斑节对虾耐高温性状的遗传力评估

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中图分类号：S917.4 文献标志码：A 文章编号：1004-6755（2025）09-0004-05

1.ShenzenBaseofSouthChinaSeaFisheriesResearchInstitute，ChineseAcademyofFisherySciences，Shenzhen518121，China 2.College of Fisheries and Life Science，Shanghai Ocean University，Shanghai 2O13o6，China； 3.South China Sea Fisheries Research Institute，Chinese Academyof Fishery Sciences，Key Laboratory of

SouthChinaSeaFisheryResourcesExploitation&Utlization，MinistryofAgricultureandRuralAfairs，Guangzhou5l03oohina）

Abstract：This study evaluated heat tolerance variations and genetic parameters among 2O families of Penaeus monodon through acute high-temperature stress tests. The experiment maintained a constant 38°C （heating rate ，recorded individual survival times，and analyzed data using a single一trait animal model. The results showed： Significant inter-family variation in heat tolerance （ P<0.000 1 ），median lethal time（LT50）of 105h and survival time range from 48 to 150h ；heritability estimate for high-temperature tolerance was 0.20±0.02（Z=10 ， P<0.01 ），falling within the moderate heritability range，indicating selective breeding potential for this trait.

Key words：Penaeus monodon ; high-temperature stress; survival time; heritability

近年来，全球气候变暖的趋势日益显著，夏季高温天气频繁，对水产养殖的生产安全提出了挑战[1]。（剩余8730字）