杂交黄颡鱼体色分化群体形态差异分析

doi:10.16378/j.cnki.1003-1111.20060

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Abstract In this study, 26 measurable traits were measured in two differential groups of hybrid yellow catfish Pelteobagrus fulvidraco ♀ × P. vachellii ♂ in order to analyze the morphological differences between two groups. Subsequent comparative analyses of the morphological characteristics were performed using the one-way analysis of variance, discriminant analysis, principal component analysis and cluster analysis. The results showed that 6 traits including adipose-caudal fin distance, caudal peduncle length, eye diameter, interorbital width, dorsal-fin spine length and pectoral-fin spine length were segregated significantly. Almost all individuals were divide into two groups using cluster analysis based on the morphological characters. The corrected eye diameter and caudal peduncle length were the most discriminative traits to differentiate these two groups. Significant negative correlation between caudal peduncle length and spine length was detected and significant positive correlation between eye diameter and interorbital width was detected. We inferred that the coevolution between different traits was of importance for the adaptation of yellow catfish. The finding provides novel insights into the breeding and identification of hybrid yellow catfish.

Key words： hybrid yellow catfish body color differentiation morphological difference multivariation analysis

Received: 31 March 2020

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	Articles by authors
	ZHOU Huaxing
	DUAN Guoqing
	HU Yuting
	WANG Huan
	JIANG He
	LING Jun
	PAN Tingshuang
	CHEN Xiaolei

Cite this article:

ZHOU Huaxing,DUAN Guoqing,HU Yuting, et al. Analysis of Morphological Differences between Differential Body Colors Groups of Hybrid Yellow Catfish[J]. Fisheries Science, 2021, 40(5): 726-732.

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https://www.shchkx.com/EN/10.16378/j.cnki.1003-1111.20060 OR https://www.shchkx.com/EN/Y2021/V40/I5/726

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