Neža Čadež (Avtor), Nicolas Bellora (Avtor), Ricardo Ulloa (Avtor), Miha Tome (Avtor), Hrvoje Petković (Avtor), Marizeth Groenewald (Avtor), Chris Todd Hittinger (Avtor), Diego Libkind (Avtor)

Povzetek

During a survey of Nothofagus trees and their parasitic fungi in Andean Patagonia (Argentina), genetically distinct strains of Hanseniaspora were obtained from the sugar-containing stromata of parasitic Cyttaria spp. Phylogenetic analyses based on the single-gene sequences (encoding rRNA and actin) or on conserved, single-copy, orthologous genes from genome sequence assemblies revealed that these strains represent a new species closely related to Hanseniaspora valbyensis. Additionally, delimitation of this novel species was supported by genetic distance calculations using overall genome relatedness indices (OGRI) between the novel taxon and its closest relatives. To better understand the mode of speciation in Hanseniaspora, we examined genes that were retained or lost in the novel species in comparison to its closest relatives. These analyses show that, during diversification, this novel species and its closest relatives, H. valbyensis and Hanseniaspora jakobsenii, lost mitochondrial and other genes involved in the generation of precursor metabolites and energy, which could explain their slower growth and higher ethanol yields under aerobic conditions. Similarly, Hanseniaspora mollemarum lost the ability to sporulate, along with genes that are involved in meiosis and mating. Based on these findings, a formal description of the novel yeast species Hanseniaspora smithiae sp. nov. is proposed, with CRUB 1602$^H$ as the holotype.

Ključne besede

kvasovke;Hanseniaspora;taksonomija;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UL BF - Biotehniška fakulteta
UDK: 579.8:582.282.23
COBISS: 72059139 Povezava se bo odprla v novem oknu
ISSN: 1664-302X
Št. ogledov: 334
Št. prenosov: 247
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Slovenski jezik
Sekundarne ključne besede: kvasovke;Hanseniaspora;taksonomija;
Vrsta dela (COBISS): Članek v reviji
Strani: str. 1-11
Zvezek: ǂVol. ǂ12
Čas izdaje: Jul. 2021
DOI: 10.3389/fmicb.2021.679894
ID: 14119263