水产学报2012，Vol.36Issue(6)：801-808,8.DOI:10.3724/SP.J.1231.2012.27690
大口黑鲈北方亚种、佛罗里达亚种及其杂交子代的生长和形态差异分析
Growth and morphological characteristics comparison of northern largemouth bass, Florida largemouth bass and their reciprocal hybrids
摘要
Abstract
Based on northern largemouth bass and florida largemouth bass, four populations including selling of N(Micropterus salmoides salmoides ♀×M s. salmoides♂) and F(M s.floridanus ♀×M s.flori-danus♂), direct cross NF(M s. salmoides♀×M. s. floridanus♂) and FN(M s. floridanus♀×M. s. sal-moides♂) were established. Further comparative analysis of growth and morphological characteristics were carried out between parents and their reciprocal hybrids. The results were as follows. The growth rates had no difference between N, NF and FN on 152nd day. After 152 days the northern largemouth bass grew more rapidly than two hybrids. As meristic characters, the numbers of soft ray of pelvic, spine of anal fin, gill raker and vertebra were consistent in these four populations, and the chi-square analysis of meristic characters showed highly significant differences between parents and hybrids in soft ray of dorsal, soft ray of pectoral, soft ray of anal fin, soft ray of tail fin, scales above lateral line and scales below lateral line. The results of cluster analysis have revealed that the morph metric characters of N and F were much closer, the same to the reciprocal hybrids groups. Three principal components with accumulative variance percentage 71.44% were summarized in principal component analysis. The principal components 1, 2 and 3 reflected the morphological variations of frame, head and caudal peduncle, with the variance percentage being 54.90%, 11.20% and 5.33%. In discriminant analysis, 11 parameters were selected from 35 measured parameters to establish discriminant functioned of the populations. Discriminant accuracy was 83.90%— 100.00%. This study would be beneficial to the identification, breeding and aquaculture of largemouth bass.关键词
大口黑鲈/北方亚种/佛罗里达亚种/杂交子代/生长差异/形态差异Key words
Micropterus salmoides/ M. s. salmoides/ M. s. floridanus/ hybrid/ growth/ morphological cha-racteristics分类
生物科学引用本文复制引用
蔡磊,白俊杰,李胜杰,陈昆慈,曹婷婷..大口黑鲈北方亚种、佛罗里达亚种及其杂交子代的生长和形态差异分析[J].水产学报,2012,36(6):801-808,8.基金项目
农业部“948”项目(2010Z9) （2010Z9）
农业部公益性行业科研专项(200903045) （200903045）
国家科技支撑计划(2006BAD01A1209) （2006BAD01A1209）
