水产学报2012，Vol.36Issue(10)：1512-1519,8.DOI:10.3724/SP.J.1231.2012.27886
斑节对虾4个地理种群自交与杂交F1的形态特征分析
Morphological variability in reciprocal hybrids F1 of Penaeus monodon from four geographical populations
摘要
Abstract
Based on 8 morphological characters, three multivariation analysis methods( principal component analysis,discriminant analysis and cluster analysis) were used to compare and investigate the morphological variations of the first generation of three self-bred( TT,SS,YY) and seven corresponding hybrids( ST,TS, YT, TY, SF, TF and YF) in Penaeus monodon from four geographical populations, and approached the relative relationships among the populations. ANOVA analysis indicated that the first generation of different mating groups showed some morphological variations except SF and TF. The principal component analysis of the first generation of Penaeus monodon yielded two principal components ( PCs) , which accounted for 72.54% of the total variation. In the first PC, which explained 48. 15% of the total variance, the most important characters were numbered of the third pleon segment length (TSL) , second pleon segment length (SSL), sixth pleon segment length ( SISL) and carapace width ( CW) of the shrimps. In the second PC (24.39% ) , expressed variables exclusively associated with the carapace length (CL) and body length(BL). Based on DFA evaluation, the proportion of individuals correctly classified into their original groups was very low. The cluster analysis indicated that there were most similar morphological characters among the stocks of ST,TS,TT and SF,TF,YF.关键词
斑节对虾/杂种/形态特征/多元分析Key words
Penaeus monodon/ hybrid/ morphological characteristics/ multivariation analysis分类
生物科学引用本文复制引用
孙苗苗,黄建华,杨其彬,周发林,苏天凤,江世贵..斑节对虾4个地理种群自交与杂交F1的形态特征分析[J].水产学报,2012,36(10):1512-1519,8.基金项目
现代农业产业技术体系建设专项(CARS-47) （CARS-47）
广东省海洋渔业推广专项(A201101B03) （A201101B03）
广东省科技计划项目(2009B020308002) （2009B020308002）
