Data/hora: 02/06/2024 05:07:16

Provedor de dados: | Brazilian Archives of Biology and Technology
País: | Brazil
Título: | Chromosome number and microsporogenesis in Paspalum maritimum (caespitosa group; gramineae)
Autores: | Adamowski,Eleniza de Victor; Pagliarini,Maria Suely; Batista,Luiz Alberto Rocha.
Data: | 2000-01-01
Ano: | 2000
Palavras-chave: | Paspalum maritimum; Chromosome number; Meiotic behavior; Pollen fertility.
Resumo: | Despite of economic importance of the genus Paspalum, little or no cytologic information is available for many species. This is the first report about chromosome number and meiotic behavior for P. maritimum. The three accessions collected in Amapá State (North Region of Brazil) were tetraploid (2n=4x=40) with the chromosomes associating predominantly as bivalents. The low frequency of multivalents suggested that they were segmental allotetraploids. All accessions showed a low rate of meiotic irregularities, and as a consequence the pollen fertility was high. The results suggested that these accessions presented potential for use in a hybridization program.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132000000300009
Editor: | Instituto de Tecnologia do Paraná - Tecpar
Relação: | 10.1590/S1516-89132000000300009
Formato: | text/html
Fonte: | Brazilian Archives of Biology and Technology  v.43 n.3 2000
Fonte: | info:eu-repo/semantics/openAccess