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Phylogenetic analyses and morphological characters reveal two new species of Ganoderma from Yunnan province, China.

ABSTRACT: Ganodermadianzhongense sp. nov. and G.esculentum sp. nov. are proposed as two new species based on both phenotypic and genotypic evidences. Ganodermadianzhongense is characterized by the stipitate basidiomata, laccate and oxblood red pileus, gray white pore surface, duplex context and broadly ellipsoid basidiospores (9.0-12.5 × 6.5-9.0 μm) with coarse interwall pillars. Ganodermaesculentum is characterized by its basidiomata with slender stipe, white pore surface, homogeneous pileus context, and slightly truncate, narrow basidiospores (8.0-12.5 × 5.0-8.0 µm). Phylogenetic analyses were carried out based on the internal transcribed spacer (ITS), translation elongation factor 1-α (TEF1-α) and the second subunit of RNA polymerase II (RPB2) sequence data. The illustrations and descriptions for the new taxa are provided.

SUBMITTER: He J

PROVIDER: S-EPMC8604878 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature

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Phylogenetic analyses and morphological characters reveal two new species of Ganoderma from Yunnan province, China.

He Jun J Luo Zong-Long ZL Tang Song-Ming SM Li Yong-Jun YJ Li Shu-Hong SH Su Hong-Yan HY

MycoKeys 20211112

Ganodermadianzhongense sp. nov. and G.esculentum sp. nov. are proposed as two new species based on both phenotypic and genotypic evidences. Ganodermadianzhongense is characterized by the stipitate basidiomata, laccate and oxblood red pileus, gray white pore surface, duplex context and broadly ellipsoid basidiospores (9.0-12.5 × 6.5-9.0 μm) with coarse interwall pillars. Ganodermaesculentum is characterized by its basidiomata with slender stipe, white por ...[more]

PMID: 34815729

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Project description:Yunnan Province, China is thought to be the original source of biovar Orientalis of Yersinia pestis, the causative agent of the third plague pandemic that has spread globally since the end of the 19th century. Although encompassing a large area of natural plague foci, Y. pestis strains have rarely been found in live rodents during surveillance in Yunnan, and most isolates are from rodent corpses and their fleas. In 2017, 10 Y. pestis strains were isolated from seven live rodents and three fleas in Heqing County (HQ) of Yunnan. These strains were supposed to have low virulence to local rodents Eothenomys miletus and Apodemus chevrieri because the rodents were healthy and no dead animals were found in surrounding areas, as had occurred in previous epizootic disease. We performed microscopic and biochemical examinations of the isolates,and compared their whole-genome sequences and transcriptome with those of 10 high virulence Y. pestis strains that were isolated from the adjacent city (Lijiang). We analyzed the phenotypic, genomic, and transcriptomic characteristics of live rodent isolates. The isolates formed a previously undefined monophyletic branch of Y. pestis that was named 1.IN5. Six SNPs, two indels, and one copy number variation were detected between live rodent isolates and the high virulence neighbors. No obvious functional consequence of these variations was found according to the known annotation information. Among the genes that were differentially expressed between the live rodent isolates and their high virulence neighbors, we detected five iron transfer-related genes that were significantly up-regulated in live rodent isolates compared with high virulence isolates (|log2 (FC) | >1, p.adjust <0.05), indicating these genes may be related to the low-virulence phenotype. The novel genotype of Y. pestis reported here provides further insights into the evolution and spread of plague as well as clues that may help to decipher the virulence mechanism of this notorious pathogen.

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Phylogenetic analyses and morphological characters reveal two new species of Ganoderma from Yunnan province, China.

Publications

Phylogenetic analyses and morphological characters reveal two new species of <i>Ganoderma</i> from Yunnan province, China.

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Phylogenetic analyses and morphological characters reveal two new species of Ganoderma from Yunnan province, China.

Publications

﻿Phylogenetic analyses and morphological characters reveal two new species of <i>Ganoderma</i> from Yunnan province, China.

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OmicsDI is part of the ELIXIR infrastructure

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Phylogenetic analyses and morphological characters reveal two new species of <i>Ganoderma</i> from Yunnan province, China.