Phylogeny and taxonomy of Laetiporus (Basidiomycota, Polyporales) with descriptions of two new species from western China.
Phylogeny and taxonomy of Laetiporus (Basidiomycota, Polyporales) with descriptions of two new species from western China.
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Laetiporus（担子菌门、多孔菌目）的系统发育和分类以及来自中国西部的两个新种的描述
DOI：
10.3897/mycokeys.37.26016
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发表时间：
2018
期刊：
影响因子：
3.3
通讯作者：
Cui BK
中科院分区：
文献类型：
--
作者：
Song J;Sun YF;Ji X;Dai YC;Cui BK
褐腐菌是一种广布的褐腐菌属。在本研究中，根据形态和分子证据，描述了产于中国西部的两个新种--麦迪逊乳杆菌和新疆乳杆菌。麦迪逊菌只在裸子植物上发现，其特征是粉红色到粘土色的绒毛面和浅黄色的孔面，氮化的到微弱带状的菌盖，椭圆形到卵形的担孢子(5-6.2×4.2-5.2μm)。新疆冬虫夏草产于被子植物上，菌毛表面淡黄色至黏土粉红色，毛孔表面乳白色至淡黄色，菌盖呈固氮状至微带状，气孔大(2-3个/mm)，担孢子小(4.5-5×3-4μm)。利用核糖体基因的内部转录间隔区(ITS)、大亚基(NrLSU)和小亚基(NrSSU)、线粒体rRNA基因的小亚基(MtSSU)、翻译延长因子1-α基因(EF-1α)和RNA聚合酶II的第二亚基(RPB2)等多基因序列重建了莱特孢霉的系统发育。结果表明，麦德氏乳杆菌和新疆乳杆菌形成了两个不同的谱系，属于莱特孢子虫。对两个新种进行了图文并茂的描述。提供了硫磺乳杆菌复合体的种类鉴定检索表。
Laetiporus is a cosmopolitan genus of brown rot fungi. In this study, L. medogensis and L. xinjiangensis are described as new species from western China, based on morphological and molecular evidence. L. medogensis has only been found on gymnosperms so far and is distinguished by pinkish-buff to clay-buff pileal surface and buff-yellow pore surface, azonate to faintly zonate pileus and ellipsoid to ovoid basidiospores (5–6.2× 4.2–5.2 μm). L. xinjiangensis is found on angiosperms and is characterised by pale-buff to clay-pink pileal surface, cream to light yellow pore surface, azonate to faintly zonate pileus, large pores (2–3 per mm) and small basidiospores (4.5–5× 3–4.2 μm). The phylogeny of Laetiporus is reconstructed with multi-gene sequences including the internal transcribed spacer regions (ITS), the large subunit (nrLSU) and small subunit (nrSSU) of the nuclear ribosomal RNA gene, the small subunit of the mitochondrial rRNA gene (mtSSU), the translation elongation factor 1-α gene (EF-1α) and the second subunit of RNA polymerase II (RPB2). The results show that L. medogensis and L. xinjiangensis formed two distinct lineages belonging to Laetiporus. Illustrated descriptions of the two new species are presented. An identification key to species of L. sulphureus complex is provided.
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影响因子：
5.8
作者：
Posada, D;Crandall, KA
通讯作者：
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