Systematic significance of cytology in Cyananthus ( Campanulaceae) endemic to the Sino-Himalayan region
Chen, Guang-Fu1; Sun, Wen-Guang1; Hong, De-Yuan2; Zhou, Zhuo3; Niu, Yang3; Nie, Ze-Long3; Sun, Hang3; Zhang, Jian-Wen3; Li, Zhi-Min1
Corresponding AuthorLi,ZM (reprint author),Yunnan Normal Univ,Sch Life Sci,Kunming 650500,Peoples R China. ; zhangjianwen@mail.kib.ac.cn ; lizhimin_vip@163.com
2014-05-01
Source PublicationJOURNAL OF SYSTEMATICS AND EVOLUTION
ISSN1674-4918
Volume52Issue:3Pages:260-270
AbstractChromosome numbers and the morphology of members of 24 populations representing 15 species of the Sino-Himalayan endemic genus Cyananthus (Campanulaceae) were studied using karyological and numerical taxonomic techniques. The chromosome numbers of these taxa are 2n=10, 12, 14, 24, 28, and the basic chromosome numbers for the genus are x=5, 6, 7. All species except C. inflatus Hook. f. & Thoms. and C. microphyllus Edgew. were examined for the first time and a new ploidy level (tetraploidy) is reported in the genus. Chromosome measurement data were analyzed using cluster analysis. The relationships between three sections within Cyananthus and evolutionary trends within the genus are discussed in the light of karyological data. The cytological data suggest that Cyananthus is a relatively primitive genus in Campanulaceae and there is significant division within the genus, and polyploidization may have played an important role in the chromosome evolution and speciation of Cyananthus in the Himalayan-Hengduan Mountains.
KeywordAneuploidy And Polyploidy Chromosomes Cluster Analysis Cyananthus Evolution Himalayan-hengduan Mountains
Subject AreaPlant Sciences
DOI10.1111/jse.12095
Indexed BySCI
Language英语
WOS IDWOS:000335400300003
Citation statistics
Document Type期刊论文
Identifierhttp://ir.kib.ac.cn/handle/151853/18133
Collection中国科学院东亚植物多样性与生物地理学重点实验室
Affiliation1.Yunnan Normal Univ, Sch Life Sci, Kunming 650500, Peoples R China
2.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing 100093, Peoples R China
3.Chinese Acad Sci, Kunming Inst Bot, Key Lab Plant Divers & Biogeog East Asia, Kunming 650201, Peoples R China
Recommended Citation
GB/T 7714
Chen, Guang-Fu,Sun, Wen-Guang,Hong, De-Yuan,et al. Systematic significance of cytology in Cyananthus ( Campanulaceae) endemic to the Sino-Himalayan region[J]. JOURNAL OF SYSTEMATICS AND EVOLUTION,2014,52(3):260-270.
APA Chen, Guang-Fu.,Sun, Wen-Guang.,Hong, De-Yuan.,Zhou, Zhuo.,Niu, Yang.,...&Li, Zhi-Min.(2014).Systematic significance of cytology in Cyananthus ( Campanulaceae) endemic to the Sino-Himalayan region.JOURNAL OF SYSTEMATICS AND EVOLUTION,52(3),260-270.
MLA Chen, Guang-Fu,et al."Systematic significance of cytology in Cyananthus ( Campanulaceae) endemic to the Sino-Himalayan region".JOURNAL OF SYSTEMATICS AND EVOLUTION 52.3(2014):260-270.
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