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Neostagonosporellasichuanensis gen. et sp. nov. (Phaeosphaeriaceae, Pleosporales) on Phyllostachysheteroclada (Poaceae) from Sichuan Province, China.


ABSTRACT: Neostagonosporellasichuanensis sp. nov. was found on Phyllostachysheteroclada collected from Sichuan Province in China and is introduced in a new genus Neostagonosporella gen. nov. in this paper. Evidence for the placement of the new taxon in the family Phaeosphaeriaceae is supported by morphology and phylogenetic analysis of a combined LSU, SSU, ITS and TEF 1-? DNA sequence dataset. Maximum-likelihood, maximum-parsimony and Bayesian inference phylogenetic analyses support Neostagonosporella as a distinct genus within this family. The new genus is compared with related genera of Phaeosphaeriaceae and full descriptions and illustrations are provided. Neostagonosporella is characterised by its unique suite of characters, such as multiloculate ascostromata and cylindrical to fusiform, transversely multiseptate, straight or curved ascospores, which are widest at the central cells. Conidiostromata are multiloculate, fusiform to long fusiform or rhomboid, with two types conidia; macroconidia vermiform or subcylindrical to cylindrical, transversely multiseptate, sometimes curved, almost equidistant between septa and microconidia oval, ellipsoidal or long ellipsoidal, aseptate, rounded at both ends. An updated phylogeny of the Phaeosphaeriaceae based on multigene analysis is provided.

SUBMITTER: Yang CL 

PROVIDER: S-EPMC6389646 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature

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<i>Neostagonosporellasichuanensis</i> gen. et sp. nov. (Phaeosphaeriaceae, Pleosporales) on <i>Phyllostachysheteroclada</i> (Poaceae) from Sichuan Province, China.

Yang Chun-Lin CL   Xu Xiu-Lan XL   Wanasinghe Dhanushka N DN   Jeewon Rajesh R   Phookamsak Rungtiwa R   Liu Ying-Gao YG   Liu Li-Juan LJ   Hyde Kevin D KD  

MycoKeys 20190218 46


<i>Neostagonosporellasichuanensis</i> sp. nov. was found on <i>Phyllostachysheteroclada</i> collected from Sichuan Province in China and is introduced in a new genus <i>Neostagonosporella</i> gen. nov. in this paper. Evidence for the placement of the new taxon in the family Phaeosphaeriaceae is supported by morphology and phylogenetic analysis of a combined LSU, SSU, ITS and TEF 1-α DNA sequence dataset. Maximum-likelihood, maximum-parsimony and Bayesian inference phylogenetic analyses support <  ...[more]

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