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虾夷扇贝体形性状对软体重和闭壳肌重的影响效果分析
引用本文:张存善,常亚青,曹学彬,刘小林,王诗欢,徐高蓉,银学祥.虾夷扇贝体形性状对软体重和闭壳肌重的影响效果分析[J].水产学报,2009,33(1):87-94.
作者姓名:张存善  常亚青  曹学彬  刘小林  王诗欢  徐高蓉  银学祥
作者单位:1. 大连水产学院农业部海洋水产增养殖与生物技术重点开放实验室,辽宁,大连,116023
2. 西北农林科技大学动物科技学院,陕西,杨陵,712100
3. 大连獐子岛渔业集团股份有限公司,辽宁,大连,116500
基金项目:国家高技术研究发展计划,国家自然科学基金资助项目
摘    要:利用虾夷扇贝表型性状资料,分析性状间的相关关系及其相关程度,建立相应的回归方程,为扇贝的选择育种奠定基础。试验随机抽取126只体形规则的3龄大连獐子岛海区底播增殖的虾夷扇贝,其中雌雄各63只,测定其壳长(X1)、壳高(X2)、壳宽(X3)、活体重(Y)、软体重(Z)和闭壳肌重(W),分别计算相关系数,采用通径分析方法计算了以体形性状为自变量对软体重和闭壳肌重作依变量的通径系数、决定系数及相关指数,定量的分析了体形性状对虾夷扇贝解剖性状的影响。结果表明虾夷扇贝壳长、壳宽、壳高与活体重、软体重和闭壳肌重的相关系数均达到极显著水平(P<0.01);壳高、壳宽是影响雌性软体重的主要因素,壳长、壳宽是影响雄性软体重的主要因素,而混合组受3个壳尺性状的共同影响;影响虾夷扇贝闭壳肌重的主要因素是壳宽,壳长、壳高的作用不显著;决定系数分析结果与通径分析结果有一致的变化趋势;多元回归分析,剔除不显著因子,建立了壳长、壳高、壳宽对软体重、闭壳肌重的回归方程:1). 雌性 Z= -128.573 +1.355X2 +1.407 X3;W= -8.216 +0.869X3;2). 雄性 Z =138.493+1.082 X1+2.524 X3;W= -11.855 + 0.955 X3;3). 混合 Z = -133.939 +0.606 X1+0.679X2 + 1.709X3;W= -9.525+ 0.896 X3。通过性状间的相关分析对两性状间的关系进行明确的定量,有利于制定合理的多性状选择方案,为虾夷扇贝选育提供理想的测度指标。

关 键 词:虾夷扇贝  体形性状  解剖性状  相关分析
收稿时间:2007/11/12 0:00:00
修稿时间:7/1/2008 12:00:00 AM

Analysis of effect of body shape traits on soft-tissue weight and adductor muscle weight in Patinopecten yessoensis
ZHANG Cun-shan,CHANG Ya-qing,CAO Xue-bin,LIU Xiao-lin,WANG Shi-huan,XU Gao-rong,YIN Xue-xiang.Analysis of effect of body shape traits on soft-tissue weight and adductor muscle weight in Patinopecten yessoensis[J].Journal of Fisheries of China,2009,33(1):87-94.
Authors:ZHANG Cun-shan  CHANG Ya-qing  CAO Xue-bin  LIU Xiao-lin  WANG Shi-huan  XU Gao-rong  YIN Xue-xiang
Abstract:The aim of the present work is to find the correlation relationship among the phenotypic characters, which is helpful to further selective breeding. The effects of body shape traits were analyzed on soft-tissue weight and adductor muscle weight in Japanese scallop (Patinopecten yessoensis Jay). 126 three-year old Japanese scallops, 63 male and 63 female scallops, were randomly collected from Zhangzidao Island in Liaoning Province. Shell length (X1), shell height (X2), shell width (X3), live body weight (Y), soft-tissue weight (Z) and adductor muscle weight (W) were measured individually, and their correlation coefficients were calculated respectively. Three body shape traits(X1, X2 and X3) were used as independent variables, and the anatomical traits (Z, W) were used as dependent variable for path analysis; path coefficients (Pi), determination coefficients (di) and correlation index (R2) were calculated. The results show that the correlation coefficients among the phenotypic characters range from 0.3251 to 0.8789, the difference was extremely significant (P<0.01). The path coefficient analysis further demonstrated the relationships between the different characteristics as shown follows: 1) X1, X2 and X3 gave predominant direct effects (0.3277, 0.3143, 0.3617) on Z in the population of Japanese scallops, they are the key effective factors; X2, X3 (0.5416, 0.3466)on female scallops and X1, X3 (0.4557, 0.4306)on male scallops. 2) The key effective factors of body shape traits on W in female(0.4842), male(0.3614) and population(0.4244) are X3; X1, X2 gave slightly direct and significant indirect effects through X3. Several multiple regression equations obtained to estimate two anatomical traits: 1) For female Z= -128.573+1.355 X2+1.407 X3; W= -8.216+ 0.869 X3; 2) for male Z = -138.493 +1.082 X1+2.524 X3; W = -11.855+0.955 X3; 3) for population Z= -133.939+0.606 X1+0.679X2+ 1.709 X3; W= -9.525+0.896 X3. This work provides some theoretical evidence for selection scheme of multiple traits and useful measuring targets for breeding of Japanese scallop.
Keywords:Patinopecten yessoensis  body shape traits  anatomical traits  correlation analysis
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