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动物学报52(3):575—584,2006 ActaZoologicaSinica 中国明对虾AFLP分子标记遗传连锁图谱的构建* 王伟继'2*孔杰董世瑞,2栾生,2王清印 1.中国水产科学研究院黄海水产研究所,山东青岛266071 2.中国海洋大学生命与科学技术学部,山东青岛266003 摘要以中国明对虾抗WSSV(白斑综合症病毒,WhiteSpotSyndromeVirus)选育群体第四代为母本,野生 中国明对虾为父本,采用单对杂交方式产生F。代,F。代个体姊妹交产生F2代共42个个体为做图群体。62对 AFLP选择性引物组合共产生529个分离位点,符合1:1孟德尔分离类型位点共253个,3:1孟德尔分离类型位 点共276个。利用拟测交理论分别构建中国明对虾雌虾、雄虾的遗传连锁图谱,利用F2自交模型构建共同的 AFLP分子标记连锁图谱。三张连锁图上分别有31、25和44个连锁群,图谱分辨率为分别为2.4cM、2.4cM 和2.1cM。标记间隔距离分别为12.20cM、11.45cM和11.12cM图谱覆盖率分别达到50.21%、51.93%和 48.08%。能够基本满足进行QTL(数量性状位点,QuantitativeTraitLocus)定位的需要。将该图谱和其他对虾 类遗传连锁图谱进行了比较分析,探讨了利用相关分子标记将已有图谱进行整合的可能[动物学报52(3):575— 584,2006]。 关键词中国明对虾AFLP分子标记遗传连锁图谱 GeneticmappingoftheChineseshrimpFenneropenaeuschinensis usingAFLPmarkers WANGWei—Ji,2,KONGJie,DONGShi—Rui,一,LUANSheng, WANGQing—Yin 1.YellowSeaFisheriesResearchInstitute,ChineseFisheryScienceAcademy,Qingdao266071,Shandong,China 2.CollegeofLifeScienceandTechnology,OceanUniversityofChina,Qingdao266003,Shandong,China AbstractAmplifiedFragmentLengthPolymorphism(AFLP)markerswereusedtoconstructthe1inkagemapofFen— neropenaeuschinensis.Wesampledmaterna1individua1fromthefourthsuccessivelyselectedgenerationofdiseaseresis— tancepopulationofF.chinensisandpaterna1individua1fromwildpopulation.respectively.Artificia1inseminationwas usedtogenerateFlfamily;F2familiestotally42bodiescamefromsisterhoodintercrossbetweenFlfamilies.Sixty—two primercombinationsproduced529segregatingbands;ofwhich253segregateina1:1modeland276ina3:1mode1. Thefemaleandmale1:1ratiomakerswereusedtoconstructtherespective1inkagebasedonthepseudo-testcrossstrate— gY.Thefemalelinkagemapcontained94segregatingmarkers,whichwerelinkedin31linkagegroups(includinglink— agecouples),covering51.39%ofF.chinensisgenomewiththeintervalof12.20cM.Themalelinkagemapcontained 81segregatingmarkers,whichwerelinkedin25linkagegroups,covering50.21%ofF.chinensiswiththeintervalof 11.45cM.The276markersina3:1modelwereusedtoconstructthecommonF.chinensislinkagemapbasedonF2in— tercrossmode1strategy.Thecommon1inka