黑龙江省农业科学院机构知识库

Analysis of the genetic diversity of Chinese native Cannabis sativa cultivars by using ISSR and chromosome markers

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文献类型：外文期刊

作者： Zhang, L. G. ¹ ; Chang, Y. ¹ ; Zhang, X. F. ³ ; Guan, F. Z. ² ; Yuan, H. M. ² ; Yu, Y. ² ; Zhao, L. J. ⁴ ;

作者机构： 1.Northeast Agr Univ, Coll Life Sci, Harbin, Peoples R China

2.Heilongjiang Acad Agr Sci, Inst Ind Crops, Harbin, Peoples R China

3.Guangxi Univ, Coll Math & Informat Sci, Nanning 530004, Peoples R China

4.Heilongjiang Acad Agr Sci, Inst Crop Breeding, Harbin, Peoples R China

关键词： Cannabis sativa;Inter-simple sequence repeat;Genetic diversity;Chromosome

期刊名称：GENETICS AND MOLECULAR RESEARCH （影响因子：0.764；五年影响因子：0.912 ）

ISSN： 1676-5680

年卷期： 2014 年 13 卷 4 期

页码：

收录情况： SCI

摘要： Hemp (Cannabis sativa) is an important fiber crop, and native cultivars exist widely throughout China. In the present study, we analyzed the genetic diversity of 27 important Chinese native hemp cultivars, by using inter-simple sequence repeats (ISSR) and chromosome markers. We determined the following chromosome formulas: 2n = 20 = 14m + 6sm; 2n = 20 = 20m; 2n = 20 = 18m + 2sm; 2n = 20 = 16m + 4sm; and 2n = 20 = 12m + 8sm. The results of our ISSR analysis revealed the genetic relationships among the 27 cultivars; these relationships were analyzed by using the unweighted pair-group method based on DNA polymorphism. Our results revealed that all of the native cultivars showed considerable genetic diversity. At a genetic distance of 0.324, the 27 varieties could be classified into five categories; this grouping corresponded well with the chromosome formulas. All of the investigated hemp cultivars represent relatively primitive types; moreover, the genetic distances show a geographical distribution, with a small amount of regional hybridity.

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