3个二倍体风信子品种核型分析  

Karyotype analysis of 3 diploid hyacinth cultivars

作　　者：苏晓倩 王斐[1] 胡凤荣[1] SU Xiaoqian;WANG Fei;HU Fengrong(College of Landscape Architecture,Nanjing Forestry University,Nanjing210037,China)

机构地区：[1]南京林业大学风景园林学院

出　　处：《浙江农业学报》2019年第9期1509-1515,共7页Acta Agriculturae Zhejiangensis

基　　金：林业科技成果国家级推广项目(201520);江苏高校品牌专业建设工程(PPZY2015A063)

摘　　要：采用常规根尖压片法对吉普赛女王(Gipsy Queen)、紫色情感(Purple Sensation)、奥德修斯(Odysseus)3个二倍体风信子品种进行核型分析,以分析不同品种间的进化程度和亲缘关系。结果显示,3个品种风信子的染色体形态比较一致,均由中部(m)、近中部(sm)着丝粒染色体组成,具1对随体,但随体分布存在一定的差异,其中Gipsy Queen的核型公式为2 n=2x =16=6m+8sm+2sm(sat),Purple Sensation的核型公式为2 n=2x =16=6m+2m(sat)+8sm,Odysseus的核型公式为2 n=2x =16=6m+2m(sat)+8sm。3个品种的核型不对称系数分别为59.24%、58.92%、59.18%,核型类型均为2B类型。The karyotypes of three diploid hyacinth cultivars Gipsy Queen,Purple Sensation and Odysseus were analyzed by routine root tip pressing method to study the evolutionary degree and genetic relationship among different hyacinth cultivars. The results showed that karyotypes of hyacinths of three varieties were comparatively consistent,consisting of centromere chromosomes in the middle (m) and near-middle (sm),with a pair of satellites,but the distribution of satellites were differences in these three varieties. The karyotype formula of Gipsy Queen was2 n=2x =16=6m+8sm+2sm (sat),Purple Sensation was2 n=2x =16=6m+2m(sat)+8sm,and Odysseus was2 n=2x =16=6m+2m (sat)+8sm. The karyotype asymmetry coefficients of these three cultivars were 59.24%,58.92% and 59.18%,respectively,and the karyotype types were all2B.

关 键 词：风信子 压片法 染色体 核型 

分 类 号：S682.2[农业科学—观赏园艺]