Meiotic studies in Lygaeus alboornatus Blanchard 1852 (Heteroptera, Lygaeidae, Lygaeinae)

Autores
Bressa, María José; Papeschi, Alba G.; Larramendy, Marcelo Luis
Año de publicación
2002
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The subfamily Lygaeinae comprises 58 genera with about 500 species distributed world-wide. Despite the great biodiversity of the taxon, cytogenetic data of the group is scarce. To date, only 26 species belonging to 12 genera have been cytogenetically described. As it is the rule for the order Heteroptera, all the species possess holokinetic chromosomes, and a pre-reductional type of meiosis, namely at anaphase I the autosomal bivalents divide reductionally while the sex chromosomes are achiasmatic and divide equationally. Available data reveal that all the Lygaeinae are characterised by a modal diploid number of 14 and an XY/XX sex chromosome determining system. In the present study the male meiotic development of Lygaeus alboornatus from Argentina is analysed. The results demonstrate that the species, though sharing the basic chromosomal features from Lygaeinae, has a diploid number of 12 (10+XY), being this chromosome number the lowest reported so far for the subfamily.
Facultad de Ciencias Naturales y Museo
Materia
Ciencias Naturales
Heteroptera
Holokinetic chromosomes
Lygaeinae
Lygaeus alboornatus
Meiosis
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/83378
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/83378
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network_name_str SEDICI (UNLP)
spelling Meiotic studies in Lygaeus alboornatus Blanchard 1852 (Heteroptera, Lygaeidae, Lygaeinae)Bressa, María JoséPapeschi, Alba G.Larramendy, Marcelo LuisCiencias NaturalesHeteropteraHolokinetic chromosomesLygaeinaeLygaeus alboornatusMeiosisThe subfamily Lygaeinae comprises 58 genera with about 500 species distributed world-wide. Despite the great biodiversity of the taxon, cytogenetic data of the group is scarce. To date, only 26 species belonging to 12 genera have been cytogenetically described. As it is the rule for the order Heteroptera, all the species possess holokinetic chromosomes, and a pre-reductional type of meiosis, namely at anaphase I the autosomal bivalents divide reductionally while the sex chromosomes are achiasmatic and divide equationally. Available data reveal that all the Lygaeinae are characterised by a modal diploid number of 14 and an XY/XX sex chromosome determining system. In the present study the male meiotic development of Lygaeus alboornatus from Argentina is analysed. The results demonstrate that the species, though sharing the basic chromosomal features from Lygaeinae, has a diploid number of 12 (10+XY), being this chromosome number the lowest reported so far for the subfamily.Facultad de Ciencias Naturales y Museo2002info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf15-19http://sedici.unlp.edu.ar/handle/10915/83378enginfo:eu-repo/semantics/altIdentifier/issn/0008-7114info:eu-repo/semantics/altIdentifier/doi/10.1080/00087114.2002.10589253info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-03T10:48:09Zoai:sedici.unlp.edu.ar:10915/83378Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-03 10:48:09.736SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Meiotic studies in Lygaeus alboornatus Blanchard 1852 (Heteroptera, Lygaeidae, Lygaeinae)
title Meiotic studies in Lygaeus alboornatus Blanchard 1852 (Heteroptera, Lygaeidae, Lygaeinae)
spellingShingle Meiotic studies in Lygaeus alboornatus Blanchard 1852 (Heteroptera, Lygaeidae, Lygaeinae)
Bressa, María José
Ciencias Naturales
Heteroptera
Holokinetic chromosomes
Lygaeinae
Lygaeus alboornatus
Meiosis
title_short Meiotic studies in Lygaeus alboornatus Blanchard 1852 (Heteroptera, Lygaeidae, Lygaeinae)
title_full Meiotic studies in Lygaeus alboornatus Blanchard 1852 (Heteroptera, Lygaeidae, Lygaeinae)
title_fullStr Meiotic studies in Lygaeus alboornatus Blanchard 1852 (Heteroptera, Lygaeidae, Lygaeinae)
title_full_unstemmed Meiotic studies in Lygaeus alboornatus Blanchard 1852 (Heteroptera, Lygaeidae, Lygaeinae)
title_sort Meiotic studies in Lygaeus alboornatus Blanchard 1852 (Heteroptera, Lygaeidae, Lygaeinae)
dc.creator.none.fl_str_mv Bressa, María José
Papeschi, Alba G.
Larramendy, Marcelo Luis
author Bressa, María José
author_facet Bressa, María José
Papeschi, Alba G.
Larramendy, Marcelo Luis
author_role author
author2 Papeschi, Alba G.
Larramendy, Marcelo Luis
author2_role author
author
dc.subject.none.fl_str_mv Ciencias Naturales
Heteroptera
Holokinetic chromosomes
Lygaeinae
Lygaeus alboornatus
Meiosis
topic Ciencias Naturales
Heteroptera
Holokinetic chromosomes
Lygaeinae
Lygaeus alboornatus
Meiosis
dc.description.none.fl_txt_mv The subfamily Lygaeinae comprises 58 genera with about 500 species distributed world-wide. Despite the great biodiversity of the taxon, cytogenetic data of the group is scarce. To date, only 26 species belonging to 12 genera have been cytogenetically described. As it is the rule for the order Heteroptera, all the species possess holokinetic chromosomes, and a pre-reductional type of meiosis, namely at anaphase I the autosomal bivalents divide reductionally while the sex chromosomes are achiasmatic and divide equationally. Available data reveal that all the Lygaeinae are characterised by a modal diploid number of 14 and an XY/XX sex chromosome determining system. In the present study the male meiotic development of Lygaeus alboornatus from Argentina is analysed. The results demonstrate that the species, though sharing the basic chromosomal features from Lygaeinae, has a diploid number of 12 (10+XY), being this chromosome number the lowest reported so far for the subfamily.
Facultad de Ciencias Naturales y Museo
description The subfamily Lygaeinae comprises 58 genera with about 500 species distributed world-wide. Despite the great biodiversity of the taxon, cytogenetic data of the group is scarce. To date, only 26 species belonging to 12 genera have been cytogenetically described. As it is the rule for the order Heteroptera, all the species possess holokinetic chromosomes, and a pre-reductional type of meiosis, namely at anaphase I the autosomal bivalents divide reductionally while the sex chromosomes are achiasmatic and divide equationally. Available data reveal that all the Lygaeinae are characterised by a modal diploid number of 14 and an XY/XX sex chromosome determining system. In the present study the male meiotic development of Lygaeus alboornatus from Argentina is analysed. The results demonstrate that the species, though sharing the basic chromosomal features from Lygaeinae, has a diploid number of 12 (10+XY), being this chromosome number the lowest reported so far for the subfamily.
publishDate 2002
dc.date.none.fl_str_mv 2002
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/83378
url http://sedici.unlp.edu.ar/handle/10915/83378
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0008-7114
info:eu-repo/semantics/altIdentifier/doi/10.1080/00087114.2002.10589253
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
15-19
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 13.13397

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