不同性别梨形环棱螺形态性状对体质量性状影响效果分析  

Analysis of effect of morphological traits on body weight of male and female pear-shaped ringed edge snail Bellamya purificata

作　　者：吴佳倩 周康奇 张彩群 韦小凯 叶华 彭金霞 林勇 覃俊奇 陈忠 罗辉 韦嫔媛 何苹萍 潘贤辉 WU Jiaqian;ZHOU Kangqi;ZHANG Caiqun;WEI Xiaokai;YE Hua;PENG Jinxia;LIN Yong;QIN Junqi;CHEN Zhong;LUO Hui;WEI Pinyuan;HE Pingping;PAN Xianhui(College of Fisheries,Southwest University,Chongqing 402460,China;Guangxi Key Laboratory of Aquatic Genetic Breeding and Healthy Aquaculture,Guangxi Zhuang Autonomous Region Academy of Fishery Sciences,Nanning 530021,China)

机构地区：[1]西南大学水产学院,重庆402460 [2]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,广西南宁530021

出　　处：《大连海洋大学学报》2024年第4期622-633,共12页Journal of Dalian Ocean University

基　　金：国家重点研发计划项目(2022YFD2400700);广西创新驱动发展专项资金项目(AA17204080-5);广西特色淡水鱼产业创新团队(nycytxgxcxtd-2021-08);科技先锋队“强农富民”“六个一”专项行动(桂农科盟201410);广西农业科技自筹资金项目(Z2022208,Z2022210,Z2022215);广西壮族自治区重点实验室自主研究项目(2023-A-01-05,2023-A-01-04)。

摘　　要：为探究雄、雌梨形环棱螺(Bellamya purificata)形态性状与体质量性状的相关性,从广西南繁水产良种基地采集了1007只梨形环棱螺,鉴定性别并测量其体质量、壳宽、壳高等11个性状,并对其进行相关分析、通径分析及多元回归分析。结果表明:梨形环棱螺各形态性状与各质量性状的相关性均达到极显著性水平(P<0.05);雄性、雌性梨形环棱螺全湿质量均主要受到壳高影响,通径系数均为0.927;雄性梨形环棱螺的软体质量主要受壳高影响(0.904),而雌性主要受壳宽影响(0.899);雄性梨形环棱螺肌肉质量主要受体螺层高的影响(0.899),雌性主要受到壳宽、壳口宽、体螺层高、螺旋部高的共同影响;壳高对雄、雌梨形环棱螺全湿质量和雄螺软体质量的单独决定系数最大,分别为0.489、0.281、0.561;壳宽对雌性梨形环棱螺软体质量、肌肉质量单独决定系数最大,分别为0.190、0.080;体螺层高对雄性梨形环棱螺的肌肉质量单数决定系数最大,为0.601。研究表明,雄、雌梨形环棱螺的全湿质量、软体质量、肌肉质量均具有良好的选育潜力;在选育更高全湿质量、软体质量时,应选择壳高作为关键形状;当肌肉质量作为选育目标时,雄螺应以体螺层高为主要选择性状,雌螺则应综合考虑壳宽、壳口宽、体螺层高的影响。本研究通过逐步多元回归对雄、雌梨形环棱螺的全湿质量、软体质量、肌肉质量建立了较优的方程式,为后续的梨形环棱螺良种选育提供了重要参考依据。To investigate the correlation between morphological traits and body weight in male and female pear-shaped ringed edge snail Bellamya purificata,11 traits including body weight,shell width and shell height were measured in 1007 snail samples collected from Guangxi Nanfan Aquatic Breeding Base after sex identification and the correlation among the morphological traits was analyzed by trail analysis and multiple regression analysis.The results showed that there was significant correlation between each morphological trait and each quality trait(P<0.05).The body weight of both male and female snails was mainly affected by shell height,with a flux coefficient of 0.927.The soft body weight was primarily affected by shell height(0.904)in male snail,and by shell width(0.899)in females.Muscle weight was found to be largely influenced by the height of the body snail layer(0.899)in male snails,and by the combined effect of shell width,aperture width,body whorl height,and the spiral height in females.The maximal individual coefficient of determination for body weight of female(0.489)and male(0.281)and soft body weight of male(0.561)was observed in shell height.There were the maximal individual coefficient of determination for soft weight(0.190)and muscle weight(0.080)in female snails in shell width.In summmary,the body weight,soft weight,and muscle weight of male and female snails were shown to have good potential for selection.Shell height should be selected as a key auxiliary selection trait when selecting for higher body weight and soft weight.When muscle weight is used as a selection target,body snail layer height should be used as the main selection trait in male snails,while the effects of shell width,aperture width,and body whorl height should be considered in female snails.In this study,a better equation was established by stepwise multiple regression for body weight,soft body weight,and muscle weight of male and female snails,which provides an important reference basis for the subsequent selection of good pear-shape

关 键 词：梨形环棱螺 形态性状 通径分析 回归分析 

分 类 号：S917.4[农业科学—水产科学]