Data/hora: 11/06/2024 00:53:00

Provedor de dados: | 65
País: | Brazil
Título: | Meiotic behavior during microsporogenesis of Alchornea triplinervia (Sprengel) Müller Argoviensis
Autores: | Godoy,Sara Mataroli de; Pereira,Andréia Rodrigues Alonso; Romagnolo,Mariza Barion; Risso-Pascotto,Claudicéia.
Data: | 2012-06-01
Ano: | 2012
Palavras-chave: | Euphorbiaceae; Chromosome number; 2n gametes; Meiosis; Polyploid.
Resumo: | The Alchornea triplinervia specie belongs to the Euphorbiaceae family, one of the main families of the Brazilian flora. In order to contribute to a better understanding of the specie, a counting of chromosome number and the microsporogenesis analysis of A. triplinervia were done. The inflorescences were collected in the municipalities of Paranavaí and Diamante do Norte, State of Paraná, Brazil, and the slides were prepared by squashing technique and staining with 1% acetic carmine. The analysis were performed using an optical microscope and showed a chromosome number for the specie equal to 2n=8x=72. Irregularities in the chromosome segregation process were the main meiotic abnormalities, presenting typical polyploid behavior. Other irregularities were observed; however, at low frequency without compromising the pollen grain formation of the analyzed plants.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782012000600012
Editor: | Universidade Federal de Santa Maria
Relação: | 10.1590/S0103-84782012000600012
Formato: | text/html
Fonte: | Ciência Rural  v.42 n.6 2012
Fonte: | info:eu-repo/semantics/openAccess