中华圆田螺形态性状对体质量的影响  

Effect Analysis of Morphological Traits on Body Weight of Cipangopaludina cathayensis

作　　者：龙柳平 潘贤辉 林勇 李哲 邹欣汐 覃俊奇 彭金霞 王大鹏 陈忠 黄姻 邓潜 周康奇 LONG Liuping;PAN Xianhui;LIN Yong;LI Zhe;ZOU Xinxi;QIN Junqi;PENG Jinxia;WANG Dapeng;CHEN Zhong;HUANG Yin;DENG Qian;ZHOU Kangqi(Guangxi Academy of Fishery Sciences/Guangxi Key Laboratory of Aquatic Genetics Breeding and Health Aquaculture/Guangxi Aquatic Breeding Base,Nanning 530021,China)

机构地区：[1]广西壮族自治区水产科学研究院/广西水产遗传育种与健康养殖重点实验室/广西水产良种繁育基地,广西南宁530021

出　　处：《河南农业科学》2024年第5期141-149,共9页Journal of Henan Agricultural Sciences

基　　金：国家重点研发计划项目(2022YF2400700);广西科技基地与人才项目(AD21220010);广西创新驱动发展专项(AA1720408);广西特色淡水鱼产业创新团队项目(nycytxgxcxtd-2021-08)。

摘　　要：为探究中华圆田螺(Cipangopaludina cathayensis)形态性状与体质量的关系,采集中华圆田螺共505只,并对其壳宽(Z_(1))、壳高(Z_(2))、壳口高(Z_(3))、壳口宽(Z_(4))、体螺层高(Z_(5))、螺旋部高(Z_(6))、倒数第二螺层宽(Z_(7))、倒数第二螺层高(Z_(8))和体质量(W)等9个体尺性状进行测量,通过统计分析、相关性分析、通径分析和回归分析,确定中华圆田螺对体质量影响较大的主要形态性状,并建立回归方程。结果显示,中华圆田螺体质量的变异系数为59.61%,其选育潜力较大;壳宽、壳高、体螺层高和倒数第二螺层宽与体质量的相关系数均较高(≥0.949)。通径分析和岭回归分析均表明,壳高对体质量直接作用最大(0.963,0.152),直接决定系数最高(0.927),其他性状与壳高对体质量的共同决定系数均较高,总决定系数达1.117。建立中华圆田螺体质量与各主要影响性状的最优多元回归方程:W=-24.346+0.214Z_(1)+0.148Z_(2)+0.123Z_(3)+0.306Z_(4)+0.188Z_(5)+0.083Z_(6)+0.383Z_(7)+0.882Z_(8),决定系数(R2)=0.943。回归方程的方差分析显示,其回归关系达到极显著水平(P<0.01)。综上,壳高是影响中华圆田螺体质量的最主要性状。To explore the relationship between morphological traits and body weight of Cipangopaludina cathayensis,a total of 505 C.cathayensis were collected,and their shell width(Z_(1)),shell height(Z_(2)),shell mouth height(Z_(3)),shell mouth width(Z_(4)),body snail layer height(Z_(5)),spiral height(Z_(6)),the penultimate snail layer width(Z_(7)),the penultimate snail layer height(Z_(8))and body weight(W)were measured.Through statistical analysis,correlation analysis,path analysis and regression analysis,the main morphological traits of C.cathayensis with greater influence on body weight were determined,and the regression equation was established.The results showed that the coefficient of variation of the body weight of C.cathayensis was 59.61%,and its breeding potential was great.The correlation coefficients of shell width,shell height,body snail layer height and the penultimate snail layer width with body weight were higher(≥0.949).Path analysis and ridge regression analysis showed that shell height had the greatest direct effect on body weight(0.963,0.152),and the direct determination coefficient was the highest(0.927).The co⁃determination coefficients of other traits and shell height on body weight were higher,and the total determination coefficient was 1.117.The optimal multiple regression equation of body weight and main influencing traits of C.cathayensis was established:W=-24.346+0.214Z_(1)+0.148Z_(2)+0.123Z_(3)+0.306Z_(4)+0.188Z_(5)+0.083Z_(6)+0.383Z_(7)+0.882Z_(8),R2=0.943.The analysis of variance of the regression equation showed that the regression relationship reached a very significant level(P<0.01).In summary,shell height is the most important trait affecting the body weight of C.cathayensis.

关 键 词：中华圆田螺 形态性状 体质量 通径分析 回归分析 

分 类 号：S917.4[农业科学—水产科学]