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Genotype frequency distributions of 28 SNP markers in two commercial lines and five Chinese native chicken populations

Authors
  • Li, Jing-Jing1
  • Zhang, Long2
  • Ren, Peng1
  • Wang, Ye1
  • Yin, Ling-Qian1
  • Ran, Jin-Shan1
  • Zhang, Xian-Xian1
  • Liu, Yi-Ping1
  • 1 Sichuan Agricultural University, Chengdu, Sichuan, 611130, China , Chengdu (China)
  • 2 China West Normal University, Nanchong, Sichuan, 637009, China , Nanchong (China)
Type
Published Article
Journal
BMC Genetics
Publisher
Springer (Biomed Central Ltd.)
Publication Date
Feb 04, 2020
Volume
21
Issue
1
Identifiers
DOI: 10.1186/s12863-020-0815-z
Source
Springer Nature
Keywords
License
Green

Abstract

BackgroundModern breeding in the poultry industry mainly aims to produce high-performance poultry lines and breeds in two main directions of productivity, meat and eggs. To understand more about the productive potential of lowly selected Chinese native chicken populations, we selected 14 representative SNP markers strongly associated with growth traits or carcass traits and 14 SNP markers strongly associated with egg laying traits through previous reports. By using the MassArray technology, we detected the genotype frequency distributions of these 28 SNP markers in seven populations including four lowly selected as well as one moderately selected Sichuan native chicken populations, one commercial broiler line and one commercial layer line.ResultsBased on the genotype frequency distributions of these 28 SNP markers in 5 native chicken populations and 2 commercial lines, the results suggested that these Chinese indigenous chicken populations have a relatively close relationship with the commercial broiler line but a marked distinction from the commercial layer line. Two native chicken breeds, Shimian Caoke Chicken and Daheng Broilers, share similar genetic structure with the broiler line.ConclusionsOur observations may help us to better select and breed superior domestic chickens and provide new clues for further study of breeding programs in local chicken populations.

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