Lineages in Nectriaceae: re-evaluating the generic status of Ilyonectria and allied genera

Lorenzo Lombard; Nicolaas A. van der Merwe; Johannes Z. Groenewald; Pedro W. Crous

doi:10.14601/Phytopathol_Mediterr-14976

Lineages in Nectriaceae: re-evaluating the generic status of Ilyonectria and allied genera

Lorenzo Lombard, Nicolaas A. van der Merwe, Johannes Z. Groenewald, Pedro W. Crous

Research output: Contribution to journal/periodical › Article › Scientific › peer-review

Abstract

Genera with cylindrocarpon-like asexual morphs are important pathogens of various herbaceous and woody plant hosts globally. Recent multi-gene studies of this generic complex indicated that the genus Ilyonectria is paraphyletic. The present study was therefore initiated to re-evaluate the generic status of Ilyonectria and at the same time address some taxonomic irregularities in the genera Cylindrodendrum and Neonectria. Using multi-gene DNA data and morphological comparisons, the genus Dactylonectria is introduced with 10 new combinations, several of which were previously treated in Ilyonectria. Two new species, D. hordeicola and D. pinicola, are also described. Furthermore, one new combination is provided in the genus Cylindrodendrum, and three new combinations in the genus Neonectria, for species previously treated in the genera Acremonium, Cylindrocarpon, Nectria and Neonectria. The aquatic genus Heliscus is reduced to synonymy under Neonectria.

Original language	English
Pages (from-to)	515-532
Journal	Phytopathologia Mediterranea
Volume	53
Issue number	3
DOIs	https://doi.org/10.14601/Phytopathol_Mediterr-14976
Publication status	Published - Nov 2014

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title = "Lineages in Nectriaceae: re-evaluating the generic status of Ilyonectria and allied genera",

abstract = "Genera with cylindrocarpon-like asexual morphs are important pathogens of various herbaceous and woody plant hosts globally. Recent multi-gene studies of this generic complex indicated that the genus Ilyonectria is paraphyletic. The present study was therefore initiated to re-evaluate the generic status of Ilyonectria and at the same time address some taxonomic irregularities in the genera Cylindrodendrum and Neonectria. Using multi-gene DNA data and morphological comparisons, the genus Dactylonectria is introduced with 10 new combinations, several of which were previously treated in Ilyonectria. Two new species, D. hordeicola and D. pinicola, are also described. Furthermore, one new combination is provided in the genus Cylindrodendrum, and three new combinations in the genus Neonectria, for species previously treated in the genera Acremonium, Cylindrocarpon, Nectria and Neonectria. The aquatic genus Heliscus is reduced to synonymy under Neonectria.",

author = "Lorenzo Lombard and {van der Merwe}, {Nicolaas A.} and Groenewald, {Johannes Z.} and Crous, {Pedro W.}",

year = "2014",

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journal = "Phytopathologia Mediterranea",

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AU - Lombard, Lorenzo

AU - van der Merwe, Nicolaas A.

AU - Groenewald, Johannes Z.

AU - Crous, Pedro W.

PY - 2014/11

Y1 - 2014/11

N2 - Genera with cylindrocarpon-like asexual morphs are important pathogens of various herbaceous and woody plant hosts globally. Recent multi-gene studies of this generic complex indicated that the genus Ilyonectria is paraphyletic. The present study was therefore initiated to re-evaluate the generic status of Ilyonectria and at the same time address some taxonomic irregularities in the genera Cylindrodendrum and Neonectria. Using multi-gene DNA data and morphological comparisons, the genus Dactylonectria is introduced with 10 new combinations, several of which were previously treated in Ilyonectria. Two new species, D. hordeicola and D. pinicola, are also described. Furthermore, one new combination is provided in the genus Cylindrodendrum, and three new combinations in the genus Neonectria, for species previously treated in the genera Acremonium, Cylindrocarpon, Nectria and Neonectria. The aquatic genus Heliscus is reduced to synonymy under Neonectria.

AB - Genera with cylindrocarpon-like asexual morphs are important pathogens of various herbaceous and woody plant hosts globally. Recent multi-gene studies of this generic complex indicated that the genus Ilyonectria is paraphyletic. The present study was therefore initiated to re-evaluate the generic status of Ilyonectria and at the same time address some taxonomic irregularities in the genera Cylindrodendrum and Neonectria. Using multi-gene DNA data and morphological comparisons, the genus Dactylonectria is introduced with 10 new combinations, several of which were previously treated in Ilyonectria. Two new species, D. hordeicola and D. pinicola, are also described. Furthermore, one new combination is provided in the genus Cylindrodendrum, and three new combinations in the genus Neonectria, for species previously treated in the genera Acremonium, Cylindrocarpon, Nectria and Neonectria. The aquatic genus Heliscus is reduced to synonymy under Neonectria.

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DO - 10.14601/Phytopathol_Mediterr-14976

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VL - 53

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JO - Phytopathologia Mediterranea

JF - Phytopathologia Mediterranea

IS - 3

ER -

Lineages in Nectriaceae: re-evaluating the generic status of Ilyonectria and allied genera

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