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题名: Morphological and molecular evidence for natural hybridization in sympatric population of Roscoea humeana and R. cautleoides (Zingiberaceae)
作者: Du, Guang-Hui1, 2; Zhang, Zhi-Qiang1, 3; Li, Qing-Jun1
刊名: JOURNAL OF PLANT RESEARCH
关键词: Roscoea ; Sympatric occurrence ; Hybrid ; HAT-RAPD ; Reproductive barrier
英文摘要: The sympatric occurrence of some species in Roscoea is very common, but little information is available on natural hybridization. However, some intermediate individuals were found on the sympatric population of Roscoea humeana and R. cautleoides at Ganhaizi population in northwestern Yunnan Province, China. We suspected that these intermediate individuals were the hybrids of R. humeana and R. cautleoides from the previous evidence, but could not confirm them. In this study, morphometric analysis was followed by examination of HAT-RAPD polymorphisms to determine the occurrence of natural hybridization between sympatric R. humeana and R. cautleoides. The results showed that most morphological characters of the putative hybrids were found to be intermediate between those of R. humeana and R. cautleoides. Meanwhile, molecular analysis confirmed that the morphological intermediates were derived from hybridization between the two species. From the analysis of the NewHybrids, the hybridization individuals were mainly F(1)s. These results indicated that interspecific hybridization between R. humeana and R. cautleoides indeed occurred in sympatric population.
出版日期: 2012-09-01
卷号: 125, 期号:5, 页码:595-603
语种: 英语
收录类别: SCI
ISSN号: 0918-9440
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/15774
Appears in Collections:中国科学院东亚植物多样性与生物地理学重点实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Xishuangbanna Trop Bot Garden, Key Lab Trop Forest Ecol, Mengla 666303, Yunnan, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
3.Chinese Acad Sci, Kunming Inst Bot, Key Lab Biodivers & Biogeog, Kunming 650204, Peoples R China

Recommended Citation:
Du, Guang-Hui; Zhang, Zhi-Qiang; Li, Qing-Jun.Morphological and molecular evidence for natural hybridization in sympatric population of Roscoea humeana and R. cautleoides (Zingiberaceae),JOURNAL OF PLANT RESEARCH,2012,125(5):595-603
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