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题名: Comparison of the genetic diversity in two species of cycads
作者: Xiao, LQ; null(龚洵); Hao, G; Ge, XJ; Tian, B; Zheng, SX
刊名: AUSTRALIAN JOURNAL OF BOTANY
英文摘要: Inter-simple sequence repeat (ISSR) markers were used to examine the level and distribution of genetic diversity in two cycad species: Cycas parvula S. L. Yang and C. balansae Warburg. The former is found in only two adjacent populations and the latter in a relatively wider distribution. Although genetic diversity in C. balansae (H-e = 0.1301) is higher than that in C. parvula (H-e = 0.0538), both are still low in comparison with the mean value (H-e = 0.169) in gymnosperms. This confirms the general opinion that cycads are genetic relics. The genetic differentiation in both species, however, presents a striking contrast: G(st) is 0.0978 in C. parvula, but 0.4003 in C. balansae, which may be ascribed to the difference in distances between their populations.
出版日期: 2005
卷号: 53, 期号:3, 页码:219-223
DOI标识: 10.1071/BT04052
语种: 英语
收录类别: SCI
学科分类: Plant Sciences
ISSN号: 0067-1924
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/2403
Appears in Collections:资源植物与生物技术所级重点实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Kunming Inst Bot, Kunming 650204, Peoples R China
2.Yunnan Agr Univ, Kunming 650201, Peoples R China
3.Chinese Acad Sci, S China Bot Garden, Guangzhou 510650, Peoples R China

Recommended Citation:
Xiao, LQ; Gong, X; Hao, G; Ge, XJ; Tian, B; Zheng, SX.Comparison of the genetic diversity in two species of cycads,AUSTRALIAN JOURNAL OF BOTANY,2005,53(3):219-223
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