海洋科学2016，Vol.40Issue(1)：25-31,7.DOI:10.11759/hykx20141009003
3个凡纳滨对虾引进群体对温度和盐度耐受力的配合力分析
Analysis of combining ability of survival of importedLito-penaeus vannamei populations under temperature and salin-ity stress
摘要
Abstract
To select the optimal combination of parents for artificial breeding, three introduced populations ofLi-topenaeus vannameiwere used to establish nine inbred and hybridized populations by complete diallel crosses, and their temperature and salinity tolerance were compared. Significant differences in temperature and salinity tolerance were observed among the nine populations. Mid-parent heterosis and heterobeltiosis for tolerance tohigh tempera-ture were –17.71%–52.95% and –30.07%–37.96%, respectively, in which the UM and UH groups had the highest mid-parent heterosis (38.61%). Mid-parent heterosis and heterobeltiosis for tolerance tolow temperature were –22.04%–77.03% and –33.93%–31.17%, respectively, in which the UM and TZ groups had the highest mid-parent heterosis (60.85%). Mid-parent heterosis and heterobeltiosis for tolerance tohigh salinity were –39.41%–76.96% and –42.12%–19.07%, respectively, in which the UM and TZ groups had the highest mid-parent heterosis (60.85%). Mid-parent heterosis and heterobeltiosis for tolerance tolow salinity were –44.89%–37.05% and –45.68%–28.21%, respectively, in which the UM and TZ group had the lowest mid-parent heterosis (–9.855%). The general combining ability of parents and special combining ability of hybrid combinations influenced the tolerance performance of the hybrid offsprings; of these, the UM group had the highest general combining ability for resistance traits of high and low temperature, while the TZ group had the highest general combining ability for resistance traits of high and low salinity. The specific combining ability analysis showed that UM×UH, with a stronger, non-additive effect and hybrid superiority, was a strong hybrid combination and could be used as a candidate material for further family selection.关键词
凡纳滨对虾(Litopenaeus vannamei)/温度/盐度/杂种优势/配合力Key words
Litopenaeus vannamei/temperature/salinity/heterosis/combining ability分类
生物科学引用本文复制引用
胡志国,刘建勇,袁瑞鹏,张嘉晨..3个凡纳滨对虾引进群体对温度和盐度耐受力的配合力分析[J].海洋科学,2016,40(1):25-31,7.基金项目
广东省海洋渔业科技推广专项科技攻关与研发项目(A201208B05) （A201208B05）
广西科学研究与技术开发技术项目(桂科转12239002-3,桂科合14125007-2-9)@@@@Marine Fisheries Technology Program of Guangdong Prov-ince of China(No.A201208B05) （桂科转12239002-3,桂科合14125007-2-9）
Science Research and Technology De-velopment Program of Guangxi Province of China(No.12239002-3, No.14125007-2-9) （No.12239002-3, No.14125007-2-9）
