Abstract
Phylogenetic analyses of combined LSU, rpb2, tub2 and ITS sequence data of representative Xylariales taxa indicated that Diabolocovidia, Didymobotryum and Vamsapriya cluster together and form a distinct clade in Xylariales. Morphological comparison also shows their distinctiveness from other families of Xylariales. Therefore, we introduce it as a novel family, Vamsapriyaceae. Based on morphological characteristics, Podosporium and Tretophragmia, which were previously classified in Ascomycota genera incertae sedis, are now included in the Vamsapriyaceae. In addition, three Vamsapriya species, V. chiangmaiensis sp. nov, V. uniseptata sp. nov, and V. indica are described and illustrated in this paper.
Highlights
Accepted: 18 October 2021Xylariales is a large order with both conspicuous and inconspicuous fruiting bodies, and unitunicate, perithecial ascomycetes [1,2]
Phylogenetic Analyses In Xylariales phylogenetic analyses, the final combined dataset of Xylariales consists of 84 strains representing fifteen families along with the outgroup Amphisphaeria sorbi (MFLUCC 13-0721) and A. thailandica (MFLU 18-0794) in Amphisphaeriales
The Bayesian posterior probability (BYPP), maximum likelihood (ML), and maximum parsimony (MP) analyses based on combined sequence data provided similar tree topology
Summary
Accepted: 18 October 2021Xylariales is a large order with both conspicuous and inconspicuous fruiting bodies, and unitunicate, perithecial ascomycetes [1,2]. Many species of Xylariales are saprobes and endophytes [3,4]. Some Xylariales species can produce secondary metabolites which are especially important for the pharmaceutical chemical industry [3,5,6]. The previous classification of Xylariales was mainly based on morphology [8,9,10,11,12,13]. With the development of molecular technology, the classification basis of Xylariales was gradually diversified [2,14,15,16]. Smith et al [2] performed the first multigene analysis to find the familial relationships within Xylariales and treated the order with seven families. Hyde et al [19] redefined the families of Sordariomycetes and accepted
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