Marine biology

A diallel analysis on growth traits in shrimp Litopenaeus vannamei

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  • 1. CAS Key Laboratory of Marine Bio-resources Sustainable Utilization, Key Laboratory of Marine Biological Application of Guangdong Province, South China Sea Institute of Oceanology, CAS, Guangzhou 510301, China; 2. Life Science College of Hengshui University, Hengshui 053000, China; 3. Zhanjiang City Dongfang Industrial Co, Ltd., Zhanjiang 524008, China
林红军(1982—), 男, 河北省邯郸市人, 硕士研究生, 主要从事对虾遗传育种研究。E-mail: dongyangsea@163.com

Received date: 2009-11-15

  Revised date: 2010-06-04

  Online published: 2010-12-15

Supported by

国家“863”计划子课题(2006AA10A406, 2010AA10A401); 国家科技支撑计划子课题(2006BAD01A1303); 广东省海洋渔
业科技推广专项(A200899A02)

Abstract

The authors analyzed the growth and survival of the first generation of Litopenaeus vannamei after crossing within and between imported shrimp individuals (P♂, P♀) and selected individuals (H♂, H♀) using complete diallel crosses to set up four combinations, PP(P♀×P♂), PH(P♀×H♂), HP(H♀×P♂) and HH(H♀×H♂). The results showed that survival rate was in the order of HH>HP>PH>PP, and the survival heterosis appeared in PH, with average survival heterosis of (27.72?11.88)% in the young stage and 30.50 at the 90th day. In the early growth stage (the first 30 days), the average body length and weight were both sequenced as HP> PH> HH> PP, while in the late growth, as PP> HP> PH> HH. The growth heterosis was found in body length and weight. The values of body length heterosis were 24.00%, 13.71%, 2.55%, and 2.79%; while the values of body weight heterosis were 112.46%, 54.06%, 8.16%, and 12.48% at the 10th, 30th, 60th and 90th days. In conclusion, the growth and survival traits of hybrids offspring crossing selection individuals as male parents and imported individuals as female parents will be improved significantly.

Cite this article

LIN Hong-jun,SHEN Qi,ZHANG Lü-ping,HU Chao-qun,LIANG Li-qing . A diallel analysis on growth traits in shrimp Litopenaeus vannamei[J]. Journal of Tropical Oceanography, 2010 , 29(6) : 51 -56 . DOI: 10.11978/j.issn.1009-5470.2010.06.051

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