Advertisement

 

 

Comparative population genomics reveals genetic basis underlying body size of domestic chickens.

Comparative population genomics reveals genetic basis underlying body size of domestic chickens.
Author Information (click to view)

Wang MS, Huo YX, Li Y, Otecko NO, Su LY, Xu HB, Wu SF, Peng MS, Liu HQ, Zeng L, Irwin DM, Yao YG, Wu DD, Zhang YP,


Wang MS, Huo YX, Li Y, Otecko NO, Su LY, Xu HB, Wu SF, Peng MS, Liu HQ, Zeng L, Irwin DM, Yao YG, Wu DD, Zhang YP, (click to view)

Wang MS, Huo YX, Li Y, Otecko NO, Su LY, Xu HB, Wu SF, Peng MS, Liu HQ, Zeng L, Irwin DM, Yao YG, Wu DD, Zhang YP,

Advertisement
Share on FacebookTweet about this on TwitterShare on LinkedIn

Journal of molecular cell biology 2016 Oct 15() pii mjw044
Abstract

Body size is the most important economic trait for animal production and breeding. Several hundreds of loci have been reported to be associated with growth trait and body weight in chickens. The loci are mapped to large genomic regions due to the low density and limited number of genetic markers in previous studies. Herein, we employed comparative population genomics to identify genetic basis underlying the small body size of Yuanbao chicken (a famous ornamental chicken) based on 89 whole genomes. The most significant signal was mapped to the BMP10 gene, whose expression was upregulated in the Yuanbao chicken. Overexpression of BMP10 induced a significant decrease in body length by inhibiting angiogenic vessel development in zebrafish. In addition, three other loci on chromosomes 1, 2, and 24 were also identified to be potentially involved in the development of body size. Our results provide a paradigm shift in identification of novel loci controlling body size variation, availing a fast and efficient strategy. These loci, particularly BMP10, add insights into ongoing research of the evolution of body size under artificial selection and have important implications for future chicken breeding.

Submit a Comment

Your email address will not be published. Required fields are marked *

one × 2 =

[ HIDE/SHOW ]