Addressing the diversity of Xylodon raduloides complex through integrative taxonomy
Addressing the diversity of Xylodon raduloides complex through integrative taxonomy
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DOI：
10.1186/s43008-019-0010-x
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发表时间：
2019-07-02
期刊：
影响因子：
5.4
通讯作者：
Martin, Maria P.
中科院分区：
文献类型：
--
作者：
Fernandez-Lopez, Javier;Teresa Telleria, M.;Martin, Maria P.
本研究探讨了中国野牡丹种复合体（膜壳目，担子菌门）的分类多样性。标本进行了研究，采用综合分类方法，包括分子系统发育和形态学分析，和环境生态位比较。在Xylodon raduloides复合体内发现了四种不同的物种，其地理分布模式受地理区域的限制：欧洲，北美，巴塔哥尼亚和澳大利亚-新西兰。分子，形态和环境的证据界定两个谱系内的复杂：一个北方半球的分支与较长的担孢子和更广泛的温度和降水耐受性，和南半球的分支与更小，更球形的担孢子，和一个等温和更潮湿的气候偏好。在这项研究中使用的综合分类方法表明数据集之间的一致性，并显示形态和环境特征如何有助于真菌物种复合体的分化。通过综合各种分类学资料，描述了三个新种：罗伦木齿象Xylodon laurentianus，罗伦木齿象X. novozelandicus和X. patagonicus。
In this study, the taxonomic diversity of the Xylodon raduloides species complex (Hymenochaetales, Basidiomycota) is examined. Specimens were studied using an integrative taxonomic approach that includes molecular phylogenetic and morphological analyses, and environmental niche comparisons. Four different species were found inside the Xylodon raduloides complex, with a biogeographic distribution pattern bound by geographic regions: Europe, North America, Patagonia, and Australia-New Zealand. Molecular, morphological, and environmental evidences delimit two lineages within this complex: a Northern Hemisphere clade with longer basidiospores and wider ranges in temperature and precipitation tolerance, and a Southern Hemisphere clade with smaller and more spherical basidiospores, and an isothermal and more humid climate preference. The integrative taxonomic approach used in this study demonstrates congruence between data sets and shows how morphological and environmental characteristics contribute to the differentiation of fungal species complexes. By combining various sources of taxonomic information, three new species are described: Xylodon laurentianus, X. novozelandicus, and X. patagonicus.