A consensus linkage map of common carp (Cyprinus carpio L.) to compare the distribution and variation of QTLs associated with growth traits
文献类型: 外文期刊
作者: Zheng XianHu 1 ; Kuang YouYi 1 ; Lv WeiHua 1 ; Cao DingChen 1 ; Zhang XiaoFeng 1 ; Li Chao 1 ; Lu CuiYun 1 ; Sun XiaoWen 1 ;
作者机构: 1.Chinese Acad Fishery Sci, Heilongjiang River Fisheries Res Inst, Harbin 150070, Peoples R China
2.Shanghai Ocean Univ, Coll Fisheries & Life Sci, Shanghai 201306, Peoples R China
关键词: common carp;consensus map;comparative QTL analysis;growth-related traits
期刊名称:SCIENCE CHINA-LIFE SCIENCES ( 影响因子:6.038; 五年影响因子:4.754 )
ISSN: 1674-7305
年卷期: 2013 年 56 卷 4 期
页码:
收录情况: SCI
摘要: The ability to detect and identify quantitative trait loci (QTLs) in a single population is often limited. Analyzing multiple populations in QTL analysis improves the power of detecting QTLs and provides a better understanding of their functional allelic variation and distribution. In this study, a consensus map of the common carp was constructed, based on four populations, to compare the distribution and variation of QTLs. The consensus map spans 2371.6 cM across the 42 linkage groups and comprises 257 microsatellites and 421 SNPs, with a mean marker interval of 3.7 cM/marker. Sixty-seven QTLs affecting four growth traits from the four populations were mapped to the consensus map. Only one QTL was common to three populations, and nine QTLs were detected in two populations. However, no QTL was common to all four populations. The results of the QTL comparison suggest that the QTLs are responsible for the phenotypic variability observed for these traits in a broad array of common carp germplasms. The study also reveals the different genetic performances between major and minor genes in different populations.
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