中国渔业质量与标准2024，Vol.14Issue(5)：17-25,9.DOI:10.3969/j.issn.2095-1833.2024.05.003
北部湾海域不同地理群体西施舌表型性状的相关性与通径分析
Correlation analysis and path analysis of the phenotypic traits of Coelomactra antiquata from different geographical populations in Beibu Gulf
摘要
Abstract
Coelomactra antiquata were collected from four different geographical groups in the Beibu Gulf,including Zhanjiang,Beihai,Dongxing and Fangchenggang,to measure shell length(SL),shell height(SH),shell width(SW),leading edge length(AL),trailing edge length(GL),living body mass(BM),shell mass(SM)and soft part mass(SPM).Using correlation analysis,path analysis and multiple regression analysis methods to study the rela-tionship between phenotypic traits and soft part mass,while calculating the fresh meat yield of Coelomactra antiquata in each population.The experimental results are as follows:The coefficient of variation for various phenotypic traits of Coelomactra antiquata varies among different geographic populations.The three populations of Zhanjiang,Beihai,and Dongxing have the lowest coefficient of variation in shell length:4.952,5.822,and 2.365,respectively;The coeffi-cient of variation of shell quality in Zhanjiang population is the highest(23.297);The coefficient of variation of soft-ware quality in the Beihai population is the highest(21.977);The coefficient of variation of live mass in Dongxing and Fangchenggang populations is the highest,at 10.885 and 19.223,respectively;The coefficient of variation for the shell height of the Fangchenggang population is the smallest(4.877);the coefficient of variation of living body mass of Fangchenggang population is the highest(19.223),and the coefficient of variation of shell height is the low-est(4.877).Comparing the average fresh meat yield of Coelomactra antiquata among four different geographical groups,the Fangchenggang group had the highest fresh meat yield(44.982%),while the Dongxing group had the lowest fresh meat yield(36.713%).There are significant correlation coefficients(P＜0.05)or extremely significant correlation(P＜0.01)between the various traits of Coelomactra antiquata in different geographical populations.The shell length and shell width of Coelomactra antiquata in Zhanjiang population are the main phenotypic traits that affect the soft part mass.The shell height and leading edge length of the Beihai population are the main phenotypic traits that affect the mass of the soft part mass.The trailing edge length of the Dongxing population is the main phenotypic trait that affects the soft part mass.The shell length of the Fangchenggang population is the main phenotypic trait that af-fects the soft part mass.After excluding phenotypic traits with insignificant partial regression coefficients and retaining phenotypic traits that have a significant impact on soft part mass,the optimal regression equation was established:Zhanjiang population,mZJ=-14.037+0.246SL+0.296SW,Beihai group,mBH=-51.555+1.740SH-0.723AL,Dongxing group,mDX=-15.597+0.668GL,Fangchenggang group,mFCG=-51.500+0.955SL.This study provides a theoretical basis for artificial culture,biological research,and selective breeding of Coelomactra an-tiquata.[Chinese Fishery Quality and Standards,2024,14(5):17-25]关键词
西施舌/地理群体/相关分析/通径分析/决定系数分析Key words
Coelomactra antiquata/geographical population/correlation analysis/path analysis/determination coeffi-cient analysis分类
农业科技引用本文复制引用
张方琪,陈嘉娴,候勇康,王丽君,廖韬梁,栗志民..北部湾海域不同地理群体西施舌表型性状的相关性与通径分析[J].中国渔业质量与标准,2024,14(5):17-25,9.基金项目
广东省教育厅项目(2020ZDZX1031) （2020ZDZX1031）
