A chromosome-wide QTL mapping on chromosome 2 to identify loci affecting live weight and carcass traits in F2 population of Japanese quail

E. Nasirifar, M. Talebi, A. Esmailizadeh, H. Moradian, S.S. Sohrabi and N. Askari
Additional contact information
E. Nasirifar: Department of Animal Science, Science and Research Branch, Islamic Azad University, Tehran, Iran
M. Talebi: Department of Animal Science, Science and Research Branch, Islamic Azad University, Tehran, Iran
A. Esmailizadeh: State Key Laboratory of Genetic Resources and Evolution, Yunnan Laboratory of Molecular Biology of Domestic Animals, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, P.R. China
H. Moradian: Department of Animal Science, Faculty of Agriculture, Shahid Bahonar University of Kerman, Kerman, Iran
S.S. Sohrabi: Department of Animal Science, Faculty of Agriculture, Shahid Bahonar University of Kerman, Kerman, Iran
N. Askari: National Institute for Genetic Engineering and Biotechnology, Tehran, Iran

Czech Journal of Animal Science, 2016, vol. 61, issue 6, 290-297

Abstract: The Japanese quail (Coturnix japonica) is a considerable species which is often used for animal modelling in breeding researches. This study aims to detect quantitative trait loci (QTL) underlying growth and carcass traits in Japanese quail. A three-generation resource population was developed using wild and white Japanese quail strains. The total mapping population consisted of 472 birds. Eight pairs of white and wild birds were mated reciprocally and 34 F1 birds were generated. The F1 birds were intercrossed to produce F2 offspring (422 birds). All of the animals from three generations were genotyped for four microsatellite markers on chromosome 2 in quail. QTL analysis was performed with the Least Squares interval mapping method. The results indicated significant QTL for breast weight, carcass weight, pre-stomach weight, pancreas percentage, head weight, intestine weight, spleen weight, and heart weight. There was also evidence for dominance QTL affecting pre-stomach weight, percentage of pre-stomach weight, and percentage of breast on chromosome 2. The proportion of F2 phenotypic variation explained by significant additive and dominance QTL effects ranged from 1.06 to 3.33% and 0.71 to 4.36%, respectively. There was no evidence for imprinting effect on the studied traits.

Keywords: DNA markers; growth traits; QTLs (search for similar items in EconPapers)
Date: 2016
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlcjs:v:61:y:2016:i:6:id:113-2014-cjas

DOI: 10.17221/113/2014-CJAS

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