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Karyomorphology of Maianthemum sensu lato (Polygonatae, Ruscaceae)
Meng, Y; Nie, ZL; Yang, YP; Gu, ZJ
2005-04-01
发表期刊JOURNAL OF PLANT RESEARCH
ISSN0918-9440
卷号118期号:2页码:155-162
摘要We report results of karyotype analyses using nine species of Maianthemum from China. The species, except M. atropurpureum (with 2n = 72), had 2n = 36, and the results support the earlier suggestion that Maianthemum has x = 18 with 2n = 36 in most species. ne species examined, however, showed marked differences in karyotype, particularly in the numbers of metacentric, submetacentric, and acrocentric chromosomes as well as in the number of satellites. In addition, we distinguished three different modes based on the number of clear gaps in chromosome length variation: unimodal, bimodal, and trimodal. The unimodal variation (with no gap) was found in M. dahuricum and M. atropurpureum, the bimodal variation (with one gap) in M. tatsienense, and the trimodal variation (with two gaps) in M. bifolium, M. forrestii, M. japonicum, M. henryi, M. purpureum, and M. lichiangense. In the trimodal variation, the positions of the two gaps may differ from species to species. In addition, the frequency of acrocentric chromosomes per complement was generally higher in the trimodal variation than in the unimodal and bimodal variations. Results of our analyses, which had not been clearly presented prior to this, may provide a better understanding of species evolution in the tribe Polygonatae.
关键词Chromosome Karyotype Maianthemum Polygonatae Ruscaceae
学科领域Plant Sciences
DOI10.1007/s10265-005-0205-7
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:000229458200010
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被引频次:8[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/151853/2607
专题中国科学院青藏高原研究所昆明部
作者单位1.Chinese Acad Sci, Kunming Inst Bot, Kunming 650204, Yunnan, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
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Meng, Y,Nie, ZL,Yang, YP,et al. Karyomorphology of Maianthemum sensu lato (Polygonatae, Ruscaceae)[J]. JOURNAL OF PLANT RESEARCH,2005,118(2):155-162.
APA Meng, Y,Nie, ZL,Yang, YP,&Gu, ZJ.(2005).Karyomorphology of Maianthemum sensu lato (Polygonatae, Ruscaceae).JOURNAL OF PLANT RESEARCH,118(2),155-162.
MLA Meng, Y,et al."Karyomorphology of Maianthemum sensu lato (Polygonatae, Ruscaceae)".JOURNAL OF PLANT RESEARCH 118.2(2005):155-162.
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