期刊
ANIMAL BIOTECHNOLOGY
卷 34, 期 4, 页码 980-985出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/10495398.2021.2007118
关键词
Goat; milk production; copy number variation; DGAT1; association
This study revealed the distribution of DGAT1 CNV in Chinese goats for the first time and found significant differences among dairy, meat, and fiber goats. The study also showed significant associations between DGAT1 CNV and milk production traits, indicating its potential role in marker-assisted selection of dairy goat breeding.
Goat is an important sector for meat and dairy products. Diacylglycerol O-acyltransferase 1 (DGAT1), which is a key gene in milk production, has been recently detected to overlap with a novel copy number variation (CNV) in goats. CNVs could be genetic markers providing new insights into the genetic basis of phenotypic variation. Up to now, there are no reports on the DGAT1-related CNV (DGAT1 CNV) in Chinese goats. This study first detected the distribution of the DGAT1 CNV in Chinese seven goat breeds, finding substantial differences among dairy, meat, and fiber goats (P < 0.01). The association analysis between the DGAT1 CNV and milk production traits revealed significant associations: Xinong Sannen (XS) dairy goat with copy number loss type had higher freezing point depression (FPD) (P < 0.01) and milk solids-not-fat (SNF) content (P < 0.05). Overall, our study unraveled the distribution of DGAT1 CNV in Chinese goats for the first time and found the potential role of this CNV in the marker-assisted selection of dairy goat breeding.
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