辽宁雏蝗不同地理种群染色体研究  

Chromosome Analysis in different Populations of Chorthippus liaoningensis Zheng in China

作　　者：许姝娟[1] 史红全[1] 韩亚鹏[1] 陈德来[1] 柳鹏飞[1] 

机构地区：[1]陇东学院生命科学与技术学院甘肃省高校陇东生物资源保护与利用省级重点实验室,甘肃庆阳745000

出　　处：《安徽农业科学》2017年第13期13-15,共3页Journal of Anhui Agricultural Sciences

基　　金：国家自然科学基金项目(31560139)

摘　　要：[目的]比较辽宁雏蝗(Chorthippus liaoningensis Zheng)3个不同地理种群(长白山种群、敦化种群、漠河种群)的染色体核型及C带带型。[方法]染色体常规压片法制片,使用BSG法处理染色体C带显带。[结果]辽宁雏蝗3个不同地理种群具有相同性别决定机制XO型,相同染色体数目2n(♂)=17,NF=23。3个地理种群染色体组式相似,染色体核型相同都为"1C"核型。在C带带型方面,3个地理种群的C带带型都比较单一,都仅具有着丝粒带。在异染色质总含量方面三者存在着差异。[结论]基于3个地理种群染色体核型及C带带型的特点,说明3个不同地理种群的辽宁雏蝗为同一种,但因为地理位置不同,同种内不同地理种群染色体C带带型存在一定差异。[ Objective ] The aim was to compare chromosomal karyotypes and C-banding karyotypes of Chorthippus liaoningensis Zheng in three geographic populations. [ Method] BSG method was used to carry out the banding treatment. [ Result] The three geographic populations had the same chromosomal karyotypes of ＂1C＂ type and the same sex-determining mechanism of XO and the same chromosome number 2n（ ♂ ） = 17 with NF =23. In C-banding, the three geographic populations all had centromefic band with different heterochromatin content. [ Conclusion] In view of the chromosome karyotypes and the characteristics of C-banding, the three geographic populations are the same specie. Because the distinct geographical environments, slight differences in C-banding karyotypes are apparent among the three populations.

关 键 词：辽宁雏蝗 染色体 核型 C带 地域种群 

分 类 号：Q969[生物学—昆虫学]