不同地理居群蓝尾石龙子染色体组型的比较

研究了浙江杭州、洞头、温州和福建宁德4个地理居群蓝尾石龙子(Eumeces elegans)的染色体组型，其二倍体均为2n=26(20V 6I)，NF=46，含有大型染色体6对、小型染色体7对，除3对小型的近端染色体外，其余均为中部着丝粒。但4个不同地理居群蓝尾石龙子之间的染色体在相对长度、臂比值、着丝粒指数等方面存在着一定的差异，说明不同地理居群的蓝尾石龙子的染色体具有丰富的多样性。

Comparison of Karyotypes of Different Geographical Populations of Eumeces elegans

The karyotypes of Eumeces elegans from Dongtou, Hangzhou and Wenzhou of Zhejiang Province and Ningde of Fujian Province were studied by making chromosomal specimens. Thus the karyotypes of four populations of E.elegans were compared. The results demonstrated that E.elegans from these four geographical populations have 2n26(20V+6I), including 6 pairs of macrochromosomes and 7 pairs of small chromosomes and 7 pairs of microchromosomes. Except for the 3 pairs of small acrocentric chromosomes, the rest are all metacentric chromosomes, NF46. But some dissimilarities were found among populations. First, the relative lengths of chromosomes were different among them, and secondly, the arm ratios and the centromere indexes were also different, which shows that chromosomes vary between different geographicial populations.