橄榄蛏蚌赣江群体数量性状的通径分析

doi:10.16378/j.cnki.1003-1111.2020.02.016

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Abstract Seven quantitative traits including shell length, shell width, shell height, body height, body weight, shell weight and soft part weight were measured in 40 wild shellfish Solenia oleivora collected from Poyang Lake randomly to analyze the correlation between quantitative traits and the main traits influencing soft part weight by correlation analysis, path analysis, multivariate regression analysis, and optimal regression equation. The results showed that the shellfish had 65.62% of dressing rate and very significant phenotypic correlation between various quantitative traits (P<0.01). Body weight, as the main factor, had the greatest direct effect on soft part weight, and the effects of shell length, shell width, shell height, body height and shell weight on soft part weight were mainly indirect through body weight, with the comprehensive determining effect of 96.08%, the most important factor affecting flesh weight and had breeding significance. The optimal regression equation of quantitative traits on soft part weight was expressed as: y=-18.548+0.690x₁-0.442x₂+6.804x₃, through stepwise regression analysis, where y is soft part weight (g), x₁ is body weight (g), x₂ is shell weight (g), and x₃ is body height (cm).

Key words： Solenia oleivora population in Ganjiang River quantitative trait path analysis

Received: 29 August 2018

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	Articles by authors
	ZHANG Genfang
	ZHANG Wenfu
	FANG Aiping
	YANG Shoubao

Cite this article:

ZHANG Genfang,ZHANG Wenfu,FANG Aiping, et al. Path Analysis of Quantitative Traits of Shellfish Solenaia oleivora Population in Ganjiang River[J]. Fisheries Science, 2020, 39(2): 271-276.

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https://www.shchkx.com/EN/10.16378/j.cnki.1003-1111.2020.02.016 OR https://www.shchkx.com/EN/Y2020/V39/I2/271

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