Cytogenetic studies on holocentric chromosomes of five species of triatomines (Heteroptera: Reduviidae)

Detalhes bibliográficos
Autor(a) principal: Tavares, Mara Garcia [UNESP]
Data de Publicação: 1997
Outros Autores: De Azeredo-Oliveira, Maria Tercilia Vilela [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://hdl.handle.net/11449/224308
Resumo: The chromosome number and meiotic cycle of triatomines were investigated. All five species presented the same diploid chromosome number, 2n = 22 (20A + XY in the male). Phylogenetic relationships based on chromosomal evidence and C-banded karyotypes in the subfamily are discussed. It is suggested that differences in DNA content are mainly due to variations in the amount of C-heterocnromatin, which may be interpreted as loss and/or gain of C-regions. This interpretation is supported by the presence of meiotic and mitotic chromocentres which facilitate the transfer of C-positive material.
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spelling Cytogenetic studies on holocentric chromosomes of five species of triatomines (Heteroptera: Reduviidae)C-bandingChagas' diseaseCytogeneticsHolocentric chromosomesTriatomaThe chromosome number and meiotic cycle of triatomines were investigated. All five species presented the same diploid chromosome number, 2n = 22 (20A + XY in the male). Phylogenetic relationships based on chromosomal evidence and C-banded karyotypes in the subfamily are discussed. It is suggested that differences in DNA content are mainly due to variations in the amount of C-heterocnromatin, which may be interpreted as loss and/or gain of C-regions. This interpretation is supported by the presence of meiotic and mitotic chromocentres which facilitate the transfer of C-positive material.Departamento de Biologia Inst. Biociencias Letras Cie. E. Universidade Estadual Paulista, Sao Jose do Rio Preto, SPDepartamento de Biologia Inst. Biociencias Letras Cie. E. Universidade Estadual Paulista, Sao Jose do Rio Preto, SPUniversidade Estadual Paulista (UNESP)Tavares, Mara Garcia [UNESP]De Azeredo-Oliveira, Maria Tercilia Vilela [UNESP]2022-04-28T19:55:53Z2022-04-28T19:55:53Z1997-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article51-61Cytobios, v. 1996, n. 356, p. 51-61, 1997.0011-4529http://hdl.handle.net/11449/2243082-s2.0-0037527241Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengCytobiosinfo:eu-repo/semantics/openAccess2022-04-28T19:55:53Zoai:repositorio.unesp.br:11449/224308Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T23:38:14.713924Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Cytogenetic studies on holocentric chromosomes of five species of triatomines (Heteroptera: Reduviidae)
title Cytogenetic studies on holocentric chromosomes of five species of triatomines (Heteroptera: Reduviidae)
spellingShingle Cytogenetic studies on holocentric chromosomes of five species of triatomines (Heteroptera: Reduviidae)
Tavares, Mara Garcia [UNESP]
C-banding
Chagas' disease
Cytogenetics
Holocentric chromosomes
Triatoma
title_short Cytogenetic studies on holocentric chromosomes of five species of triatomines (Heteroptera: Reduviidae)
title_full Cytogenetic studies on holocentric chromosomes of five species of triatomines (Heteroptera: Reduviidae)
title_fullStr Cytogenetic studies on holocentric chromosomes of five species of triatomines (Heteroptera: Reduviidae)
title_full_unstemmed Cytogenetic studies on holocentric chromosomes of five species of triatomines (Heteroptera: Reduviidae)
title_sort Cytogenetic studies on holocentric chromosomes of five species of triatomines (Heteroptera: Reduviidae)
author Tavares, Mara Garcia [UNESP]
author_facet Tavares, Mara Garcia [UNESP]
De Azeredo-Oliveira, Maria Tercilia Vilela [UNESP]
author_role author
author2 De Azeredo-Oliveira, Maria Tercilia Vilela [UNESP]
author2_role author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (UNESP)
dc.contributor.author.fl_str_mv Tavares, Mara Garcia [UNESP]
De Azeredo-Oliveira, Maria Tercilia Vilela [UNESP]
dc.subject.por.fl_str_mv C-banding
Chagas' disease
Cytogenetics
Holocentric chromosomes
Triatoma
topic C-banding
Chagas' disease
Cytogenetics
Holocentric chromosomes
Triatoma
description The chromosome number and meiotic cycle of triatomines were investigated. All five species presented the same diploid chromosome number, 2n = 22 (20A + XY in the male). Phylogenetic relationships based on chromosomal evidence and C-banded karyotypes in the subfamily are discussed. It is suggested that differences in DNA content are mainly due to variations in the amount of C-heterocnromatin, which may be interpreted as loss and/or gain of C-regions. This interpretation is supported by the presence of meiotic and mitotic chromocentres which facilitate the transfer of C-positive material.
publishDate 1997
dc.date.none.fl_str_mv 1997-12-01
2022-04-28T19:55:53Z
2022-04-28T19:55:53Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv Cytobios, v. 1996, n. 356, p. 51-61, 1997.
0011-4529
http://hdl.handle.net/11449/224308
2-s2.0-0037527241
identifier_str_mv Cytobios, v. 1996, n. 356, p. 51-61, 1997.
0011-4529
2-s2.0-0037527241
url http://hdl.handle.net/11449/224308
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Cytobios
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 51-61
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1808129538979266560

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