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热带海洋学报 ›› 2010, Vol. 29 ›› Issue (5): 132-135.doi: 10.11978/j.issn.1009-5470.2010.05.132cstr: 32234.14.j.issn.1009-5470.2010.05.132

• 海洋生物学 • 上一篇    下一篇

波纹巴非蛤Paphia undulata表型性状通径和回归分析

王庆恒, 邓岳文, 杜晓东   

  1. 广东海洋大学水产学院, 广东 湛江 524088
  • 收稿日期:2008-09-22 修回日期:2009-02-27 出版日期:2010-10-30 发布日期:2011-10-10
  • 通讯作者: 杜晓东, 教授。
  • 作者简介:王庆恒(1977—), 男, 四川省宜宾市人, 讲师, 硕士, 从事海洋无脊椎动物研究, E-mail: wangqingheng@163.com
  • 基金资助:

    农业部公益性行业(农业)科研专项经费(nyhyzx07-047); 广东海洋大学博士启动项目(E06031); 广东海洋大学重点学科
    建设项目(ZD2006002)

Path and regression analysis of the phenotypic characters of Paphia undulate

WANG Qing-heng, DENG Yue-wen, DU Xiao-dong   

  1. Fisheries College, Guangdong Ocean University, Zhanjiang 524025 China
  • Received:2008-09-22 Revised:2009-02-27 Online:2010-10-30 Published:2011-10-10
  • Contact: 杜晓东, 教授。
  • About author:王庆恒(1977—), 男, 四川省宜宾市人, 讲师, 硕士, 从事海洋无脊椎动物研究, E-mail: wangqingheng@163.com
  • Supported by:

    农业部公益性行业(农业)科研专项经费(nyhyzx07-047); 广东海洋大学博士启动项目(E06031); 广东海洋大学重点学科
    建设项目(ZD2006002)

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被引次数

31 | 8

摘要：

从波纹巴非蛤Paphia undulata湛江群体随机选择200个个体, 测量壳长(SL)、壳宽(SW)、壳高(SH)、韧带长(LL)和软体重(EW)等5个性状, 计算性状间的相关系数, 采用通径分析方法计算了以壳性状和韧带长为自变量对软体重作依变量的通径系数、决定系数和回归方程。结果表明，壳长、壳宽、壳高、韧带长与软体部重相关极显著(P < 0.01)。壳宽对软体部重的直接影响最大, 壳高对软体部重的直接影响次之。壳长与软体部重的相关程度很大, 但对软体部重的直接影响较小, 主要通过壳宽和壳高间接影响软体部重, 是影响软体部重的次要因素; 韧带长对软体部重的直接影响也相对较小。采用逐步回归分析方法建立了以壳宽和壳高为自变量估计软体重的多元回归方程: YEW＝－6.809＋3.589XSW＋1.610XSH, 为波纹巴非蛤选种提供了理论依据。

关键词: 波纹巴非蛤Paphia undulata, 表型性状, 通径分析, 回归方程

Abstract:

Shell length, shell width, shell height, ligament length, and edible-part weight of each of the 200 Paphia undulata individuals were measured. The samples were randomly collected from Nansan, Zhanjiang province. A correlation coefficient matrix was constructed on basis of the measured data, in which the edible-part weight was set as dependent variable and other characters as independent variables. Path coefficient and correlation index were calculated, and the major phenotypic charac-ters were determined. It was found that all the correlation coefficients between independent variables and dependent variable were significant (P < 0.01). A predominant direct effect of the shell width on the edible-part weight was observed, followed by the effect of the shell height. The shell length had the smallest direct effect on the edible-part weight. Of all characters ana-lyzed, the ligament length was the least important factor than all other characters that directly affected the edible-part weight. The multiple regression equation between the edible-part weight and other characters was established as YEW＝-6.809 + 3.589XSW + 1.610XSH, where YEW is edible-part weight, and XSW and XSH are the shell width and shell height, respectively. The study provides theoretical information for breeding of the species.

Key words: Paphia undulata, Phenotypic characters, Path Analysis, Regression equation