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首页> 外文期刊>International journal of plant sciences >PHYLOGEOGRAPHY OF SCHOTIA (FABACEAE): RECENT EVOLUTIONARY PROCESSES IN AN ANCIENT THICKET BIOME LINEAGE
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PHYLOGEOGRAPHY OF SCHOTIA (FABACEAE): RECENT EVOLUTIONARY PROCESSES IN AN ANCIENT THICKET BIOME LINEAGE

机译：schotia（FABA​​CEAE）的地理摄影：古代厚壁生物谱系中的最新进化过程

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摘要

Schotia has a southern African distribution with a strong affinity to the thicket biome and is a potential indicator of thicket biogeography. This study uses DNA sequence data (from the chloroplast and nuclear genomes) to infer interspecific phylogenetic relationships, to elucidate the evolutionary history of Schotia, and to extrapolate findings to the history of the thicket biome. Four species of Schotia represented by multiple samples were nonmonophyletic for both chloroplast and nuclear markers. These results may be due to hybridization and/or incomplete lineage sorting, which also suggests a recent origin of Schotia morphospecies. The center of genetic and taxonomic diversity of Schotia is the Eastern Cape and partly the Western Cape, coinciding with the hub of present-day thicket distribution. This region is hypothesized as being a refugial area for Schotia (and the associated thicket biome) during glacial periods, with expansion beyond this region during interglacial periods.
机译：Schotia在南部非洲分布，与灌木丛生物群落具有很强的亲和力，是灌木丛生物地理的潜在指示。这项研究使用DNA序列数据（来自叶绿体和核基因组）来推断种间系统发育关系，阐明Schotia的进化史，并将发现推论到灌木丛生物群系的历史上。多个样品代表的四种Schotia物种在叶绿体和核标记物方面都不是一元的。这些结果可能是由于杂交和/或不完整的谱系分选，这也表明了Schotia形态物种的最新起源。 Schotia的遗传和分类学多样性的中心是东开普省，部分是西开普省，与当今丛林分布的中心相吻合。假定该区域是冰川期Schotia（及相关的灌木丛生物群落）的避难区，而在冰川间期则超出该区域。

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  • 来源
    《International journal of plant sciences》 |2010年第6期|P.626-640|共15页
  • 作者

    Syd Ramdhani; Richard M. Cowling; Nigel P. Barkert;

  • 作者单位

    Department of Botany, Nelson Mandela Metropolitan University, P.O. Box 77000, Port Elizabeth 6031, South Africa Department of Geography (Westville Campus), School of Environmental Science, University of KwaZulu-Natal, Private Bag X54001, Durban 4000, South Africa;

    rnDepartment of Botany, Nelson Mandela Metropolitan University, P.O. Box 77000, Port Elizabeth 6031, South Africa;

    rnMolecular Ecology and Systematics Croup, Department of Botany, Rhodes University, Grahamstown 6140, South Africa;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    cpDNA; Fabaceae; ITS; Leguminosae; phylogeography; Schotia; southern Africa; thicket biome;

    机译：cpDNA;豆科它的;豆科系谱学;斯图亚非洲南部;灌木丛;
  • 入库时间 2022-08-18 03:45:40

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