Tuber aztecorum sp. nov., a truffle species from Mexico belonging to the Maculatum clade (Tuberaceae, Pezizales)

By

Guevara-Guerrero, Gonzalo
Bonito, Gregory M.
Smith, Matthew E.
Healy, Roseanne
Grupe, Arthur
Cazares, Efren.
Castellano, Michael A.
Trappe, James M.

Type

Article

Date of Publication

2018

Original Publication

Nature conservation

Volume

30

Pages

61-72

Subjects

cryptic species , hypogeous fungi , Phylogeny , systematics , taxonomy

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers 2012-

Identifiers

DOI: https://doi.org/10.3897/mycokeys.30.22887

 

Abstract

A new species of truffle, T.aztecorum, is described from central Mexico. Tuberaztecorum can be distinguished from other related Tuber species synoptically by a combination of morphological features including ascospore size, pellis cells with irregular thickness, cystidia, ascoma colour and associated host (Abiesreligiosa an endemic Abies species from central Mexico); sequence variation on the ITS rDNA also distinguishes T.aztecorum from related species. A phylogenetic analysis of the ITS rDNA demonstrates that T.aztecorum belongs to the Maculatum clade and is unique from other similar small, white-cream coloured Tuber species distributed in north-eastern Mexico such as T.castilloi and T.guevarai.