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Multilocus sequencing reveals multiple geographically structured lineages of Conioiphora arida and C. olivacea (Boletales) in North America

机译:多基因座测序揭示了北美洲Conioiphora arida和C. olivacea(Boletales)的多个地理结构谱系

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Coniophora arida and C. olivacea (Coniophoraceae, Boletales) are widespread wood-decay fungi in temperate and boreal regions, occurring both in buildings and natural environments. Genetic variation and geographic structure among isolates of C. arida and C. olivaceae were investigated in this study, with an emphasis on North America. Multilocus sequencing of three DNA regions revealed three main lineages in C. arida and six in C. olivacea, some of which might represent cryptic species. Most of the lineages are present in North America, mainly in allopatry, suggesting recent or ongoing geographic speciation. One of the C. arida isolates included a high number of heterozygous sites and might represent a hybrid between two cryptic C. arida lineages. The data indicate out-crossing reproductive modes in both C. arida and C. olivacea. Together with other recent investigations of Coniophora species our data suggest that the genus comprises a significant number of cryptic species and is much more diverse than previously deduced from morphological characteristics.
机译:Coniophora arida和C. olivacea(Coniophoraceae,牛肝菌)是在温带和北方地区广泛存在的木材腐烂真菌,存在于建筑物和自然环境中。在这项研究中,以北美为重点研究了C. arida和C. olivaceae分离株之间的遗传变异和地理结构。对三个DNA区域的多基因座测序显示,在阿里达梭菌中有三个主要谱系,在橄榄果梭菌中有六个主要谱系,其中一些可能代表隐性物种。大多数血统都存在于北美,主要是异色岩,表明最近或正在进行的地理物种形成。一种Arida分离株包含大量杂合位点,可能代表两个隐秘Arida谱系之间的杂种。数据表明在C. arida和C. olivacea中都有不同的繁殖方式。与最近对Coniophora物种进行的其他研究一起,我们的数据表明该属包含大量隐性物种,比以前根据形态特征推断出的物种更加多样化。

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