Spermatogenesis and nucleolar activity in Triatoma klugi (Triatomine, Heteroptera)
dc.contributor.author | da Costa, Laiana Cristina [UNESP] | |
dc.contributor.author | Vilela de Azeredo-Oliveira, Maria Tercilia [UNESP] | |
dc.contributor.author | Tartarotti, Ester [UNESP] | |
dc.contributor.institution | Universidade Estadual Paulista (Unesp) | |
dc.date.accessioned | 2014-05-20T14:00:53Z | |
dc.date.available | 2014-05-20T14:00:53Z | |
dc.date.issued | 2008-01-01 | |
dc.description.abstract | Triatoma klugi is a Chagas disease vector in the Rio Grande do Sul State. Triatominae chromosomes are holocentric and sex chromosomes segregation is post-reductional. In this paper we describe the karyotype of male T. klugi and a meiotic analysis including the nucleolar behavior during spermatogenesis. Testis cells were analyzed after lacto-acetic orcein and silver nitrate staining. Two autosomes and the heterochromosomes presented nucleolar activity (Ag-NORs) during diplotene-diakinesis. The analysis of metaphase I and II revealed a karyotype with 2n = 20+XY. In metaphase I a prominent nucleolar mass was observed in the cell periphery and small silver grains were detected in metaphase II. During anaphase, the chromosomes segregated in parallel and a typical holocentric late migration behavior was observed. The restoration of the nucleolus was an important feature in this phase. During telophase nucleolar masses persisted and in early spermiogenesis the spermatids presented a small peripheral mass until elongation. The present study is a contribution to the study of chromatin behavior and nucleolar persistence in meiosis. | en |
dc.description.affiliation | Univ Estadual Paulista, Inst Biociencias Letras & Ciencias Exatas, Dept Biol, BR-15054000 Sao Jose do Rio Preto, Brazil | |
dc.description.affiliationUnesp | Univ Estadual Paulista, Inst Biociencias Letras & Ciencias Exatas, Dept Biol, BR-15054000 Sao Jose do Rio Preto, Brazil | |
dc.format.extent | 438-444 | |
dc.identifier | http://dx.doi.org/10.1590/S1415-47572008000300008 | |
dc.identifier.citation | Genetics and Molecular Biology. Ribeirao Pret: Soc Brasil Genetica, v. 31, n. 2, p. 438-444, 2008. | |
dc.identifier.file | S1415-47572008000300008.pdf | |
dc.identifier.issn | 1415-4757 | |
dc.identifier.scielo | S1415-47572008000300008 | |
dc.identifier.uri | http://hdl.handle.net/11449/21510 | |
dc.identifier.wos | WOS:000256957500008 | |
dc.language.iso | eng | |
dc.publisher | Soc Brasil Genetica | |
dc.relation.ispartof | Genetics and Molecular Biology | |
dc.relation.ispartofjcr | 1.493 | |
dc.relation.ispartofsjr | 0,638 | |
dc.rights.accessRights | Acesso aberto | |
dc.source | Web of Science | |
dc.subject | Triatoma klugi | en |
dc.subject | Triatomine | en |
dc.subject | Cytogenetic | en |
dc.subject | Nucleolus | en |
dc.subject | Karyotype | en |
dc.subject | Meiosis | en |
dc.title | Spermatogenesis and nucleolar activity in Triatoma klugi (Triatomine, Heteroptera) | en |
dc.type | Artigo | |
dcterms.license | http://www.scielo.br/revistas/gmb/iaboutj.htm | |
dcterms.rightsHolder | Soc Brasil Genetica | |
unesp.campus | Universidade Estadual Paulista (Unesp), Instituto de Biociências Letras e Ciências Exatas, São José do Rio Preto | pt |
unesp.department | Biologia - IBILCE | pt |
Arquivos
Pacote Original
1 - 1 de 1
Carregando...
- Nome:
- S1415-47572008000300008.pdf
- Tamanho:
- 287.47 KB
- Formato:
- Adobe Portable Document Format
- Descrição:
Licença do Pacote
1 - 2 de 2
Nenhuma Miniatura disponível
- Nome:
- license.txt
- Tamanho:
- 1.71 KB
- Formato:
- Item-specific license agreed upon to submission
- Descrição:
Nenhuma Miniatura disponível
- Nome:
- license.txt
- Tamanho:
- 1.71 KB
- Formato:
- Item-specific license agreed upon to submission
- Descrição: