摘要
采用数量分类学技术对我国属 9种鸟类的核型进行了比较研究 .所研究的种类包括Emberizacioides ,E .spodocephala ,E .chrysophrys ,E .rutila ,E .elegans,E .aureola ,E .pusill,E .rustica ,E .schoeniclus.在聚类分析中 ,该类群明显地分成了 2组 ,第 1组包括E .rustica和E .schoeniclus ,其余 7种构成第 2组 .分析结果表明 ,物种形成已在染色体水平上发生 ,染色体变异与地理变异基本一致 .在数量细胞分类数据的基础上 ,尝试重建了属鸟类的系统发育树 ,探讨了该属鸟类的核型进化趋势 .
Comparative studies of karyotypes in buntings from China are carried out using the numerical taxonomy techniques. Taxa studied are as follows: Emberiza cioides, E. spodocephala, E. chrysophrys, E. rutila, E. elegans, E. aureola, E. pusill, E. rustica, E. schoeniclus. Within the taxa, two groups are evident in cluster analysis. The group one includes E. rustica and E. schoeniclus; the second group includes E. cioides, E. spodocephala, E. chrysophrys, E. rutila, E. elegans, E. aureola and E. pusill. The results show that variation in speciation was taken place at chromosomal level, and karyotype variations is largely paralleled with the geographical ones. Phylogeny of the Emberiza is assessed on the basis of numerical cytotaxonomical data, and the trend in the evolution of karyotypes in Emberiza is also discussed.
出处
《北京师范大学学报（自然科学版）》
CAS
CSCD
北大核心
2001年第6期815-819,共5页
Journal of Beijing Normal University(Natural Science)
