Heterosis and heritability estimates for the survival of the Pacific white shrimp(Litopenaeus vannamei) under the commercial scale ponds

作     者：LU Xia LUAN Sheng CAO Baoxiang SUI Juan DAI Ping MENG Xianhong LUO Kun KONG Jie 

作者机构：Key Laboratory of Sustainable Utilization of Marine Fisheries Resources of Ministry of Agriculture Yellow Sea Fisheries Research Institute Chinese Academy of Fishery Sciences Laboratory for Marine Fisheries Science and Food Production Processes Qingdao National Laboratory for Marine Science and Technology 

基　　金：The National Natural Science Foundation of China under contract No.31302179 the Taishan Scholar Program for Seed Industry the Introduction of International Advanced Agricultural Science and Technology Plan under contract No.2016-X39 the Special Fund for Basic Scientific Research Business of Central Public Research Institutes under contract No.2015B04XK01 China Postdoctoral Science Foundation under contract No.2015M572095 Qingdao Scientific Research Foundation under contract No.14-2-4-52-jch5 Jiangsu Province Science and Technology Support Project under contract No.BE2014414 

出 版 物：《Acta Oceanologica Sinica》 (海洋学报（英文版）)

年 卷 期：2017年第36卷第2期

页      码：62-68页

摘      要：The aim of the present study is to detect the potential of the base population from diallel crosses of eight introduced strains of the Pacific white shrimp（Litopenaeus vannamei） for improving the yield. Heterosis and heritability were estimated for pond survival at commercial farm conditions for the base population that included 207 full-sib families from a nested mating design by artificial insemination. Among all the hybrids,the heterosis ranged from –11.37%（UA1×UA2） to 20.53%（UA3×SIN） with an average of 0.953%. The results showed that more than half of the hybrids（51.85%） have negative heterosis for survival rate, but most of the hybrids with positive heterosis have high estimates. The high proportion of negative heterosis for survival rate reminders us that the survival trait also should be considered in the crossbreeding program to avoid yield decrease. However, high positive heterosis manifested in most of the hybrids for survival indicates the usefulness of these hybrids for improving the survival to obtain higher yield by crossbreeding in this breeding program. The heritability estimate for pond survival was 0.092±0.043 when genetic groups were included in the pedigree, and it was significantly different from zero（P〈0.05）. The results from this study also indicated that significant improvement for survival is possible through selection in L. vannamei.

主 题 词：heterosis heritability genetic group pond survival Pacific white shrimp Litopenaeus vannamei 

学科分类：0908[0908] 09[农学] 

核心收录：

D　O　I：10.1007/s13131-016-0942-6

馆 藏 号：203215936...