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

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

doi:10.3897/mycokeys.30.22887

Treesearch

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

Formally Refereed

Authors:

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

Year:

2018

Type:

Scientific Journal

Station:

Northern Research Station

DOI:

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

Source:

MycoKeys. 30: 61-72.

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Abstract

A new species of truffle, T. aztecorum, is described from central Mexico. Tuber aztecorum 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 (Abies religiosa 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.

Keywords

Taxonomy, systematics, phylogeny, hypogeous fungi, cryptic species

Citation

Guevara-Guerrero, Gonzalo; Bonito, Gregory; Smith, Matthew E.; Healy, Roseanne; Grupe, Arthur; Cazares, Efren; Castellano, Michael A.; Trappe, James M. 2018. Tuber aztecorum sp. nov., a truffle species from Mexico belonging to the Maculatum clade (Tuberaceae, Pezizales). MycoKeys. 30: 61-72.