QTL mapping for economically important traits of common carp (Cyprinus carpio L.)

文献类型： 外文期刊

第一作者： Laghari, Muhammad Younis

作者： Laghari, Muhammad Younis;Xin, Baoping;Laghari, Muhammad Younis;Lashari, Punhal;Zhang, Xiaofeng;Xu, Peng;Zhang, Yan;Sun, Xiaowen;Laghari, Muhammad Younis;Lashari, Punhal;Narejo, Naeem Tariq

作者机构：

关键词： Body length;Body thickness;Body weight;QTL;Common carp

期刊名称：JOURNAL OF APPLIED GENETICS （ 影响因子：3.24； 五年影响因子：2.756 ）

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收录情况： SCI

摘要： Quantitative trait loci (QTL) were analyzed for three economically important traits, i.e., body weight (BW), body length (BL), and body thickness (BT), in an F1 family of common carp holding the 190 progeny. A genetic linkage map spanning 3,301 cM in 50 linkage groups with 627 markers and an average distance of 5.6 cM was utilized for QTL mapping. Sixteen QTLs associated with all three growth-related traits were scattered across ten linkage groups, LG6, LG10, LG17, LG19, LG25, LG27, LG28, LG29, LG30, and LG39. Six QTLs for BW and five each for BL and BT explained phenotypic variance in the range 17.0-32.1 %. All the nearest markers of QTLs were found to be significantly (p a parts per thousand currency signaEuro parts per thousand 0.05) related with the trait. Among these QTLs, a total of four, two (qBW30 and qBW39) related with BW, one (qBL39) associated with BL, and one (qBT29) related to BT, were found to be the major QTLs with a phenotypic variance of > 20 %. qBW30 and qBW39 with the nearest markers HLJ1691 and HLJ1843, respectively, show significant values of 0.0038 and 0.0031, correspondingly. QTLs qBL39 and qBT29 were found to have significant values of 0.0047 and 0.0015, respectively. Three QTLs (qBW27, qBW30, qBW39) of BW, two for BL (qBL19, qBL39), and two for BT (qBT6, qBT25) found in this study were similar to populations with different genetic backgrounds. In this study, the genomic region controlling economically important traits were located. These genomic regions will be the major sources for the discovery of important genes and pathways associated with growth-related traits in common carp.

分类号： Q1

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