| 引用本文: | 马海涛,韩承慧,滕照军,刘相全,杨建敏,田玉秋,姜海滨.大菱鲆(Scophthalmus maximus)、星斑川鲽(Platichthys stellatus)及其杂交种的形态学分析.海洋与湖沼,2014,45(6):1380-1386. |
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| 大菱鲆(Scophthalmus maximus)、星斑川鲽(Platichthys stellatus)及其杂交种的形态学分析 |
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马海涛,韩承慧,滕照军,刘相全,杨建敏,田玉秋,姜海滨
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山东省海洋资源与环境研究院,山东省海洋资源与环境研究院；上海海洋大学,日照市海洋水产资源增殖站,山东省海洋资源与环境研究院,山东省海洋资源与环境研究院,日照市海洋水产资源增殖站,山东省海洋资源与环境研究院
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| 摘要: |
| 利用方差分析、聚类分析、判别分析和主成分分析等多元分析方法, 对大菱鲆、星斑川鲽及其杂交种(大菱鲆♀×星斑川鲽♂)的可数性状和可量性状进行了分析。结果表明: (1) 可数性状中, 除腹鳍鳍条数外, 杂交种与母本大菱鲆差异不显著, 而与父本星斑川鲽差异极显著。(2) 可量性状中, 杂交种和大菱鲆差异不显著的性状占可量性状的45%, 而与星斑川鲽都为显著差异。可量性状的杂种指数平均值为15.56, 显示杂交种可量性状总体属于偏母本。(3) 聚类分析表明, 杂交种与大菱鲆形态较为接近, 先聚为一支, 再与星斑川鲽聚为一支。(4) 主成分分析表明, 共获得了4个主成分, 其累积总变异的贡献率为73.49%。主成分散点图表明杂交种在形态差异上独立于大菱鲆和星斑川鲽。(5) 判别分析表明, 利用10个对结果影响贡献率较大的参数分别构建了其判别函数, 对大菱鲆、星斑川鲽和杂交种的综合判别准确率达到98.9%, 判别效果非常显著。研究认为, 杂交种的形态与母本比较相似, 但可以通过形态判别分析将三者进行区分判别。 |
| 关键词: 大菱鲆 星斑川鲽 杂交种 形态差异 多元分析 |
| DOI：10.11693/hyhz20131200213 |
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| 基金项目:山东省良种工程项目“优质抗病速生鱼类良种选育”, 2005—2015; 现代农业产业技术体系项目, nycytx-50 号; 烟台市科技发展计划, 2013ZH088 号; 星斑川鲽性别的人工控制与健康养殖技术研究, 2011GHY11516 号; 泰山学者岗位“水生动物营养与饲料” |
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| MORPHOLOGICAL ANALYSIS TO SCOPHTHALMUS MAXIMUS, PLATICHTHYS STELLATUS AND THEIR HYBRID |
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mahaitao,hanchenghui,tengzhaojun,liuxiangquan,yangjianmin,tianyuqiu and jianghaibin
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Shandong Marine Resource and Environment Research Institute,Shandong Marine Resource and Environment Research Institute；Shanghai Ocean University,Rizhao Proliferation Station of Marine aquatic resources,Shandong Marine Resource and Environment Research Institute,Shandong Marine Resource and Environment Research Institute,Rizhao Proliferation Station of Marine aquatic resources,Shandong Marine Resource and Environment Research Institute
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| Abstract: |
| Meristic character and morphometric characteristics of Scophthalmus maximus, Platichthys stellatus, and their hybrid were analyzed using principle component analysis method, discriminatory analysis, variance analysis, and cluster analysis. The results show that the number of pelvic fin rays was consistent in the three species, and the chi-square analysis of meristic characters showed significant differences between P. stellatus and the hybrid, but between S. maximus and the hybrid. In morphometric characteristics, 45% morphometric measurements were not significantly different (P >0.05) between the hybrid and S. maximus, all traits were significantly different (P <0.05) between the hybrid and P. stellatus. Among 20 measurable characters, the average hybrid index was calculated to be 15.56, indicating the measurable character inclined to its female parent. The result of cluster analysis revealed that, characters of hybrid was more similar to S. maximus than P. stellatus. In principle component analysis, four principal components were constructed by factor loadings and the cumulative contribution ratio was 73.49%. Three discriminate function were established in discriminatory analysis, the average discriminant accuracy was 98.9%. Therefore, multivariate analysis on proportional morphological traits could be feasible to identify and distinguish the morphological differences among S. maximus, P. stellatus, and their hybrid. |
| Key words: Scophthalmus maximus Platichthys stellatus the hybrid morphological variation multivariation analysis |
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