Repetitive DNAs and shrink genomes: a chromosomal analysis in nine Columbidae species (Aves, Columbiformes)
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/267843 |
Resumo: | An extensive karyotype variation is found among species belonging to the Columbidae family of birds (Columbiformes), both in diploid number and chromosomal morphology. Although clusters of repetitive DNA sequences play an important role in chromosomal instability, and therefore in chromosomal rearrangements, little is known about their distribution and amount in avian genomes. The aim of this study was to analyze the distribution of 11 distinct microsatellite sequences, as well as clusters of 18S rDNA, in nine different Columbidae species, correlating their distribution with the occurrence of chromosomal rearrangements. We found 2n values ranging from 76 to 86 and nine out of 11 microsatellite sequences showed distinct hybridization signals among the analyzed species. The accumulation of microsatellite repeats was found preferentially in the centromeric region of macro and microchromosomes, and in the W chromosome. Additionally, pair 2 showed the accumulation of several microsatellites in different combinations and locations in the distinct species, suggesting the occurrence of intrachromosomal rearrangements, as well as a possible fission of this pair in Geotrygon species. Therefore, although birds have a smaller amount of repetitive sequences when compared to other Tetrapoda, these seem to play an important role in the karyotype evolution of these species. |
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Kretschmer, RafaelOliveira, Thays Duarte deFuro, Ivanete de OliveiraSilva, Fabio Augusto OliveiraGunski, Ricardo JoséGarnero, Analía del ValleCioffi, Marcelo de BelloOliveira, Edivaldo Herculano CorrêaFreitas, Thales Renato Ochotorena de2023-11-30T03:24:23Z20181415-4757http://hdl.handle.net/10183/267843001103402An extensive karyotype variation is found among species belonging to the Columbidae family of birds (Columbiformes), both in diploid number and chromosomal morphology. Although clusters of repetitive DNA sequences play an important role in chromosomal instability, and therefore in chromosomal rearrangements, little is known about their distribution and amount in avian genomes. The aim of this study was to analyze the distribution of 11 distinct microsatellite sequences, as well as clusters of 18S rDNA, in nine different Columbidae species, correlating their distribution with the occurrence of chromosomal rearrangements. We found 2n values ranging from 76 to 86 and nine out of 11 microsatellite sequences showed distinct hybridization signals among the analyzed species. The accumulation of microsatellite repeats was found preferentially in the centromeric region of macro and microchromosomes, and in the W chromosome. Additionally, pair 2 showed the accumulation of several microsatellites in different combinations and locations in the distinct species, suggesting the occurrence of intrachromosomal rearrangements, as well as a possible fission of this pair in Geotrygon species. Therefore, although birds have a smaller amount of repetitive sequences when compared to other Tetrapoda, these seem to play an important role in the karyotype evolution of these species.application/pdfengGenetics and molecular biology. Ribeirão Preto. Vol. 41, no. 1 (Marc. 2018), p. 98-106DNAColumbidaeCromossomos sexuaisHibridização in situ fluorescenteBirdsMicrosatellitesSex chromosomesChromosomal rearrangements.Repetitive DNAs and shrink genomes: a chromosomal analysis in nine Columbidae species (Aves, Columbiformes)info:eu-repo/semantics/articleinfo:eu-repo/semantics/otherinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001103402.pdf.txt001103402.pdf.txtExtracted Texttext/plain37087http://www.lume.ufrgs.br/bitstream/10183/267843/2/001103402.pdf.txt1453fe689c2fc2475262d7cfed6081a5MD52ORIGINAL001103402.pdfTexto completo (inglês)application/pdf1549039http://www.lume.ufrgs.br/bitstream/10183/267843/1/001103402.pdfa5fa7d0ac296ea2ab971077f080eb365MD5110183/2678432024-05-23 06:43:24.759833oai:www.lume.ufrgs.br:10183/267843Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2024-05-23T09:43:24Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Repetitive DNAs and shrink genomes: a chromosomal analysis in nine Columbidae species (Aves, Columbiformes) |
