Polymorphisms of rDNA genes in Cyberlindnera yeast suggest birth-and-death evolution events

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorBizarria, Rodolfo-
Autor(es): dc.creatorPietrobon, Tatiane De Castro-
Autor(es): dc.creatorFerreira, Henrique-
Autor(es): dc.creatorRodrigues, Andre-
Data de aceite: dc.date.accessioned2025-08-21T17:42:16Z-
Data de disponibilização: dc.date.available2025-08-21T17:42:16Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2022-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1093/femsyr/foad032-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/297602-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/297602-
Descrição: dc.descriptionIn eukaryotes, the ribosome machinery is encoded by repeats of the ribosomal RNA genes: 26/28S, 18S, 5.8S, and 5S, structured in tandem arrays and frequently homogenized within a genome. This homogenization is thought to be driven by concerted evolution, evolving as a unit, which contributes to its target as the species barcode in modern taxonomy. However, high heterogeneity of rDNA genes has been reported, including in Saccharomycotina yeasts. Here, we describe the polymorphisms and heterogeneity of D1/D2 domains (26S rRNA) and the intergenic transcribed spacer of a new yeast species with affinities to the genus Cyberlindnera and their evolution. Both regions are not homogenized, failing the prediction of concerted evolution. Phylogenetic network analysis of cloned sequences revealed that Cyberlindnera sp. rDNAs are diverse and evolved by reticulation rather than by bifurcating tree evolution model. Predicted rRNA secondary structures also confirmed structural differences, except for some conserved hairpin loops. We hypothesize that some rDNA is inactive within this species and evolves by birth-and-death rather than concerted evolution. Our findings propel further investigation into the evolution of rDNA genes in yeasts.-
Descrição: dc.descriptionDepartment of General and Applied Biology São Paulo State University (UNESP), SP-
Descrição: dc.descriptionCenter for the Study of Social Insects São Paulo State University (UNESP), SP-
Descrição: dc.descriptionDepartment of General and Applied Biology São Paulo State University (UNESP), SP-
Descrição: dc.descriptionCenter for the Study of Social Insects São Paulo State University (UNESP), SP-
Idioma: dc.languageen-
Relação: dc.relationFEMS Yeast Research-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectbirth-and-death evolution-
Palavras-chave: dc.subjectconcerted evolution-
Palavras-chave: dc.subjectCyberlindnera-
Palavras-chave: dc.subjectrDNA polymorphisms-
Palavras-chave: dc.subjectreticulation-
Palavras-chave: dc.subjectrRNA secondary structures-
Título: dc.titlePolymorphisms of rDNA genes in Cyberlindnera yeast suggest birth-and-death evolution events-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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