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
2014-05-01
发表期刊JOURNAL OF SYSTEMATICS AND EVOLUTION
ISSN1674-4918
卷号52期号:3页码:260-270
摘要Chromosome 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.
关键词Aneuploidy And Polyploidy Chromosomes Cluster Analysis Cyananthus Evolution Himalayan-hengduan Mountains
资助信息Key Program of Basic Work Special Plan of the Ministry of Science and Technology of China [2007FY110100]; National Natural Science Foundation of China - Yunnan Natural Science Foundation Union Project [U1136601]; National Natural Science Foundation of China [31360049]; Yunnan Provincial Excellent Course "Botany" Program
学科领域Plant Sciences
DOI10.1111/jse.12095
收录类别SCI
语种英语
WOS研究方向Plant Sciences
WOS类目Plant Sciences
WOS记录号WOS:000335400300003
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被引频次:2[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/151853/18133
专题中国科学院东亚植物多样性与生物地理学重点实验室
作者单位1.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
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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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