Genetic linkage mapping and genetic analysis of QTL related to eye cross and eye diameter in common carp (Cyprinus carpio L.) using microsatellites and SNPs
文献类型: 外文期刊
作者: Jin, Shubo 1 ; Zhang, Xiaofeng 1 ; Jia, Zhiying 1 ; Fu, Hongtuo 2 ; Zheng, Xianhu 1 ; Sun, Xiaowen 1 ;
作者机构: 1.Chinese Acad Fishery Sci, Heilongjiang River Fisheries Res Inst, Harbin 150070, Heilongjiang, Peoples R China
2.Chinese Acad Fishery Sci, Freshwater Fisheries Res Ctr, Key Lab Freshwater Fisheries & Germplasm Resource, Minist Agr, Wuxi 214081, Peoples R China
3.Shanghai Ocean Univ, Coll Fisheries & Life Sci, Shanghai 201306, Peoples R China
关键词: Mirror carp (Cyprinus carpio L.);Eye cross;Eye diameter;Quantitative trait locus;Correlation analysis;Breeding
期刊名称:AQUACULTURE ( 影响因子:4.242; 五年影响因子:4.723 )
ISSN: 0044-8486
年卷期: 2012 年 358 卷
页码:
收录情况: SCI
摘要: A group of 68 F-1 hybrid common carp was used to construct a linkage map using JoinMap4.0 software. A total of 507 microsatellite and SNP markers isolated from genomic library (186 SSR and 321 SNP markers) were assigned to construct the genetic map, comprising 62 linkage groups. The total length of the linkage map for the common carp is 2805.85cM with an average linkage group length of 6.31cM. Both eye diameter and eye cross were located on the genetic map. Eight QTL were found to be associated with eye diameter, explaining 16.60-36.70% of the total phenotypic variation. Eleven QTL were found to be related to eye cross, explaining 13.6-31.6% of the total phenotypic variation. Five major QTL for eye diameter and nine major QTL for eye cross explained the highest fraction of the phenotypic variation. The relationship of eye cross and eye diameter with other commercial traits and QTL linkage group analysis suggests that eye diameter and eye cross might be used to assist in indirect selection for body weight and aggregate breeding could achieve multiple effects. These findings have implications for future genetic studies and breeding of the common carp. (C) 2012 Elsevier B. V. All rights reserved.
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