High dynamism for neo-sex chromosomes: satellite DNAs reveal complex evolution in a grasshopper

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Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorEvolutionary Biology Centre-
Autor(es): dc.creatorFerretti, Ana B. S. M. [UNESP]-
Autor(es): dc.creatorMilani, Diogo [UNESP]-
Autor(es): dc.creatorPalacios-Gimenez, Octavio M.-
Autor(es): dc.creatorRuiz-Ruano, Francisco J.-
Autor(es): dc.creatorCabral-de-Mello, Diogo C. [UNESP]-
Data de aceite: dc.date.accessioned2022-02-22T00:25:59Z-
Data de disponibilização: dc.date.available2022-02-22T00:25:59Z-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-09-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1038/s41437-020-0327-7-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/198943-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/198943-
Descrição: dc.descriptionA common characteristic of sex chromosomes is the accumulation of repetitive DNA, which accounts for their diversification and degeneration. In grasshoppers, the X0 sex-determining system in males is considered ancestral. However, in some species, derived variants like neo-XY in males evolved several times independently by Robertsonian translocation. This is the case of Ronderosia bergii, in which further large pericentromeric inversion in the neo-Y also took place, making this species particularly interesting for investigating sex chromosome evolution. Here, we characterized the satellite DNAs (satDNAs) and transposable elements (TEs) of the species to investigate the quantitative differences in repeat composition between male and female genomes putatively associated with sex chromosomes. We found a total of 53 satDNA families and 56 families of TEs. The satDNAs were 13.5% more abundant in males than in females, while TEs were just 1.02% more abundant in females. These results imply differential amplification of satDNAs on neo-Y chromosome and a minor role of TEs in sex chromosome differentiation. We showed highly differentiated neo-XY sex chromosomes owing to major amplification of satDNAs in neo-Y. Furthermore, chromosomal mapping of satDNAs suggests high turnover of neo-sex chromosomes in R. bergii at the intrapopulation level, caused by multiple paracentric inversions, amplifications, and transpositions. Finally, the species is an example of the action of repetitive DNAs in the generation of variability for sex chromosomes after the suppression of recombination, and helps understand sex chromosome evolution at the intrapopulation level.-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionDepartamento de Biologia Geral e Aplicada UNESP-Univ Estadual Paulista Instituto de Biociências/IB-
Descrição: dc.descriptionDepartment of Organismal Biology Uppsala University Evolutionary Biology Centre-
Descrição: dc.descriptionDepartment of Ecology and Genetics Uppsala University Evolutionary Biology Centre-
Descrição: dc.descriptionDepartamento de Biologia Geral e Aplicada UNESP-Univ Estadual Paulista Instituto de Biociências/IB-
Formato: dc.format124-137-
Idioma: dc.languageen-
Relação: dc.relationHeredity-
???dc.source???: dc.sourceScopus-
Título: dc.titleHigh dynamism for neo-sex chromosomes: satellite DNAs reveal complex evolution in a grasshopper-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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