Multivariate Diallel Cross-Analyses for Body Weight of Rainbow Trout, Oncorhynchus mykiss, in China

文献类型： 外文期刊

第一作者： Hu, Guo

作者： Hu, Guo;Gu, Wei;Wang, Bingqian;Yang, Runqing

作者机构：

期刊名称：JOURNAL OF THE WORLD AQUACULTURE SOCIETY （ 影响因子：2.512； 五年影响因子：2.47 ）

ISSN： 0893-8849

年卷期： 2017 年 48 卷 2 期

页码：

收录情况： SCI

摘要： Crossbreeding is a common technical approach for the development of new commercial fish strains characterized by high performance and a short generation time, for the Chinese market. Here, five strains - Bohai, Denmark, Donaldson, Norway, and California-of rainbow trout were used in a complete diallel cross, along with self-breeding within each strain, to estimate general combining ability; specific combining ability (SCA); and linebred, maternal, and reciprocal effects. These strains were defined based on their location of origin; the Bohai strain was domesticated and has been maintained since 1959 by the Bohai cold-water fish experimental station in China. Applying univariate and multivariate genetic analyses for body weight using the data set from this complete diallel cross experiment, we found that the cross combination with the Donaldson strain exhibited the most positive growth performance, whereas the Bohai female x Donaldson male cross was the highest performing cross combination in the experiment. Multiple significance tests showed that 40% (4 of 10) of the significant SCA based on univariate analyses (P < 0.05) were not significant based on multivariate analyses (P > 0.05). These results suggested that multivariate genetic analyses may provide more reliable reference guidelines for decision making by managers of breeding programs.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序