Phylogenetic studies in Genabea, Myrmecocystis, and related genera.
Mycologia, 2018/3-2018/4;110(2):401-418.
Alvarado P[1], Healy R[2], Moreno G[3], Cabero J[4], Scholler M[5], Schneider A[5], Vizzini A[6], Kaounas V[7], Vidal JM[8], Hensel G[9], Rubio E[10], Mujic A[2], Smith ME[2]
Affiliations
PMID: 29792783DOI: 10.1080/00275514.2018.1451140
Impact factor: 2.958
Abstract
A multigene phylogenetic analysis of Genabea, Myrmecocystis, and related genera in Pyronemataceae was conducted to establish genetically supported generic limits. The nuc rDNA 28S gene, translation elongation factor 1-α gene (TEF1), and RNA polymerase II second-largest subunit gene (RPB2) significantly supported the monophyly of several distinct genera of hypogeous Pyronemataceae. The genetic identity of Genabea fragilis is established, and the new species Genabea hyalospora, G. urbana, Myrmecocystis mediterranea, and M. microspora are proposed to accommodate undescribed lineages. Two rare species, M. sphaerospora and M. spinospora, are tentatively identified based on collections that are morphologically similar to the original descriptions. The genus Genea was found to be monophyletic, except for G. cazaresii, which is nested among epigeous species of Humaria. The new combination Humaria cazaresii is proposed to accommodate this species.
Keywords: 6 new taxa; Genea; Humaria; Mediterranean; hypogeous; truffles
MeSH terms
Ascomycota; Cluster Analysis; DNA, Fungal; DNA, Ribosomal; Microscopy; Microscopy, Electron, Scanning; Peptide Elongation Factor 1; Phylogeny; RNA Polymerase II; RNA, Ribosomal, 28S; Sequence Analysis, DNA; Spores, Fungal
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