Molecular phylogeny and taxonomy of the genus Veloporphyrellus
Molecular phylogeny and taxonomy of the genus Veloporphyrellus
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Veloporphyrellus 属的分子系统发育和分类学
DOI：
10.3852/106.2.291
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发表时间：
2014-03-01
期刊：
影响因子：
2.8
通讯作者：
Yang, Zhu L.
中科院分区：
文献类型：
--
作者：
Li, Yan-Chun;Ortiz-Santana, Beatriz;Yang, Zhu L.
Veloporphyrellus是一个已知的属，分布于北美洲和中美洲，东南亚和非洲。由于该属的物种与几个属的一些分类单元，如牛肝菌属，Leccinum，Strobilomyces，Suillus和Tylopilus s.l.属于牛肝菌目，其系统发育的倾向从来没有得到解决。本研究通过对Veloporphyrellus的核核糖体LSU和tef-1α基因、线粒体mtSSU和atp 6基因4个DNA区域的分析，探讨了Veloporphyrellus的系统发育关系。虽然该属的单系性及其在牛肝菌科的系统位置得到了很好的支持，但它与其他属的关系尚未解决。Veloporphyrellus在形态学上与其他属的牛肝菌属相区别，其特征是具有粉红色或灰粉红色的子实梗，菌盖边缘有膜状的面纱，菌盖似真皮，担孢子光滑。本文描述了五个种，包括两个新种和两个新组合。文中还给出了Veloporphyrellus的分种检索表。
Veloporphyrellus is a genus known from North and Central America, southeastern Asia, and Africa. Because species of this genus are phenotypically similar to some taxa in several genera, such as Boletellus, Leccinum, Strobilomyces, Suillus and Tylopilus s.l. belonging to Boletales, its phylogenetic disposition has never been addressed. We analyzed four DNA regions, the nuclear ribosomal LSU and tef-1α, and the mitochondrial mtSSU and atp6 genes, to investigate the phylogenetic disposition of Veloporphyrellus. Although the monophyly of the genus and its systematic placement within the Boletaceae was well supported, its relationship to other genera was not resolved. Morphologically Veloporphyrellus is distinguished from other boletoid genera by the combination of the pinkish or grayish pink hymenophore, the membranous veil hanging on the pilea margin, the trichoderm-like pileus covering and the smooth basidiospores. Five species, including two new species and two new combinations, are described and illustrated. A key to the species of Veloporphyrellus also is provided.