Extensive chromosome number variation in Aster ageratoides var. pendulus (Asteraceae)
Li, Wei-Ping1; Tang, Ming1; Yin, Gen-Shen2; Yin, Ying1; Yang, Fu-Sheng3; Chen, San-Mao1
2011-04-01
发表期刊BOTANICAL JOURNAL OF THE LINNEAN SOCIETY
ISSN0024-4074
卷号165期号:4页码:378-387
摘要Aster ageratoides var. pendulus, a recently described taxon, is endemic to Mt Hupingshan of north-western Hunan, China. Field observations and collections were made from the only known population. Root-tip squashes were used to determine the chromosome numbers of 96 plants and 61 seedlings from the achenes of eight sample plants. The results show that var. pedulus is a swarm of 30 cytotypes with nearly continuous chromosome numbers from 2n = 60 to 2n = 92. Chromosome numbers of 61 seedlings vary from 2n = 61 to 2n = 91, belonging to 18 cytotypes. The chromosome number variation of var. pendulus is highly unusual not only in the A. ageratoides polyploid complex but also in angiosperms. Such an enormous continuous variation of chromosome numbers could have arisen by the combined effect of hybridization, recent origin and high levels of polyploidy. (C) 2011 The Linnean Society of London, Botanical Journal of the Linnean Society, 2011, 165, 378-387.
关键词Aneuploidy High Polyploidy Hybridization Mt Hupinshan Natural Population Neopolyploid
资助信息National Natural Science Foundation of China[30470131]; Hunan Provincial Education Department[08A046]
学科领域Plant Sciences
DOI10.1111/j.1095-8339.2011.01114.x
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:000288704200005
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被引频次:6[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/151853/3934
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.Hunan Normal Univ, Coll Life Sci, Changsha 410081, Hunan, Peoples R China
2.Chinese Acad Sci, Key Lab Biodivers & Biogeog, Kunming Inst Bot, Kunming 650204, Peoples R China
3.Chinese Acad Sci, State Key Lab Systemat & Evolutionary Bot, Inst Bot, Beijing 100093, Peoples R China
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Li, Wei-Ping,Tang, Ming,Yin, Gen-Shen,et al. Extensive chromosome number variation in Aster ageratoides var. pendulus (Asteraceae)[J]. BOTANICAL JOURNAL OF THE LINNEAN SOCIETY,2011,165(4):378-387.
APA Li, Wei-Ping,Tang, Ming,Yin, Gen-Shen,Yin, Ying,Yang, Fu-Sheng,&Chen, San-Mao.(2011).Extensive chromosome number variation in Aster ageratoides var. pendulus (Asteraceae).BOTANICAL JOURNAL OF THE LINNEAN SOCIETY,165(4),378-387.
MLA Li, Wei-Ping,et al."Extensive chromosome number variation in Aster ageratoides var. pendulus (Asteraceae)".BOTANICAL JOURNAL OF THE LINNEAN SOCIETY 165.4(2011):378-387.
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