Genotype frequency distributions of 28 SNP markers in two commercial lines and five Chinese native chicken populations.
Egg laying trait
Genetic marker
Growth trait
Native chicken
Journal
BMC genetics
ISSN: 1471-2156
Titre abrégé: BMC Genet
Pays: England
ID NLM: 100966978
Informations de publication
Date de publication:
04 02 2020
04 02 2020
Historique:
received:
04
03
2019
accepted:
27
01
2020
entrez:
6
2
2020
pubmed:
6
2
2020
medline:
3
10
2020
Statut:
epublish
Résumé
Modern 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. Based 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. Our 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.
Sections du résumé
BACKGROUND
Modern 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.
RESULTS
Based 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.
CONCLUSIONS
Our 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.
Identifiants
pubmed: 32019486
doi: 10.1186/s12863-020-0815-z
pii: 10.1186/s12863-020-0815-z
pmc: PMC7001339
doi:
Substances chimiques
Genetic Markers
0
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
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