Patellariopsidaceae Fam. Nov. With Sexual-Asexual Connection and a New Host Record for Cheirospora botryospora (Vibrisseaceae, Ascomycota)

Anuruddha Karunarathna,Erio Camporesi,Derek Peršoh,Ishani D Goonasekara,K W Thilini Chethana,Samantha C Karunarathna,Ratchadawan Cheewangkoon,Anusha H Ekanayaka,Ruvishika S Jayawardena,Kevin D Hyde,Saisamorn Lumyong

doi:10.3389/fmicb.2020.00906

Abstract

Helotiales is a polyphyletic order of Ascomycetes. The paucity of relevant molecular data and unclear connections of sexual and asexual morphs present challenges in resolving taxa within this order. In the present study, Patellariopsidaceae fam. nov., the asexual morph of Patellariopsis atrovinosa, and a new record of Cheirospora botryospora (Vibrisseaceae) on Fagus sylvatica (Fagaceae) from Italy are discussed based on morphology and molecular phylogeny. Phylogenetic analyses based on a combined sequence dataset of LSU and ITS were used to infer the phylogenetic relationships within the Helotiales. The results of this research provide a solid base to the taxonomy and phylogeny of Helotiales.

Highlights

The Leotiomycetes (Pezizomycotina) is a very diverse class and was erected when the super-class Leotiomyceta was split in to seven classes by Eriksson & Winka (Eriksson and Winka, 1997)
The taxa in Helotiales have already been subjected to several nomenclatural reinterpretations (Wang et al, 2006a)
Comparisons of major sexual and asexual morph characteristics of families in Helotiales are provided in Tables 2 and 3

Summary

Introduction

The Leotiomycetes (Pezizomycotina) is a very diverse class and was erected when the super-class Leotiomyceta was split in to seven classes by Eriksson & Winka (Eriksson and Winka, 1997). Leotiomycetes currently comprises 13 orders, out of which eight are monotypic, while over 200 genera are represented by one species only (Baral, 2016; Wijayawardene et al, 2018; Ekanayaka et al, 2019; Johnston et al, 2019). Among the orders in Leotiomycetes, Helotiales consists of the highest number of genera, incertae sedis within the familial rank Hawksworth (2001) estimated that Helotiales consists of 70,000 species. 2,334 species belonging to 423 genera in 25 families have been recorded in Helotiales. This constitutes half of all known species in Leotiomycetes (Ekanayaka et al, 2019)

Objectives

Methods

Results

Conclusion