芙蓉鲫(芙蓉鲤♀×红鲫♂)及其原始亲本的形态学分析

Morphology analysis between Furong crucian carp(Cyprinus capio furong.♀×Carassius auratusred var.♂) and the original brood stocks

本研究随机采集芙蓉鲫及其原始亲本(芙蓉鲤、红鲫、散鳞镜鲤、兴国红鲤),测定了7项可数性状和12项可量性状,研究芙蓉鲫与其原始亲本之间的表型差异。结果表明:芙蓉鲫(Cyprinus capiofurong.♀×Carassiusauratusred var.♂)可数性状稳定,介于父母本之间,可量性状中芙蓉鲫有5项偏向父本,3项偏向母本、4项超父母本。聚类分析显示芙蓉鲫可量性状更接近于父本红鲫,而与另3种亲本差异较远。判别分析结果也显示芙蓉鲫与红鲫形态更为接近,各组判别准确率依次为芙蓉鲫100%,红鲫96%,兴国红鲤87%,散鳞镜鲤81.3%,芙蓉鲤73.1%。

This research investigated the morphological variations between Furong crucian carp （ hybrid of Furong carp ♀ Red crucian carp ♂） and the original brood stocks （ Red crucian carp, Furong carp, Scattered mirror carp and Xingguo red carp） by measuring 7 meristic and 12 metric characters. Chi-square analysis of meristic characters indicated that there were no significant differences among these five kinds of experimental fishes. The meristic characters of Furong crucian carp were intermediate between Red crucian carp and Furong carp. Five metric characters of Furong crucian carp were biased to father, and 3 characters were biased to mother, 4 characters were beyond parents. Furthermore, the results of cluster analysis of metric characters showed that there were some differences among these five fishes except between Furong carp and Xingguo red carp. Discriminant analysis indicated that there were significant differences among these five fishes. The identification accuracy was ranked as Furong crucian carp （ 100% ） 〉 Red crucian carp （96%） 〉 Xingguo red carp （87%） 〉 Scatterd mirror carp （81.3%） 〉 Furong carp （73. 1% ）. The results concluded that the morphology of Furong curcian carp was biased to father.