不同地理居群北草蜥染色体组型的比较分析  

Comparison of karyotypes of different geographical populations in Takydromus septentrionalis

作　　者：刘永章[1] 张永普[2] 

机构地区：[1]温州医学院生命科学学院,浙江温州325035 [2]温州大学生命与环境科学学院,浙江温州325035

出　　处：《温州医学院学报》2011年第1期28-32,36,共6页Journal of Wenzhou Medical College

摘　　要：目的:研究了浙江北麂、洞头、缙云、泰顺和贵州贵阳五个地理居群北草蜥(Takydromus septentrionalis)的染色体组型。方法:采用常规骨髓细胞空气干燥法制备染色体。结果:北草蜥五个地理居群的二倍体均为2n=38(38I),NF=38,含有18对大染色体和1对小染色体,且全部为端部着丝粒染色体。北草蜥具异型性性染色体,雌性为ZW,雄性为ZZ。结论:五个不同地理居群北草蜥之间的染色体在相对长度方面存在着较大的差异,说明不同地理居群的北草蜥染色体具有丰富的多样性。Objective： To study karyotypes of Takydromus septentrionalis from Beiji,Dongtou,Jinyun and Taishuen of Zhejiang Province and Guiyang of Guizhou Province by making chromosomal specimens.Methods： The chromosomal specimens were prepared by the air-dry method of marrow cell.Results： the Takydromus septentrionalis from the five different geographic populations had 2n=38（38I）,NF=38,including 18 pairs of macrochromosomes and 1 pairs of microchromosomes,moreover,all of the 19 pairs of chromosomes was areocentric chromosomes.There were different types of sexual chromosomes between the Karyotypes of the male and female.The female had ZW while the male had ZZ.Conclusion： The relative length has definite differences among the five different populations of Takydromus septentrionalis,which showed that the chromosomes of different geographical populations have diversities.

关 键 词：北草蜥 居群 染色体组型 

分 类 号：Q953[生物学—动物学]