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题名: Cytological study of six Salvia species (lamiaceae) from the Hengduanshan Mountains region of China
作者: Yang, ZY; null(龚洵)
刊名: CARYOLOGIA
关键词: chromosome ; Hengduanshan Mountains ; karyotype ; Salvia ; speciation
英文摘要: Salvia is a genus with surprisingly diverse chromosome numbers. In this paper six species were cytologically studied from Hengduanshan Mountains region, where is one of two diversification centers of the genus. S. przewalskii var. przewalskii is a tetraploid with the chromosome number of 2n=4x=32, other five species are the diploids with chromosome numbers of 2n=2x=16. The basic chromosome number x=8 was inferred for an species studied, which was different from x=7, 11 and 16 reported for species of the genus distributed in other regions. Several recent cytological studies on different groups from Hengduanshan Mountains region showed that only few polyploids infers that variation of karyotype structure at the diploid level seems to play a leading role and sympatric speciation via hybridization and polyploidization has played a minor role in speciation of some groups in Hengduanshan Mountains region.
出版日期: 2004-10-01
卷号: 57, 期号:4, 页码:360-366
语种: 英语
收录类别: SCI
学科分类: Genetics & Heredity
ISSN号: 0008-7114
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/3194
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, Yunnan, Peoples R China

Recommended Citation:
Yang, ZY; Gong, X.Cytological study of six Salvia species (lamiaceae) from the Hengduanshan Mountains region of China,CARYOLOGIA,2004,57(4):360-366
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