塞罕坝野生金莲花不同居群核型比较  

Chromosome karyotype analysis of different populations of Trollius chinensis Bunge in Saihanba

作　　者：张凡[1] 张芹[1] 胡彦鹏 

机构地区：[1]河北农业大学园林与旅游学院,河北保定071001 [2]承德市隆化县林管局,河北承德068150

出　　处：《河北农业大学学报》2013年第6期66-69,共4页Journal of Hebei Agricultural University

基　　金：国家星火计划项目(2012GA105005);河北省教育厅项目(2007462);河北省科技计划项目(11236713D-13-1)子课题;河北省重点学科资助项目

摘　　要：利用常规压片法对塞罕坝不同居群金莲花(Trollius chinensis Bunge)的染色体数目与核型进行了分析。结果表明:3个不同居群的金莲花(JLH10、JLH11和JLH12)的染色体数目均为16条,为二倍体(2n=2x=16),其核型公式分别为2n=2x=16=10sm+6st、2n=2x=16=2m+10sm+4st和2n=2x=16=2m+6sm+8st。三者核型均为3A型,其核型不对称系数分别为74.27%,70.70%和73.98%。The chromosome number and karyotype of three different populations of Trollius chinensis in Saihanba was studied by squash method. The results showed that they were dip-loid,their chromosome number was 2n=16; karyotype formula of JLH10,JLH11 and JLH12 was 2n=2x=16=10sm＋ 6st,2n=2x=16=2m ＋10sm＋4st and 2n=2x=16=2m A-6sm＋8st ,respectively, and all belonged to 3A type. The asymmetrical coefficient of three popula-tions was 74.27%, 70.70% and 73.98%, respectively.

关 键 词：金莲花 不同居群 染色体 核型 

分 类 号：S682.1[农业科学—观赏园艺]