香螺形态性状与质量性状的相关性及通径分析  

Correlation and Path Analysis of Relationship Between Morphological and Qualitative Traits in Whelk Neptunea cumingii

作　　者：王朔 李华琳[1,2] 何心怡 滕炜鸣[1,2] 刘海娇 李大成[1,2] 于佐安[1,2] 王庆志[1,2,3] Wang Shuo;Li Hualin;He Xinyi;Teng Weiming;Liu Haijiao;Li Dacheng;Yu Zuoan;Wang Qingzhi(Dalian Key Laboratory of Genetic Resources for Marine Shellfish,Liaoning Ocean and Fisheries Science Research Institute,Dalian 116023,China;Key Laboratory of Protection and Utilization of Aquatic Germplasm Resource of Ministry of Agriculture and Rural Affairs,Liaoning Ocean and Fisheries Science Research Institute,Dalian 116023,China;Laboratory of Dalian Jinshiwan,Dalian 116034,China;College of Fisheries and Life Science,Dalian Ocean University,Dalian 116023,China;Dalian Changhai Yide Aquaculture Company Limited,Dalian 116001,China)

机构地区：[1]辽宁省海洋水产科学研究院大连市海产贝类种质资源创新利用重点实验室,辽宁大连116023 [2]辽宁省海洋水产科学研究院农业农村部水产种质资源保护与发掘利用重点实验室,辽宁大连116023 [3]大连金石湾实验室,辽宁大连116034 [4]大连海洋大学水产与生命学院,辽宁大连116023 [5]大连长海益得水产养殖有限公司,辽宁大连116001

出　　处：《中国海洋大学学报(自然科学版)》2025年第5期29-37,共9页Periodical of Ocean University of China

基　　金：大连市科技创新基金项目(2021YF16SN015,2021JB11SN035);辽宁省海洋经济发展专项(202222);国家重点研究发展计划项目(2022YFD2400305);辽宁省农业科学院学科建设计划项目(2022DD268339);现代农业产业技术体系专项(CARS-49)资助。

摘　　要：本文为明确中国黄海北部地区香螺(Neptunea cumingii)自然群体的形态性状对质量性状的影响,测量了香螺的壳高X_(1)、壳宽X_(2)、壳口高X_(3)、壳口宽X_(4)、体螺层高X_(5)、体螺层宽X_(6)6个形态性状和体质量M_(1)、软体部质量M_(2)2个质量性状,采用相关性分析、通径分析和多元回归分析等方法研究了香螺形态性状对其质量性状的影响。研究表明:香螺各性状间均呈极显著相关(P<0.01),体螺层宽X_(6)与体质量M_(1)和软体部质量M_(2)的相关系数均最高;体螺层宽X_(6)对体质量M_(1)和软体部质量M_(2)的直接作用均最大,分别为0.649和0.559;壳宽X_(2)对体质量M_(1)的间接作用最大(0.626),壳口宽X_(4)对软体部质量M_(2)的间接作用最大(0.606)。经多元回归分析,建立了以体质量M_(1)为因变量、形态性状为自变量的最优回归方程:M_(1)=-145.039+0.649 X_(6)+0.197 X_(2)+0.170 X_(3)(R^(2)=0.879);建立了以软体部质量M_(2)为因变量、形态性状为自变量的最优回归方程:M_(2)=-53.492+0.559 X_(6)+0.240 X_(3)+0.172 X_(4)(R^(2)=0.786)。研究结果表明,以质量性状为选育香螺目标性状时,应将体螺层宽作为首要形态性状进行选择;以体质量为目标性状时应协同选择壳宽性状,以软体部质量作为目标性状时应协同选择壳口宽性状。本研究可为香螺的生长、人工繁育和遗传育种等提供理论依据。In order to determine the influence of morphological traits on the quality traits of natural population of the whelk Neptunea cumingii in northern Yellow Sea,China,six morphological traits(shell height X_(1),shell width X_(2),shell aperture height X_(3),shell aperture width X_(4),body whorl height X_(5),body whorl width X_(6))and two quality traits(body mass M_(1) and soft tissue mass M_(2))of N.cumingii were measured.Correlation analysis,path analysis and multiple regression analysis were used to study the influence of morphological traits on the quality traits.The results showed that there were significant correlations among all the traits(P<0.01).The body whorl width(X_(6))had the maximum correlation with body mass and soft tissue mass.The body whorl width(X_(6))had the maximal direct effect on both body mass and soft tissue mass.The direct effect of body whorl width(X_(6))on body mass and soft tissue mass was 0.649 and 0.559,respectively.Shell width(X_(2))had the maximal indirect effect on body mass(0.626),and shell aperture width(X_(4))had the maximal indirect effect on soft tissue mass(0.606).Stepwise regression analysis established the optimal regression equation with body mass(M_(1))as dependent variable and morphological traits as independent variable,which was M_(1)=-145.039+0.649 X_(6)+0.197 X_(2)+0.170 X_(3)(R^(2)=0.879).Stepwise regression analysis established the optimal regression equation with soft tissue mass(M_(2))as dependent variable and morphological traits as independent variable,which was M_(2)=-53.492+0.559 X_(6)+0.240 X_(3)+0.172 X_(4)(R^(2)=0.786).The results showed that when mass traits were selected as the target traits,the body whorl width(X_(6))should be selected as the primary morphological traits.Shell width(X_(2))should be selected cooperatively when body mass is the target trait,and shell aperture width(X_(4))should be selected cooperatively when soft tissue mass is the target trait.In conclusion,our findings can provide a scientific reference for the growth,artificial culture an

关 键 词：香螺 形态性状 质量性状 通径分析 

分 类 号：S917.4[农业科学—水产科学]