Genomic evidence of recombination in the basidiomycete Wallemia mellicola

Sun, Xiaohuan (author), Gostinčar, Cene (author), Fang, Chao (author), Zajc, Janja (author), Hou, Yong (author), Song, Zewei (author), Gunde-Cimerman, Nina (author)

One of the most commonly encountered species in the small basidiomycetous sub-phylum Wallemiomycotina is Wallemia mellicola, a xerotolerant fungus with a widespread distribution. To investigate the population characteristics of the species, whole genomes of twenty-five strains were sequenced. Apart from identification of four strains of clonal origin, the distances between the genomes failed to reflect either the isolation habitat of the strains or their geographical origin. Strains from different parts of the world appeared to represent a relatively homogenous and widespread population. The lack of concordance between individual gene phylogenies and the decay of linkage disequilibrium indicated that W. mellicola is at least occasionally recombining. Two versions of a putative mating-type locus have been found in all sequenced genomes, each present in approximately half of the strains. W. mellicola thus appears to be capable of (sexual) recombination and shows no signs of allopatric speciation or specialization to specific habitats.

• Language: English
• Keywords: population genomics, halotolerance, xerotolerance, basidiomycete, allergenic fungus, recombination
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: BF - Biotechnical Faculty
• Publication status: Published
• Publication version: Version of Record
• Year: 2019
• Number of pages: 15 str.
• Numbering: Vol. 10, iss. 6, art. 427
• PID: 20.500.12556/RUL-108295
• ISSN on article: 2073-4425
• DOI: 10.3390/genes10060427
• COBISS.SI-ID: 5103695
• Publication date in RUL: 26.06.2019

Record is a part of a journal

• Title: Genes
• Shortened title: Genes
• Publisher: Multidisciplinary Digital Publishing Institute (MDPI)
• ISSN: 2073-4425
• COBISS.SI-ID: 523100185

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
• Licensing start date: 04.06.2019