Quantitative trait locus analysis of four economic traits in one kind of common carp

Q4 Environmental Science

水产学报 Pub Date : 2013-01-01 DOI:10.3724/SP.J.1231.2013.38290

Weihua Lv, Y. Kuang, Xianhu Zheng, D. Cao, Chao Li, Cui-yun Lu, Xiaowen Sun

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引用次数: 0

Abstract

In this study,the reference panel contained 92 individuals,which were a F2 family obtained by mating of F1 hybrids derived from crossing Barbless carp(Cyprinus pellegrini)with Hebao-cold tolerance red carp(Cyprinus carpio wuyuanensis),and the genetic linkage map was constructed with 300 microsatellites,which was used to detect the QTLs for standard length(SL),body thickness(BT),body height(H)and body weight(W)in the panel by GridQTL software.The results showed that 17 related QTLs distributed in the 6 linkage groups were obtained.Four QTLs related to standard length,of which the linkage group of LG5,LG7,LG19 and LG32 were at 5% significant level,but LG32 was at 1% significant level,accounting 5.14%,10.2%,7.02%,9.36% of phenotypic variation,respectively.Four QTLs were identified for body thickness in LG11,LG19,which were at 5% significant level,QTL based on LG5 1% was at significant level,accounting for 6.54%,6.42% and 8.43% of phenotypic variation,respectively.Six QTLs were associated with body height in LG5,LG7,LG10,LG11,LG19 and LG32.LG7 was at 1% significant level,whereas the others were at 5% significant level,accounting 8.95%,6.34%,5.92%,6.29%,6.78%,7.79% of phenotypic variation.Three QTLs were responsible for body weight and LG5,LG7 were at 5% significant level and LG32 was at 1% significant level,which accounted for 6.44%,5.55%,8.36%.Hybrid progenies crossed by two carp strains have been used in this study,which enriched the diversity of QTL population.It is a foundation for further QTL comparative analysis with whole genome level,and common QTL identification in different strains or breeds of carp.It will also be of great assistance in marker-assisted selection(MAS)in common carp.

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一种鲤鱼四种经济性状的数量性状位点分析

本研究以无刺鲤(Cyprinus pellegrini)与合宝耐寒红鱼(Cyprinus carpio wuyuanensis)杂交获得的F1杂交种F2家族92个个体为参考样本，利用300颗微卫星构建遗传连锁图谱，利用GridQTL软件对样本中的标准长度(SL)、体厚(BT)、体高(H)和体重(W)的qtl进行检测。结果表明，获得了分布在6个连锁群中的17个相关qtl。4个与标准长度相关的qtl，其中LG5、LG7、LG19和LG32连锁群达到5%显著水平，LG32为1%显著水平，分别占表型变异的5.14%、10.2%、7.02%和9.36%。鉴定出4个与LG11、LG19体厚相关的QTL，均达到5%的显著水平，基于LG5 1%的QTL达到显著水平，分别占表型变异的6.54%、6.42%和8.43%。在LG5、LG7、LG10、LG11、LG19和LG32中，有6个qtl与体高相关。LG7居1%显著水平，其余居5%显著水平，占表型变异的8.95%、6.34%、5.92%、6.29%、6.78%、7.79%。3个qtl对体重和LG5、LG7和LG32的影响分别达到5%和1%的显著水平，分别占6.44%、5.55%和8.36%。本研究利用两个鲤鱼品系杂交后代，丰富了QTL群体的多样性。为进一步进行全基因组水平的QTL比较分析和不同品系或品种间的共同QTL鉴定奠定了基础。这对普通鲤鱼的标记辅助选择(MAS)也有很大的帮助。

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来源期刊

水产学报 Environmental Science-Management, Monitoring, Policy and Law

CiteScore

1.40

自引率

0.00%

发文量

5213

期刊介绍： "Fisheries of" mainly reflects the results of scientific research and development of the direction of aquaculture for domestic and foreign academic exchanges Fisheries Service. Mainly basic research published in Fisheries, aquaculture and proliferation of fishing waters environmental protection, preservation of aquatic products processing and utilization, fishing equipment, and other aspects of mechanical papers, research briefings and reviewed.