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题名: Karyomorphology of Incarvillea (Bignoniaceae) and its implications in distribution and taxonomy
作者: Chen, ST; null(周浙昆); null(管开云); Nakata, M
刊名: BOTANICAL JOURNAL OF THE LINNEAN SOCIETY
关键词: China ; chromosome ; diploid
英文摘要: The karyomorphology of 11 species of the genus Incarvillea Juss. is reported. The chromosome numbers of all species studied are 2n = 22. The interphase nuclei and prophase chromosomes were found to be of the simple chromocentre type and the interstitial type, respectively. The asymmetry of the karyotype of I. arguta (two populations) in subgenus Amphicome is type 2A. The karyotypes of Incarvillea sinensis var. sinensis, I. sinensis var. przewalskii, and I. olgae in subgenus Incarvillea are of asymmetry type 3A. The remaining nine species and one variety in subgenus Pteroscleris are also of asymmetry 3A. Data on three species and one variety studied are first reports. This study indicates that karyotype variation at the diploid level appears to be the predominant feature of chromosome evolution in the genus Incarvillea. According to this study of karyomorphology, morphological characteristics and geographical distribution, it seems that the three subgenera should be regarded as three independent genera. The geography of the genus is discussed. (C) 2004 The Linnean Society of London.
出版日期: 2004
卷号: 144, 期号:1, 页码:113-121
语种: 英语
收录类别: SCI
学科分类: Plant Sciences
ISSN号: 0024-4074
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/2379
Appears in Collections:资源植物与生物技术所级重点实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Kunming Inst Bot, Kunming 650204, Peoples R China
2.Bot Gdn Toyama, Toyama 9392713, Japan

Recommended Citation:
Chen, ST; Zhou, ZK; Guan, KY; Nakata, M.Karyomorphology of Incarvillea (Bignoniaceae) and its implications in distribution and taxonomy,BOTANICAL JOURNAL OF THE LINNEAN SOCIETY,2004,144(1):113-121
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