Morphology, chemistry and molecular phylogeny revealed a new species and a new combination of Myriolecis (Lecanoraceae, Ascomycota) from China

Morphology, chemistry and molecular phylogeny revealed a new species and a new combination of Myriolecis (Lecanoraceae, Ascomycota) from China
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形态学、化学和分子系统发育揭示了中国Myriolecis(Lecanoraceae,子囊菌门)的一个新种和一个新组合

DOI:
10.1639/0007-2745-122.3.375
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发表时间:
2019-08
期刊:
The Bryologist
影响因子:
--
通讯作者:
Fu Chengxin
Fu Chengxin
中科院分区:
其他
文献类型:
--
作者:
Mamut Reyim;Li Pan;Abbas Abdulla;Fu Chengxin

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抽象的。根据分子数据,描述了一个新物种,Myriolecis altunica,并将 Lecanora caesioalutacea 置于 Myriolecis 属(Lecanoraceae,子囊菌门)中。其特点是菌体连续,呈灰褐色,边缘呈分叶状,子囊盘及边缘呈黑色,盘面呈白色粉红色,无次生物质。 Myriolecis caesioalutacea 具有灰灰色的菌体和大量粉红色的、几乎白色的子囊,并含有氧杂蒽酮(2,7-二氯己酮)。该物种首次被报道为Lecanora caesioalutacea H.Magn。来自中国甘肃,但此处显示属于 Myriolecis 属。分别基于 ITS 和 6 位点组合分析(ITS、LSU、mtSSU、RPB1、RPB2、MCM7)的系统发育分析均支持这两个物种在 Myriolecis 中的放置。对类群进行了描述和说明,并简要讨论了它们的分布和生态。
Abstract. Based on molecular data, a new species, Myriolecis altunica, is described, and Lecanora caesioalutacea is placed in the genus Myriolecis (Lecanoraceae, Ascomycota). Myriolecis altunica is characterized by having a continuous, ashy brown thallus, with lobulate margins, apothecia with blackish disc and margin, with the disc whitish pruinose, and the absence of secondary substances. Myriolecis caesioalutacea has an ashy gray thallus and heavily pruinose, almost white apothecia, and contains xanthones (2,7-dichlorlichexanthone). The species was first reported as Lecanora caesioalutacea H.Magn. from Gansu, China, but is here shown to belong in the genus Myriolecis. Phylogenetic analyses based on ITS separately and on a 6-locus combined analysis (ITS, LSU, mtSSU, RPB1, RPB2, MCM7) both support placement of these two species in Myriolecis. The taxa are described and illustrated, and their distribution and ecology are briefly discussed.
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