Three decades of studies on chromosomal polymorphism of Drosophila willistoni and description of fifty different rearrangements

Detalhes bibliográficos
Autor(a) principal: Rohde,Claudia
Data de Publicação: 2012
Outros Autores: Valente,Vera Lúcia S.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Genetics and Molecular Biology
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572012000600012
Resumo: Drosophila willistoni (Insecta, Diptera) is considered a paradigm for evolutionary studies. Their chromosomes are characterized by multiple paracentric inversions that make it hard to identify and describe chromosomal poly-morphisms. In the present report we attempted to systematize the description of all the 50 inversions found in the last three decades, since we have been studying the chromosomes of several individuals of 30 different populations, including the one used in the genome sequencing project (Gd-H4-1). We present the photographic register of 11 arrangements in the left arm of the X chromosome (XL), eight in the right arm (XR), 10 in the left arm of chromosome II (IIL), eight in its right arm (IIR) and 13 in chromosome III. This information also includes their breakpoints on the reference photomap. A clear geographic difference was detected in XL and XR, with different fixed arrangements depending on the origin of the population studied. Through the comparison of all X arrangements it was possible to infer the putative ancestral arrangements, i.e., those related to all the remaining arrangements through the small number of inversions that occurred in the past, which we will call XL-A and XR-A. In the autosomes (IIL/IIR and III), fixed inversions were detected, but most are segregating in different frequencies along the geographical distribution of the D. willistoni populations.
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spelling Three decades of studies on chromosomal polymorphism of Drosophila willistoni and description of fifty different rearrangementscytogeneticpolytene chromosomesinversionsDrosophila willistoniDrosophila willistoni (Insecta, Diptera) is considered a paradigm for evolutionary studies. Their chromosomes are characterized by multiple paracentric inversions that make it hard to identify and describe chromosomal poly-morphisms. In the present report we attempted to systematize the description of all the 50 inversions found in the last three decades, since we have been studying the chromosomes of several individuals of 30 different populations, including the one used in the genome sequencing project (Gd-H4-1). We present the photographic register of 11 arrangements in the left arm of the X chromosome (XL), eight in the right arm (XR), 10 in the left arm of chromosome II (IIL), eight in its right arm (IIR) and 13 in chromosome III. This information also includes their breakpoints on the reference photomap. A clear geographic difference was detected in XL and XR, with different fixed arrangements depending on the origin of the population studied. Through the comparison of all X arrangements it was possible to infer the putative ancestral arrangements, i.e., those related to all the remaining arrangements through the small number of inversions that occurred in the past, which we will call XL-A and XR-A. In the autosomes (IIL/IIR and III), fixed inversions were detected, but most are segregating in different frequencies along the geographical distribution of the D. willistoni populations.Sociedade Brasileira de Genética2012-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572012000600012Genetics and Molecular Biology v.35 n.4 suppl.1 2012reponame:Genetics and Molecular Biologyinstname:Sociedade Brasileira de Genética (SBG)instacron:SBG10.1590/S1415-47572012000600012info:eu-repo/semantics/openAccessRohde,ClaudiaValente,Vera Lúcia S.eng2012-12-18T00:00:00Zoai:scielo:S1415-47572012000600012Revistahttp://www.gmb.org.br/ONGhttps://old.scielo.br/oai/scielo-oai.php||editor@gmb.org.br1678-46851415-4757opendoar:2012-12-18T00:00Genetics and Molecular Biology - Sociedade Brasileira de Genética (SBG)false
dc.title.none.fl_str_mv Three decades of studies on chromosomal polymorphism of Drosophila willistoni and description of fifty different rearrangements
title Three decades of studies on chromosomal polymorphism of Drosophila willistoni and description of fifty different rearrangements
spellingShingle Three decades of studies on chromosomal polymorphism of Drosophila willistoni and description of fifty different rearrangements
Rohde,Claudia
cytogenetic
polytene chromosomes
inversions
Drosophila willistoni
title_short Three decades of studies on chromosomal polymorphism of Drosophila willistoni and description of fifty different rearrangements
title_full Three decades of studies on chromosomal polymorphism of Drosophila willistoni and description of fifty different rearrangements
title_fullStr Three decades of studies on chromosomal polymorphism of Drosophila willistoni and description of fifty different rearrangements
title_full_unstemmed Three decades of studies on chromosomal polymorphism of Drosophila willistoni and description of fifty different rearrangements
title_sort Three decades of studies on chromosomal polymorphism of Drosophila willistoni and description of fifty different rearrangements
author Rohde,Claudia
author_facet Rohde,Claudia
Valente,Vera Lúcia S.
author_role author
author2 Valente,Vera Lúcia S.
author2_role author
dc.contributor.author.fl_str_mv Rohde,Claudia
Valente,Vera Lúcia S.
dc.subject.por.fl_str_mv cytogenetic
polytene chromosomes
inversions
Drosophila willistoni
topic cytogenetic
polytene chromosomes
inversions
Drosophila willistoni
description Drosophila willistoni (Insecta, Diptera) is considered a paradigm for evolutionary studies. Their chromosomes are characterized by multiple paracentric inversions that make it hard to identify and describe chromosomal poly-morphisms. In the present report we attempted to systematize the description of all the 50 inversions found in the last three decades, since we have been studying the chromosomes of several individuals of 30 different populations, including the one used in the genome sequencing project (Gd-H4-1). We present the photographic register of 11 arrangements in the left arm of the X chromosome (XL), eight in the right arm (XR), 10 in the left arm of chromosome II (IIL), eight in its right arm (IIR) and 13 in chromosome III. This information also includes their breakpoints on the reference photomap. A clear geographic difference was detected in XL and XR, with different fixed arrangements depending on the origin of the population studied. Through the comparison of all X arrangements it was possible to infer the putative ancestral arrangements, i.e., those related to all the remaining arrangements through the small number of inversions that occurred in the past, which we will call XL-A and XR-A. In the autosomes (IIL/IIR and III), fixed inversions were detected, but most are segregating in different frequencies along the geographical distribution of the D. willistoni populations.
publishDate 2012
dc.date.none.fl_str_mv 2012-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572012000600012
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572012000600012
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1415-47572012000600012
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Genética
publisher.none.fl_str_mv Sociedade Brasileira de Genética
dc.source.none.fl_str_mv Genetics and Molecular Biology v.35 n.4 suppl.1 2012
reponame:Genetics and Molecular Biology
instname:Sociedade Brasileira de Genética (SBG)
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repository.name.fl_str_mv Genetics and Molecular Biology - Sociedade Brasileira de Genética (SBG)
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