The spread of satellite DNAs in euchromatin and insights into the multiple sex chromosome evolution in Hemiptera revealed by repeatome analysis of the bug Oxycarenus hyalinipennis

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversidad de Jaén-
Autor(es): dc.creatorCabral-de-Mello, Diogo C.-
Autor(es): dc.creatorMora, Pablo-
Autor(es): dc.creatorRico-Porras, José M.-
Autor(es): dc.creatorFerretti, Ana B. S. M.-
Autor(es): dc.creatorPalomeque, Teresa-
Autor(es): dc.creatorLorite, Pedro-
Data de aceite: dc.date.accessioned2025-08-21T15:11:37Z-
Data de disponibilização: dc.date.available2025-08-21T15:11:37Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2023-11-30-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1111/imb.12868-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/306003-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/306003-
Descrição: dc.descriptionSatellite DNAs (satDNAs) are highly repeated tandem sequences primarily located in heterochromatin, although their occurrence in euchromatin has been reported. Here, our aim was to advance the understanding of satDNA and multiple sex chromosome evolution in heteropterans. We combined cytogenetic and genomic approaches to study, for the first time, the satDNA composition of the genome in an Oxycarenidae bug, Oxycarenus hyalinipennis. The species exhibits a male karyotype of 2n = 19 (14A + 2 m + X1X2Y), with a highly differentiated Y chromosome, as demonstrated by C-banding and comparative genomic hybridization, revealing an enrichment of repeats from the male genome. Additionally, comparative analysis between males and females revealed that the 26 identified satDNA families are significantly biased towards male genome, accumulating in discrete regions in the Y chromosome. Exceptionally, the OhyaSat04-125 family was found to be distributed virtually throughout the entire extension of the Y chromosome. This suggests an important role of satDNA in Y chromosome differentiation, in comparison of other repeats, which collectively shows similar abundance between sexes, about 50%. Furthermore, chromosomal mapping of all satDNA families revealed an unexpected high spread in euchromatic regions, covering the entire extension, irrespective of their abundance. Only discrete regions of heterochromatin on the Y chromosome and of the m-chromosomes (peculiar chromosomes commonly observed in heteropterans) were enriched with satDNAs. The putative causes of the intense enrichment of satDNAs in euchromatin are discussed, including the possible existence of burst cycles similar to transposable elements and as a result of holocentricity. These data challenge the classical notion that euchromatin is not enriched with satDNAs.-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionJunta de Andalucía-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionDepartamento de Biologia Geral e Aplicada Instituto de Biociências/IB UNESP—Universidade Estadual Paulista-
Descrição: dc.descriptionDepartamento de Biología Experimental Área de Genética Universidad de Jaén-
Descrição: dc.descriptionDepartamento de Biologia Geral e Aplicada Instituto de Biociências/IB UNESP—Universidade Estadual Paulista-
Descrição: dc.descriptionFAPESP: 2019/19069-7-
Descrição: dc.descriptionCNPq: 308290/2020-8-
Formato: dc.format725-737-
Idioma: dc.languageen-
Relação: dc.relationInsect Molecular Biology-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectfluorescence in situ hybridization-
Palavras-chave: dc.subjectheterochromatin-
Palavras-chave: dc.subjectHeteroptera-
Palavras-chave: dc.subjectrepetitive DNA-
Palavras-chave: dc.subjectsatellite DNA-
Palavras-chave: dc.subjecttrue bug-
Título: dc.titleThe spread of satellite DNAs in euchromatin and insights into the multiple sex chromosome evolution in Hemiptera revealed by repeatome analysis of the bug Oxycarenus hyalinipennis-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

Não existem arquivos associados a este item.