PUBLICATION
Comparative population genomics reveals genetic basis underlying body size of domestic chickens
- Authors
- Wang, M.S., Huo, Y.X., Li, Y., Otecko, N.O., Su, L.Y., Xu, H.B., Wu, S.F., Peng, M.S., Liu, H.Q., Zeng, L., Irwin, D.M., Yao, Y.G., Wu, D.D., Zhang, Y.P.
- ID
- ZDB-PUB-161017-1
- Date
- 2016
- Source
- Journal of molecular cell biology 8(6): 542-552 (Journal)
- Registered Authors
- Keywords
- Artificial selection, Body size, Comparative population genomics, Domestication
- MeSH Terms
-
- Animals
- Animals, Domestic/genetics*
- Base Pairing/genetics
- Body Size/genetics*
- Bone Morphogenetic Proteins/genetics
- Chickens/genetics*
- Chromosomes/genetics
- Genetic Loci
- Genetics, Population*
- Genomics
- Neovascularization, Physiologic/genetics
- Phylogeny
- Polymorphism, Single Nucleotide/genetics
- Zebrafish/anatomy & histology
- Zebrafish/genetics
- PubMed
- 27744377 Full text @ J. Mol. Cell Biol.
Citation
Wang, M.S., Huo, Y.X., Li, Y., Otecko, N.O., Su, L.Y., Xu, H.B., Wu, S.F., Peng, M.S., Liu, H.Q., Zeng, L., Irwin, D.M., Yao, Y.G., Wu, D.D., Zhang, Y.P. (2016) Comparative population genomics reveals genetic basis underlying body size of domestic chickens. Journal of molecular cell biology. 8(6):542-552.
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.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping