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题名: First report of chromosome numbers and karyotypes of two monotypic genera endemic to eastern Asia: Brachystemma (Caryophyllaceae) and Craspedolobium (Fabaceae)
作者: Xu, Jin1, 2; Yin, Zhi-Jian1, 2; Funamoto, Tsuneo3; null(彭华)1
刊名: NORDIC JOURNAL OF BOTANY
关键词: CALYCINUM ; MILLETTIEAE ; PHYLOGENY ; SEQUENCES ; ALKALOIDS
英文摘要: The chromosome numbers and karyotypes of Brachystemma and Craspedolobium, two monotypic genera endemic to eastern Asia, are reported here for the first time. The somatic chromosome numbers are 2n=40 for Brachystemma calycinum and 2n=22 for Craspedolobium unijugum. A karyotype of 2n=2x=40=28m+12sm was found in B. calycinum and that of 2n=2x=22=12m+10sm in C. unijugum, both of them have a moderately symmetrical karyotype type 2B and small-sized chromosomes. Brachystemma has a unique basic chromosome number in Alsinoideae, which may support its isolated taxonomic position. As do some morphological characters, the basic chromosome number x=11 suggests that Craspedolobium belongs in the Millettioid clade.
出版日期: 2011
卷号: 29, 期号:2, 页码:200-203
语种: 英语
收录类别: SCI
学科分类: Plant Sciences
ISSN号: 0107-055X
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/3890
Appears in Collections:中国科学院东亚植物多样性与生物地理学重点实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Biodivers & Biogeog, Kunming 650204, Yunnan, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
3.Showa Pharmaceut Univ, Fundamental Educ & Res Ctr Pharmaceut Sci, Inst Biol, Machida, Tokyo 1948543, Japan

Recommended Citation:
Xu, Jin; Yin, Zhi-Jian; Funamoto, Tsuneo; Peng, Hua.First report of chromosome numbers and karyotypes of two monotypic genera endemic to eastern Asia: Brachystemma (Caryophyllaceae) and Craspedolobium (Fabaceae),NORDIC JOURNAL OF BOTANY,2011,29(2):200-203
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