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Chromosome numbers of 13 species in the genus Dryopteris (Dryopteridaceae) from Yunnan, China
Xiang, JY; Cheng, X; Wu, SG
Corresponding Authorsugong@mail.kib.ac.cn
2006-05-01
Source PublicationACTA PHYTOTAXONOMICA SINICA
ISSN0529-1526
Volume44Issue:3Pages:304-319
AbstractChromosomes 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.
KeywordDryopteris Chromosome Number Cytotype Cytotaxonomy
Subject AreaPlant Sciences
Indexed BySCI
Language英语
WOS Research AreaPlant Sciences
WOS SubjectPlant Sciences
WOS IDWOS:000237863500006
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Document Type期刊论文
Identifierhttp://ir.kib.ac.cn/handle/151853/13497
Collection离退休
AffiliationChinese Acad Sci, Kunming Inst Bot, Lab Plant Biodivers & Biogeog, Kunming 650204, Peoples R China
Recommended Citation
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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