水产科技情报2024，Vol.51Issue(3)：137-143,7.DOI:10.16446/j.fsti.20231100112
非直接选育对瓯江彩鲤形态性状的影响
Effect of indirect breeding on morphological characters in Oujiang color common carp
摘要
Abstract
The body weight usually used as a targeted trait in fish breeding practices,but the morphological traits are always affected by indirect-breeding because of their correlation with body weight.In this work,five breeding strains of Oujiang color common carp(Cyprinus carpio var.color),namely Quanhong,Dahua,Mahua,Fenyu and Fenhua,selected by body weight and coloration for 11 generations and their foundation population were used to analyze effect of indirect-breeding on the morphological trains.The one-way ANOVA indicated that 16-21 morpho-logical traits performed significant difference between the five breeding strains and the foundation population(P<0.05)within 25 investigated traits.The difference multiple analysis found that two morphological traits were signi-ficantly up-regulated in the five breeding strains,and one morphological strain was significantly down-regulated in the foundation population.The principal component analysis showed that all the five breeding strains could be clearly distinguished from the foundation population.The cluster analysis showed that all the individuals of the foundation population were clustered into one branch,which was far away from the five breeding strains.The dis-crimination accuracy between the breeding strains and the foundation population reached 100%by the discriminant analysis.However,the above analyses showed there were lowly morphological difference and difficult discrimination among the five breeding strains.It could be concluded that the indirect-breeding process has made significant effect on the morphological traits in Oujiang color common carp.关键词
瓯江彩鲤/选育群体/奠基群体/多元统计分析/形态差异Key words
Oujiang color common carp/selective breeding population/foundation population/multivariate sta-tistical analysis/morphological difference引用本文复制引用
王芙燕,柯景,陈晓雯,王军,王成辉..非直接选育对瓯江彩鲤形态性状的影响[J].水产科技情报,2024,51(3):137-143,7.基金项目
国家自然科学基金项目(32172959). （32172959）
