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首页> 外文期刊>International journal of plant sciences >PHYLOGENETICS, MORPHOLOGY, AND EVOLUTION OF THE LARGE GENUS MYRCIA S.L. (MYRTACEAE)
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PHYLOGENETICS, MORPHOLOGY, AND EVOLUTION OF THE LARGE GENUS MYRCIA S.L. (MYRTACEAE)

机译：大型MYRCIA S.L.的生理遗传学，形态学和进化（MYRTACEAE）

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摘要

Phylogenetic relationships of Myrcia s.L, the most species-rich tree genus in the Brazilian cerrado and Atlantic forests, are reconstructed by analysis, with parsimony and Bayesian inference, of four plastid regions (psbA-trnH intergenic spacer, trnL intron, trnL-F intergenic spacer, and matK exon) and the external and internal transcribed spacer regions of nuclear ribosomal DNA. The resulting phylogenetic hypothesis is evaluated in conjunction with key morphological characters and abiotic factors suggested to have influenced the group's current distribution. Some lineages identified by previous classifications are supported; others with morphological and/or ecological correspondence are recognized for the first time. Sequence divergence levels provide good resolution of relationships within but not between the main clades of Myrcia s.L The previously recognized genera Calyptranthes and Gomidesia are shown to be monophyletic, whereas Marlierea is shown not to be; all are nested within paraphyletic Myrcia. A new subgeneric classification is required. An interpretation of the origins of Myrcia s.L and potential causes of speciation in the group is made on the basis of recently published data and accepted geological events.
机译：通过对四个质体区（psbA-trnH基因间隔子，trnL内含子，trnL-F基因间互作）的简化分析和贝叶斯推断，重建了巴西errado森林和大西洋森林中物种最多的树属Myrcia sL的亲缘关系。间隔和matK外显子）以及核糖体DNA的外部和内部转录间隔区。系统发育假设与关键的形态特征和非生物因素一起评估，这些非生物因素影响了该群体的当前分布。支持先前分类所识别的某些谱系；首次识别出具有形态和/或生态对应性的其他物种。序列分歧水平提供了良好的关系解析，但在Myrcia s.L的主要进化枝之间却没有。在先前公认的Calyptranthes和Gomidesia属中，它们是单系的，而Marlierea则不是。全部嵌套在共生的Myrcia中。需要新的亚属分类。根据最近发布的数据和公认的地质事件，对Myrcia s.L的起源和物种形成的潜在原因进行了解释。

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  • 来源
    《International journal of plant sciences》 |2011年第7期|p.915-934|共20页
  • 作者

    Eve J. Lucas; Kazue Matsumoto; Stephen A. Harris; Eimear M. Nic Lughadha; Benedetta Benardini; Mark W. Chase;

  • 作者单位

    Herbarium, Royal Botanic Gardens, Kew, Richmond, Surrey TW9 3AB, United Kingdom,Jodrell Laboratory, Royal Botanic Gardens,Kew, Richmond, Surrey TW9 3DS, United Kingdom;

    Departamento de Botanica, Instituto de Biologia, Universidade Estadual deCampinas, Caixa Postal 6109, Campinas, 13083-970 Sao Paulo, Brazil;

    Department of Plant Sciences,University of Oxford, South Parks Road, Oxford OX1 3RB, United Kingdom;

    Herbarium, Royal Botanic Gardens, Kew, Richmond, Surrey TW9 3AB, United Kingdom;

    Herbarium, Royal Botanic Gardens, Kew, Richmond, Surrey TW9 3AB, United Kingdom;

    Jodrell Laboratory, Royal Botanic Gardens,Kew, Richmond, Surrey TW9 3DS, United Kingdom;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    biogeography; brazil; cerrado; mata atlantica; south america.;

    机译：生物地理学巴西;塞拉多马塔大西洋南美洲。;
  • 入库时间 2022-08-18 03:45:40

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