Publicação: Chromosome studies in some Stevia. Cav. (Compositae) species from Southern Brazil
Carregando...
Data
1996-01-01
Orientador
Coorientador
Pós-graduação
Curso de graduação
Título da Revista
ISSN da Revista
Título de Volume
Editor
Sociedade Brasileira de Genética
Tipo
Artigo
Direito de acesso
Acesso aberto
Resumo
Karyotypes of six species of the genus Stevia from Southern Brazil were studied, utilizing root tip metaphases. All species were diploid with 2n = 22 chromosomes. It was possible to identify each species by chromosome morphology. The basic chromosome number for Brazilian species of Stevia is X = 11. This number is also found in almost all South American species. We suggest that in Stevia there is an evolutionary trend toward chromosomal rearrangement, caused mainly by pericentric inversions. It was found that, in addition to aneuploidy and polyploidy, chromosomal rearrangements are common in the tribe Eupatorieae.
Descrição
Palavras-chave
Idioma
Inglês
Como citar
Brazilian Journal of Genetics. Sociedade Brasileira de Genética, v. 19, n. 4, p. 605-609, 1996.
