Correlation and path analysis ofmain econom ic traits in w ild population of clam Dosinia corrugate
WANG Cheng-dong1,NIE Hong-tao1,2,LU Yao1,ZHAO Li-qiang1,SONG Ya-ya1,YAN Xi-wu1
1.Engineering Research Center of Shellfish Culture and Breeding in Liaoning Province,Dalian Ocean University,Dalian 116023,China;2.Key Laboratory of Mariculture&Stock Enhancement in North China's Sea,Ministry of Agriculture,Dalian Ocean University,Dalian 116023,China
Abstract: The effects of phenotypic morphometric traits attributes on weight traitswere analyzed in 125 samples of wild clam Dosinia corrugate randomly selected from Zhuanghe,Dalian in November,2013 by correlation analysis, path analysis and regression analysis to ascertain the optimal and measurable indices used in artificial breeding of the clam.The morphometric traits and weight traits were measured including shell length(SL),shell height (SH),shellwidth(SW),distance from apex of shell to shell front part(a),distance from apex of shell to the anterior to shell(b),ligament length(c),live body weight(W),soft body weight(MW)and total body weight (Sw).Itwas found that therewas very significant difference in the correlation coefficient between the various characters in the clam(P＜0.01).Shell length(SL)and shell height(SH)showed the predominant direct effect and determinacy on the live body weight(W),soft body weight(MW)and total body weight(Sw)(0.648).The phenotypic traits of characters and the optimal regression equation were established in the clam by stepwise regression method.The findings provide theoretical basis for the breeding and selection breeding of D.corrugate.
王成东, 聂鸿涛, 鹿瑶, 赵力强, 宋亚亚, 闫喜武. 薄片镜蛤野生群体主要经济性状间的相关性及通径分析[J]. 大连海洋大学学报, 2015, 30(4): 380-385.
WANG Cheng-dong, NIE Hong-tao, LU Yao, ZHAO Li-qiang, SONG Ya-ya, YAN Xi-wu. Correlation and path analysis ofmain econom ic traits in w ild population of clam Dosinia corrugate. Journal of Dalian Ocean University, 2015, 30(4): 380-385.
2015, Vol. 30 
