期刊
RESEARCH IN VETERINARY SCIENCE
卷 85, 期 2, 页码 265-268出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.rvsc.2007.10.014
关键词
HTR1B; SNPs; milk yield; bovine
Serotonin receptor 1B (HTR1B) is one of the 14 different identified serotonin receptors which are involved in the regulation of behaviors such as sleep, fear, aggression, mood, and feeding. The aims of this study were to characterize polymorphisms in the 5' coding and the 3' flanking regions of the bovine HTR1B gene among Chinese Holsteins and to identify the association of HTR1B polymorphisms with milk production performance. SSCP was used to examine the polymorphisms at four loci and the fragments with different SSCP patterns were sequenced. A total of three single nucleotide polymorphisms (SNPs) were detected, among which the 205G > T mutation was found to cause a predicted amino acid change: from Ala to Ser at position 69. The polymorphism of G205T was identified to be associated with milk yield trait. Furthermore, the H1-C genotype was found to be associated with a significant increase in milk yield of 489 kg vs. the H1-A genotype (P < 0.05). (C) 2007 Elsevier Ltd. All rights reserved.
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