西南林业大学学报2018，Vol.38Issue(2)：185-189,5.DOI:10.11929/j.issn.2095-1914.2018.02.029
云南蝗不同地理种群染色体研究
Chromosome Study on Different Geographical Populations of Yunnanites coriacea
摘要
Abstract
Yunnanites coriacea was an endemic species of China. In order to understand the cytogenetic char-acteristics of different populations of Y.coriacea, the chromosome karyotype and C-band patterns of 2 geographic populations of Y.coriacea were studied by squashing and BSG chromosomal banding technique. The results showed that the 2 geographic populations had a diploid chromosome number of 2n(♂)= 19 with a fundamental number (NF)= 19, all chromosomes were telocentric and an XO sex-determining mechanism. The karyotype formula of Y.coriacea was 2n(♂)=3L + 6M +X,large and medium,and the X chromosome was the first element in size. The C-band karyotype analysis indicated that there were only 10 centromeric C-bands with a total of heterochromatic con-tent (THC) was 10.67% in Kunming Western mountain population while the population in Dongchuan tuobuka had 10 centromeric C-bands and 8 terminal C-bands,and the total of heterochromatic content was 29.53%.Combining the external morphological differences of the 2 population,It could be considered as 2 different geographic subspecies.关键词
云南蝗/染色体/C带核型/种群Key words
Yunnanites coriacea/chromosome/C-banding karyotype/population分类
农业科技引用本文复制引用
柳青,欧晓红..云南蝗不同地理种群染色体研究[J].西南林业大学学报,2018,38(2):185-189,5.基金项目
国家自然科学基金项目(31400351)资助 （31400351）
国家自然科学基金项目(30760033)资助. （30760033）
