A consensus linkage map of common carp （Cyprinus carpio L.） to compare the distribution and variation of QTLs associated with growth traits

The ability to detect and identify quantitative trait loci （QTLs） in a single population is often limited. Analyzing multiple pop- ulations in QTL analysis improves the power of detecting QTLs and provides a better understanding of their functional allelic variation and distribution. In this study,...

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Bibliographic Details
Published in:中国科学：生命科学英文版 2013 (4), p.351-359
Main Author: ZHENG XianHu KUANG YouYi LV weinua CAO DingChen ZHANG XiaoFeng LI Chao LU CuiYun SUN XiaoWen
Format: Article
Language:English
Subjects:
QTLs
QTL检测
协商
数量性状座位
生长性状
等位基因变异
遗传连锁图谱
鲤鱼
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Summary:The ability to detect and identify quantitative trait loci （QTLs） in a single population is often limited. Analyzing multiple pop- ulations 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 com- prises 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.
ISSN:1674-7305
1869-1889