不同月龄三角帆蚌幼蚌内外壳色相关性分析  

Correlation analysis between inner shell color and outer shell color of juvenile mussels at different month ages in Hyriopsis cumingii

作　　者：孙朝虎 白志毅[1,2] 张朝晖 蒋军[4] 陈焕根 吴敏[4] 李家乐[1,2] SUN Chaohu;BAI Zhiyi;ZHANG Chaohui;JIANG Jun;CHEN Huangen;WU Min;LI Jiale(Key Laboratory of Freshwater Aquatic Genetic Resources,Ministry of Agriculture and Rural Affairs,Shanghai Ocean University,Shanghai 201306,China;Shanghai Engineering Research Center of Aquaculture,Shanghai Ocean University,Shanghai 201306,China;Fisheries Technology Extension Center of Jiangsu Province,Nanjing 210036,Jiangsu,China;Fisheries Technology Extension Center of Anhui Province,Hefei 230601,Anhui China)

机构地区：[1]上海海洋大学农业农村部淡水水产种质资源重点实验室,上海201306 [2]上海海洋大学上海水产养殖工程技术研究中心,上海201306 [3]江苏省渔业技术推广中心,江苏南京210036 [4]安徽省水产技术推广总站,安徽合肥230601

出　　处：《上海海洋大学学报》2021年第1期58-64,共7页Journal of Shanghai Ocean University

基　　金：国家重点研发计划(2018YFD0901406);现代农业产业技术体系建设专项资金(CARS-49);国家自然科学基金(31872565);上海市优秀学术带头人计划(19XD1421500)。

摘　　要：供片贝内壳色显著影响所育珍珠颜色,成为珍珠贝重要遗传改良性状,但内壳色度量难度较大,严重限制了选育效率。选用4~8月龄紫色品系和白色品系三角帆蚌幼蚌为实验材料,评价三角帆蚌幼蚌内壳色与外壳色的相关性,结果表明:紫色品系三角帆蚌同时期内外壳颜色参数a^(*)最大相关系数为0.537(P<0.01),出现在6月龄,颜色参数b^(*)最大相关系数为0.724(P<0.01),出现在5月龄;紫色品系三角帆蚌5月龄外壳颜色参数a^(*)和4月龄外壳颜色参数b^(*)分别与8月龄内壳颜色参数呈现最大相关性,分别为0.414(P<0.01)和0.327(P<0.01);白色品系三角帆蚌5月龄外壳颜色参数a^(*)和b^(*)与8月龄内壳颜色参数a^(*)和b^(*)均呈现最大相关性,分别为0.424(P<0.01)和0.326(P<0.05)。综合上述结果,5月龄是通过三角帆蚌外壳色间接评价内壳色的最佳时期。揭示了三角帆蚌幼蚌外壳色与内壳色具有相关性,对指导三角帆蚌内壳色早期选育具有重要意义。The inner shell color of donor Hyriopsis cumingii,which affects the color of pearls obviously,has become an important trait for genetic improvement of pearl mussels.However,the inner shell color of the mussels is difficult to measure.The measurement difficulties decreased the efficiency of selective breeding.In this study,the 4-8 month-old mussels from purple and white strains were selected for evaluating the correlation between the inner shell color and the outer shell color of mussels.The results are as follows:In purple strain,at 6 months old,the maximum correlation coefficient in a^(*)between outer shell and inner shell,0.537,appeared(P<0.01).At 5 months old,the maximum correlation coefficient in b^(*)between outer shell and inner shell,0.724,appeared(P<0.01).For a^(*),the maximum correlation coefficient between the outer shell of 5-month-old mussels and inner shell of 8-month-old mussels,0.414,appeared(P<0.01).For b^(*),the maximum correlation coefficient between the outer shell of 4-month-old mussels and inner shell of 8-month-old mussels,0.327,appeared(P<0.01).In white strain,for a^(*)and b^(*),the maximum correlation coefficients between the outer shell of 5-month-old mussels and inner shell of 8-month-old mussels,0.424(P<0.01)and 0.326(P<0.05),appeared.In summary,5-month-old is the best time to indirectly evaluate the inner shell color by measuring outer shell color in Hyriopsis cumingii.In this study,we revealed that there is correlation between outer shell color and inner shell color in juvenile Hyriopsis cumingii.The result is of great significance to instruct early selection on inner shell color in Hyriopsis cumingii.

关 键 词：淡水珍珠贝 三角帆蚌 内壳色 外壳色 相关性 早期选育 

分 类 号：S966.22[农业科学—水产养殖]