Data/hora: 05/06/2024 11:48:29

Provedor de dados: | 74
País: | Brazil
Título: | Chromosome complement and meiosis in three species of the Neotropical bug genus Antiteuchus (Heteroptera, Pentatomidae, Discocephalinae)
Autores: | Lanzone,Cecilia; Souza,Maria José de.
Data: | 2006-01-01
Ano: | 2006
Palavras-chave: | Spermatogenesis; Holokinetic chromosomes; Sex chromosomes; Meiosis; Diffuse stage.
Resumo: | Orcein staining of spermatocytes was used to study the meiotic behavior of holocentric chromosomes in three member of the genus Antiteuchus (commonly known as stink bugs). We describe and illustrate the karyotype of Antiteuchus mixtus, A. sepulcralis and A. macraspis which were cytogenetically characterized as having a diploid number of 2n = 14 and an XY sex chromosome system showing pre-reductional meiosis for autosomes and post-reductional meiosis for sex chromosomes. These species were also shown to have a long diffuse stage during meiotic prophase I and aberrant harlequin-type meiocytes. The chiasma frequency was also analyzed for two of the three species studied.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572006000100011
Editor: | Sociedade Brasileira de Genética
Relação: | 10.1590/S1415-47572006000100011
Formato: | text/html
Fonte: | Genetics and Molecular Biology  v.29 n.1 2006
Fonte: | info:eu-repo/semantics/openAccess