Analyses of growth performance and realized heritability of Pampus argenteus in a breeding program in China
Analyses of growth performance and realized heritability of Pampus argenteus in a breeding program in China
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中国育种计划中银鲳的生长性能和已实现的遗传力分析
DOI：
10.3389/fmars.2022.935924
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发表时间：
2022-08
影响因子：
3.7
通讯作者：
Danli Wang
中科院分区：
文献类型：
--
作者：
Cheng Zhang;Kimran Jean Jacques;Shun Zhang;Shanliang Xu;Yajun Wang;Danli Wang
银鲳鱼是一种经济上重要的海水养殖品种。然而，人们对其重要商业性状的遗传参数知之甚少。为了确定通过选择生长是否可以实现持续进步，我们以东海银鲫体重性状作为质量选择的目标性状。选择组和对照组在生长60、90和120 d时的实现遗传力进行分析。结果表明，所选组在孵化后第3个月的生长性能参数高于对照组，而在第4个月的结果则相反。通过Pearson相关分析和通径分析，发现与体重高度相关的形态性状分别为体长和尾长。孵化后第60、90和120 d，选择组体重性状遗传增益分别为9.44%、17.64%和15.18%，实现遗传力均值处于中等水平。然而，在选择组中，与体重显著相关的两个形态性状的遗传变异值均在10%以下，遗传增益相对较低且稳定，而选择组中体重性状的遗传变异值均在20%以上，遗传增益相对较高。这说明通过选择体重性状可以获得相当大的遗传增益，为种属选择性育种的连续性提供了支持证据。
Silver pomfret (Pampus argenteus) is an economically important mariculture species. However, little is known about the genetic parameters of its commercially important traits. In order to determine whether continuous progress can be achieved by selection for growth, we took the body weight trait of East China Sea P. argenteus as the target trait of mass selection. The realized heritability of P. argenteus from the selected group and control group was analyzed at the three growth times (60, 90, and 120 days). The results showed that the growth performance parameters of the selected group in the third month post hatching were higher than those in the control group, but the opposite results were found in the fourth month. The morphological traits highly correlated with the body weight of P. argenteus were found by Pearson correlation analysis and path analysis, which were body length and tail length, respectively. On the 60th, 90th, and 120th days after hatching, the genetic gains of body weight trait in the selected group were 9.44%, 17.64%, and 15.18%, respectively, and the mean values of realized heritability were at moderate level. Nevertheless, in the selected group, the genetic variation values of the two morphological traits significantly related to body weight were all below 10%, and the genetic gains were relatively low and stable, but the genetic variation values of body weight trait in the selected group were above 20%, and genetic gains were relatively high. These implied that it is possible to obtain considerable genetic gains by selecting for body weight trait, and the results provide supportive evidence for the continuity of the P. argenteus-selective breeding program.
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DOI：
10.1002/9781118313718.ch4
发表时间：
2012-08
期刊：
Quantitative Genetics
影响因子：
--
作者：
G. Acquaah
通讯作者：
G. Acquaah
DOI：
--
发表时间：
2014
期刊：
Chinese Journal of Marine Drugs
影响因子：
--
作者：
Zhang Meng-q
通讯作者：
Zhang Meng-q
影响因子：
2
作者：
K. Overturf
通讯作者：
K. Overturf
影响因子：
1.6
作者：
F. Zhao;Yinghui Dong;Zhuang Ping;Tao Zhang;Long-zhen Zhang;Zhao-hong Shi
通讯作者：
F. Zhao;Yinghui Dong;Zhuang Ping;Tao Zhang;Long-zhen Zhang;Zhao-hong Shi
影响因子：
4.5
作者：
M. Rezk;R. Smitherman;John C. Williams;A. Nichols;H. Kucuktas;R. Dunham
通讯作者：
M. Rezk;R. Smitherman;John C. Williams;A. Nichols;H. Kucuktas;R. Dunham