Revising the Schizoparmaceae: Coniella and its synonyms Pilidiella and Schizoparme

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• 作者：L.V. Alvarez¹ ; J.Z. Groenewald² ; P.W. Crous² ; ³ ; ⁴ ; ^{p.crous@cbs.knaw.nl}
• 关键词：Diaporthales ; DNA phylogeny ; phytopathogenic fungi ; Sordariomycetes ; systematics
• 刊名：Studies in Mycology
• 出版年：2016
• 出版时间：September 2016
• 年：2016
• 卷：85
• 期：Complete
• 页码：1-34
• 全文大小：14829 K
• 卷排序：85

文摘

The asexual genera Coniella (1918) and Pilidiella (1927), including their sexual morphs in Schizoparme (1923), have a cosmopolitan distribution and are associated with foliar, fruit, leaf, stem and root diseases on a wide variety of hosts. Species of these genera sometimes occur as secondary invaders of plant tissues infected by other organisms or that are injured by other causes. Several studies published over the last few decades had conflicting ideas as to whether Coniella, Pilidiella and Schizoparme should be regarded as synonymous or as separate genera. The present study aims to resolve the generic classification of these genera through phylogenetic analyses of the concatenated alignment of partial LSU nrDNA, rpb2, ITS nrDNA and tef1 sequence data of 117 isolates, combined with their morphology. Results revealed that all strains cluster in a single well-supported clade. Conidial colour, traditionally the distinguishing character between Coniella and Pilidiella, evolved multiple times throughout the clade, and is not a good character at generic level in Schizoparmaceae. The three genera should therefore be regarded as synonymous, with the older name Coniella having priority. Furthermore, this study delineated 13 new species, and new combinations were proposed for a further 15 species.