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题名: Ploidy in the alpine sedge Kobresia pygmaea (Cyperaceae) and related species: combined application of chromosome counts, new microsatellite markers and flow cytometry
作者: Seeber, Elke1; Winterfeld, Grit2, 3; Hensen, Isabell2, 3, 4; Sharbel, Timothy F.5; Durka, Walter6; Liu, Jianquan7; Yang Yongping(杨永平)8; Wesche, Karsten1, 4
刊名: BOTANICAL JOURNAL OF THE LINNEAN SOCIETY
出版日期: 2014-09-01
卷号: 176, 期号:1, 页码:22-35
关键词: 454 sequencing ; basic chromosome number ; cross-amplification ; Kobresia pygmaea ecosystem ; next-generation sequencing ; palaeopolyploidy ; Tibetan Plateau
学科分类: Plant Sciences
DOI: 10.1111/boj.12189
通讯作者: Seeber,E (reprint author),Senckenberg Museum Nat Hist Goerlitz,Dept Bot,POB 300 154,D-02806 Goerlitz,Germany. ; elke.seeber@senckenberg.de
文章类型: Article
英文摘要: Polyploidy is a fundamental mechanism in evolution, but is hard to detect in taxa with agmatoploidy or aneuploidy. We tested whether a combination of chromosome counting, microsatellite analyses and flow cytometric measurements represents a suitable approach for the detection of basic chromosome numbers and ploidy in Kobresia (Cyperaceae). Chromosome counting resulted in 2n = 64 for Kobresia pygmaea and K. cercostachys, 2n = 58 and 64 for K. myosuroides, and 2n = 72 for K. simpliciuscula. We characterized eight microsatellite loci for K. pygmaea, which gave a maximum of four alleles per individual. Cross-species amplification was tested in 26 congeneric species and, on average, six of eight loci amplified successfully. Using flow cytometry, we confirmed tetraploidy in K. pygmaea. Basic chromosome numbers and ploidy were inferred from chromosome counts and the maximum number of alleles per locus. We consider the basic numbers as x = 16 and 18, with irregularities derived from agmatoploidy and aneuploidy. Across all Kobresia taxa, ploidy ranged from diploid up to heptaploid. The combination of chromosome counts and microsatellite analyses is an ideal method for the determination of basic chromosome numbers and for inferring ploidy, and flow cytometry is a suitable tool for the identification of deviating cytotypes. (C) 2014 The Linnean Society of London
类目[WOS]: Plant Sciences
研究领域[WOS]: Plant Sciences
关键词[WOS]: QINGHAI-TIBET PLATEAU ; CAREX CYPERACEAE ; GENUS CAREX ; GENETIC DIVERSITY ; RECURRENT FORMATION ; VASCULAR PLANTS ; RANGE EXPANSION ; POLYPLOIDY ; EVOLUTION ; AMPLIFICATION
收录类别: SCI
语种: 英语
WOS记录号: WOS:000341834900002
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/18416
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.Senckenberg Museum Nat Hist Goerlitz, Dept Bot, D-02806 Goerlitz, Germany
2.Univ Halle Wittenberg, Dept Geobot, D-06108 Halle, Saale, Germany
3.Univ Halle Wittenberg, Bot Garden, D-06108 Halle, Saale, Germany
4.German Ctr Integrat Biodivers Res iDiv, D-04103 Leipzig, Germany
5.Leibniz Inst Plant Genet & Crop Plant Res IPK, Apomixis Res Grp, D-06466 Stadt Seeland, Ot Gatersleben, Germany
6.UFZ Helmholtz Ctr Environm Res, Dept Community Ecol, D-06120 Halle, Saale, Germany
7.Lanzhou Univ, Sch Life Sci, State Key Lab Grassland Agroecosyst, Lanzhou 730000, Gansu, Peoples R China
8.Chinese Acad Sci, Kunming Inst Bot, Heilongtan 650204, Kunming, Peoples R China

Recommended Citation:
Seeber,Elke;Winterfeld,Grit;Hensen,Isabell;Sharbel,Timothy F.;Durka,Walter;Liu,Jianquan;Yang,Yong-Ping;Wesche,Karsten.Ploidy in the alpine sedge Kobresia pygmaea (Cyperaceae) and related species: combined application of chromosome counts, new microsatellite markers and flow cytometry,BOTANICAL JOURNAL OF THE LINNEAN SOCIETY,2014,176(1):22-35
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