Chromosome numbers of 13 species in the genus Dryopteris (Dryopteridaceae) from Yunnan, China

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	Chromosome numbers of 13 species in the genus Dryopteris (Dryopteridaceae) from Yunnan, China
	Xiang, JY; Cheng, X; Wu, SG
通讯作者	sugong@mail.kib.ac.cn
	2006-05-01
发表期刊	ACTA PHYTOTAXONOMICA SINICA
ISSN	0529-1526
卷号	44 期号:3 页码:304-319
摘要	Chromosomes of 13 species in the genus Dryopteris Adanson (Dryopteridaceae) from Yunnan, China have been counted. The numbers in four species, D. alpestris Tagawa (2n=82), D. habaensis Ching (2n=82), D. lachoongensis (Bedd.) Nayar & Kaur (2n=82), and D. yungtzeensis Ching (2n=82), were reported for the first time. The triploid apomict D. rosthornii (Diels) C. Chr. (2n=123), the tetraploid apomict D. wallichiana (Spreng.) Hylander ('n'=164, 2n=164) and the diploid apomict D. yoroii Serizawa (2n=82) represent three new cytotypes. Our results support the establishment of the section Caespitosae S. G. Lu, and indicate a high percentage of the diploid apomict cytotype in Dryopteris from the Himalayan region of China. The phenomenon of the presence of different cytotypes in a same plant of fern species is discussed.
关键词	Dryopteris Chromosome Number Cytotype Cytotaxonomy
学科领域	Plant Sciences
收录类别	SCI
语种	英语
WOS记录号	WOS:000237863500006
引用统计	被引频次：9[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/13497
专题	离退休
作者单位	Chinese Acad Sci, Kunming Inst Bot, Lab Plant Biodivers & Biogeog, Kunming 650204, Peoples R China
推荐引用方式 GB/T 7714	Xiang, JY,Cheng, X,Wu, SG. Chromosome numbers of 13 species in the genus Dryopteris (Dryopteridaceae) from Yunnan, China[J]. ACTA PHYTOTAXONOMICA SINICA,2006,44(3):304-319.
APA	Xiang, JY,Cheng, X,&Wu, SG.(2006).Chromosome numbers of 13 species in the genus Dryopteris (Dryopteridaceae) from Yunnan, China.ACTA PHYTOTAXONOMICA SINICA,44(3),304-319.
MLA	Xiang, JY,et al."Chromosome numbers of 13 species in the genus Dryopteris (Dryopteridaceae) from Yunnan, China".ACTA PHYTOTAXONOMICA SINICA 44.3(2006):304-319.

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