摘要
采用压片法，对10种梅花品种及其3种近缘种杏、山杏和紫叶李进行了核型分析。结果表明：10种梅花品种及杏、山杏和紫叶李均为二倍体2n-2x=16，核不对称系数为55．17％～61．71％，核型类型有1A、1B、2B等3种类型，所有品种或种的核型都由其中部或近中部的着丝点染色体组成。‘丰后’和‘俏美人’等2个杂种品种染色体信息介于梅花与杏、山杏和紫叶李之间。关键词：梅花，近缘种，染色体。
The karyotypes were studied via squash method in 10 Prunus mume cultivars and 3 related species that P. armeniaca L. ,P. sibirica （L.） Lam. and P. cerasifera Ehrh. ＇Pissardii. The results showed that ploidy levels of all the test materials were diploid （2n=2x= 16）. Asymmetry index ranged from 55.17% to 61.71% ,The karyotypes of all the test materials were made of m and sm chromosomes,which include 1A, 1B and 2B. The chromosome information of P. mume ‘Fenghou＇ and P. mume ＇Qiao Meiren＇ was between Prunus mume and 3 related species.
出处
《西北植物学报》
CAS
CSCD
北大核心
2013年第11期2203-2208,共6页
Acta Botanica Boreali-Occidentalia Sinica
基金
"863"计划项目(2013AA102607)
关键词
梅花
近缘种
染色体
核型
Prunus murne
related species
chromosome
karyotype
