Satellite DNAs are conserved and differentially transcribed among Gryllus cricket species

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dc.contributor.authorPalacios-Gimenez, Octavio Manuel [UNESP]
dc.contributor.authorBardella, Vanessa Bellini [UNESP]
dc.contributor.authorLemos, Bernardo
dc.contributor.authorCabral-De-Mello, Diogo Cavalcanti [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionHarvard University T. H. Chan School of Public Health
dc.date.accessioned2018-12-11T16:53:11Z
dc.date.available2018-12-11T16:53:11Z
dc.date.issued2018-04-01
dc.description.abstractSatellite DNA (satDNA) is an abundant class of non-coding repetitive DNA that is preferentially found as tandemly repeated arrays in gene-poor heterochromatin but is also present in gene-rich euchromatin. Here, we used DNA- and RNA-seq from Gryllus assimilis to address the content and transcriptional patterns of satDNAs. We also mapped RNA-seq libraries for other Gryllus species against the satDNAs found in G. assimilis and G. bimaculatus genomes to investigate their evolutionary conservation and transcriptional profiles in Gryllus. Through DNA-seq read clustering analysis using RepeatExplorer, dotplots analysis and fluorescence in situ hybridization mapping, we found that รข 1/44% of the G. assimilis genome is represented by 11 well-defined A + T-rich satDNA families. These are mainly located in heterochromatic areas, with some repeats able to form high-order repeat structures. By in silico transcriptional analysis we identified satDNAs that are conserved in Gryllus but differentially transcribed. The data regarding satDNA presence in G. assimilis genome were discussed in an evolutionary context, with transcriptional data enabling comparisons between sexes and across tissues when possible. We discuss hypotheses for the conservation and transcription of satDNAs in Gryllus, which might result from their role in sexual differentiation at the chromatin level, heterochromatin formation and centromeric function.en
dc.description.affiliationDepartamento de Biologia Instituto de Biociรชncias/IB UNESP-Univ Estadual Paulista
dc.description.affiliationProgram in Molecular and Integrative Physiological Sciences Department of Environmental Health Harvard University T. H. Chan School of Public Health
dc.description.affiliationUnespDepartamento de Biologia Instituto de Biociรชncias/IB UNESP-Univ Estadual Paulista
dc.description.sponsorshipFundaรงรฃo de Amparo ร  Pesquisa do Estado de Sรฃo Paulo (FAPESP)
dc.description.sponsorshipIdFAPESP: 2014/11763-8
dc.description.sponsorshipIdFAPESP: 2015/16661-1
dc.format.extent137-147
dc.identifierhttp://dx.doi.org/10.1093/dnares/dsx044
dc.identifier.citationDNA Research, v. 25, n. 2, p. 137-147, 2018.
dc.identifier.doi10.1093/dnares/dsx044
dc.identifier.file2-s2.0-85046694725.pdf
dc.identifier.issn1756-1663
dc.identifier.issn1340-2838
dc.identifier.scopus2-s2.0-85046694725
dc.identifier.urihttp://hdl.handle.net/11449/170975
dc.language.isoeng
dc.relation.ispartofDNA Research
dc.relation.ispartofsjr2,866
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectevolution
dc.subjectFISH mapping
dc.subjectRNA mapping
dc.subjectsatellite DNA
dc.titleSatellite DNAs are conserved and differentially transcribed among Gryllus cricket speciesen
dc.typeArtigo

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