Pit-1 HinfI). The bGH-MspI(-) allele was favorable for fat milk percentage. The heterozigous Pit-1 HinfI (+/-) bulls were superior for fat milk production, in relation to homozigous Pit-1 HinfI (+/+). The Pit-1 and bGH genes are strong candidates in the dairy cattle QTL search, and zebuine populations are promising samples for this purpose.
【 授权许可】
CC BY
All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License
【 预 览 】
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RO202103040056191ZK.pdf | 28KB | download |