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中国农学通报 ›› 2017, Vol. 33 ›› Issue (32): 135-139.doi: 10.11924/j.issn.1000-6850.casb16100061

• 水产 渔业 • 上一篇    下一篇

梨形环棱螺3个群体形态性状与体质量的相关及通径分析

金武,马学艳,闻海波,邹军,薛婷,何义进   

  1. 中国水产科学研究院淡水渔业研究中心,中国水产科学研究院淡水渔业研究中心水产养殖室,中国水产科学研究院淡水渔业研究中心水产养殖室,南京农业大学渔业学院,中国水产科学研究院淡水渔业研究中心,中国水产科学研究院淡水渔业研究中心
  • 收稿日期:2016-10-17 修回日期:2017-01-16 接受日期:2017-02-04 出版日期:2017-11-27 发布日期:2017-11-27
  • 通讯作者: 何义进
  • 基金资助:
    江苏省水产三新工程项目(Y2014-038);国家基础性研究“淡水软体动物重要品种种质资源收集整理保存”(2002DEB10052);江苏省水产三 新工程重大项目(2014-09)。

Correlation and Path Analysis Between Morphology Traits and Body Weight of Bellamya purificata from Three Populations

  • Received:2016-10-17 Revised:2017-01-16 Accepted:2017-02-04 Online:2017-11-27 Published:2017-11-27

摘要: 为了探究梨形环棱螺各形态性状与体质量的相关性及影响体质量的因素组成,随机选取太湖野生群体、阳澄湖野生群体、江阴养殖群体共698个个体,测量梨形环棱螺壳高(SH)、壳宽(SW )、壳口高(AH)、壳口宽(AW)、体螺层高(BWH)、体质量(BW),并鉴定其性别,采用相关与通径分析方法分析不同群体梨形环棱螺形态性状对体质量的作用,为梨形环棱螺人工繁育和品系选育提供理论依据和测度指标。结果表明:不同群体的壳高、壳宽、壳口高、壳口宽、体螺层高、体质量及不同性别之间均存在显著性差异;决定系数分析表明:不同群体梨形环棱螺影响体质量的主要形态性状并不相同;但不同群体中壳高对体质量的相关系数和直接作用均最大,是影响体质量的主要因素。

关键词: SRAP分子标记, SRAP分子标记, 茄果类蔬菜, 航天诱变育种

Abstract: The study aims to clarify correlation between morphological traits and body weight of Bellamya purificata, and explore the factors affecting body weight. Totally 698 individuals were randomly sampled from Taihu Lake, Yangchenghu Lake and a cultured population in Jiangyin. Data of shell height (SH), shell width (SW), aperture height (AH), aperture width (AW), body whorl height (BWH), body weight (BW) and gender were collected. Correlation analysis and path analysis were conducted. The results showed that there were significant differences in SH, SW, AH, AW, BWH, BW and sex ratio among the three populations. Determinant coefficients showed that the main morphological traits affecting body weight were different among the three populations. However, SH was the factor having the strongest correlation and largest direct effect on body weight, i.e. SH was the main factor affecting body weight.