摘要
对野生鲫鱼（Ｃａｒａｓｓｉｕｓ ａｕｒａｔｕｓ）和五个金鱼品种（Ｃａｒａｓｉｕｓ ａｕｒａｔｕｓ ｖａｒ．）的亲缘关系进行了比较研究。（１）两组判别分析表明，以１７个形态变异性状的指标衡量野生鲫鱼和金鱼以及金鱼各品种之间的差异，说明金鱼的种下分化是明显的（Ｆ〉〉Ｆ０．０１）。（２）对６个品种（包括鲫鱼）各２０尾鱼（计１２０个个体）进行１７个指标的聚类分析，结果大部分个体（占各品种的５０￣１００％）
The two-group discriminant-function analysis, stepwise discriminant analysis and numerical taxonomy were used for the comparative study or the intraspecific evolutionary relationship among the wild crucian carp (Carassius auratus) and five varieties of goldfish (C.auratus var.). Seventeen mophorlogical characters were analysed,and the divergences among the wild crucian carp and the varieties of goldfish are extremely significant indicating the presence of intraspecific differentiation. The cluster analysis revealed, with the most important characters selected by the stepwise discriminant analysis, that the wild crucian carp and the goldfish are phyletically corre lated. The variance analyses proved that the characters used for cluster analysis are reasonable.
出处
《水生生物学报》
CAS
CSCD
北大核心
1998年第3期236-243,共8页
Acta Hydrobiologica Sinica
关键词
野生鲫鱼
金鱼
判别分析
聚类分析
Wild crucian carp (Carassius auratus), Goldfish (Carassius auratus var.),Discriminant analysis, Cluster analysis.