title |
Repetitive DNAs and shrink genomes: a chromosomal analysis in nine Columbidae species (Aves, Columbiformes) |
spellingShingle |
Repetitive DNAs and shrink genomes: a chromosomal analysis in nine Columbidae species (Aves, Columbiformes) Kretschmer, Rafael DNA Columbidae Cromossomos sexuais Hibridização in situ fluorescente Birds Microsatellites Sex chromosomes Chromosomal rearrangements. |
title_short |
Repetitive DNAs and shrink genomes: a chromosomal analysis in nine Columbidae species (Aves, Columbiformes) |
title_full |
Repetitive DNAs and shrink genomes: a chromosomal analysis in nine Columbidae species (Aves, Columbiformes) |
title_fullStr |
Repetitive DNAs and shrink genomes: a chromosomal analysis in nine Columbidae species (Aves, Columbiformes) |
title_full_unstemmed |
Repetitive DNAs and shrink genomes: a chromosomal analysis in nine Columbidae species (Aves, Columbiformes) |
title_sort |
Repetitive DNAs and shrink genomes: a chromosomal analysis in nine Columbidae species (Aves, Columbiformes) |
author |
Kretschmer, Rafael |
author_facet |
Kretschmer, Rafael Oliveira, Thays Duarte de Furo, Ivanete de Oliveira Silva, Fabio Augusto Oliveira Gunski, Ricardo José Garnero, Analía del Valle Cioffi, Marcelo de Bello Oliveira, Edivaldo Herculano Corrêa Freitas, Thales Renato Ochotorena de |
author_role |
author |
author2 |
Oliveira, Thays Duarte de Furo, Ivanete de Oliveira Silva, Fabio Augusto Oliveira Gunski, Ricardo José Garnero, Analía del Valle Cioffi, Marcelo de Bello Oliveira, Edivaldo Herculano Corrêa Freitas, Thales Renato Ochotorena de |
author2_role |
author author author author author author author author |
dc.contributor.author.fl_str_mv |
Kretschmer, Rafael Oliveira, Thays Duarte de Furo, Ivanete de Oliveira Silva, Fabio Augusto Oliveira Gunski, Ricardo José Garnero, Analía del Valle Cioffi, Marcelo de Bello Oliveira, Edivaldo Herculano Corrêa Freitas, Thales Renato Ochotorena de |
dc.subject.por.fl_str_mv |
DNA Columbidae Cromossomos sexuais Hibridização in situ fluorescente |
topic |
DNA Columbidae Cromossomos sexuais Hibridização in situ fluorescente Birds Microsatellites Sex chromosomes Chromosomal rearrangements. |
dc.subject.eng.fl_str_mv |
Birds Microsatellites Sex chromosomes Chromosomal rearrangements. |
description |
An extensive karyotype variation is found among species belonging to the Columbidae family of birds (Columbiformes), both in diploid number and chromosomal morphology. Although clusters of repetitive DNA sequences play an important role in chromosomal instability, and therefore in chromosomal rearrangements, little is known about their distribution and amount in avian genomes. The aim of this study was to analyze the distribution of 11 distinct microsatellite sequences, as well as clusters of 18S rDNA, in nine different Columbidae species, correlating their distribution with the occurrence of chromosomal rearrangements. We found 2n values ranging from 76 to 86 and nine out of 11 microsatellite sequences showed distinct hybridization signals among the analyzed species. The accumulation of microsatellite repeats was found preferentially in the centromeric region of macro and microchromosomes, and in the W chromosome. Additionally, pair 2 showed the accumulation of several microsatellites in different combinations and locations in the distinct species, suggesting the occurrence of intrachromosomal rearrangements, as well as a possible fission of this pair in Geotrygon species. Therefore, although birds have a smaller amount of repetitive sequences when compared to other Tetrapoda, these seem to play an important role in the karyotype evolution of these species. |
publishDate |
2018 |
dc.date.issued.fl_str_mv |
2018 |
dc.date.accessioned.fl_str_mv |
2023-11-30T03:24:23Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/other |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/267843 |
dc.identifier.issn.pt_BR.fl_str_mv |
1415-4757 |
dc.identifier.nrb.pt_BR.fl_str_mv |
001103402 |
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1415-4757 001103402 |
url |
http://hdl.handle.net/10183/267843 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Genetics and molecular biology. Ribeirão Preto. Vol. 41, no. 1 (Marc. 2018), p. 98-106 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
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