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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
11/10/1999 |
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Data da última atualização: |
11/10/1999 |
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Autoria: |
FREDERICO, A. P.; RUAS, P. M.; MORALES, M. A. M.; RUAS, C. F.; NAKAJIMA, J. N. |
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Afiliação: |
Universidade Estadual de Londrina; Universidade Estadual Paulista; Universidade Federal de Uberaba, MG. |
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Título: |
Chromosome studies in some Stevia Cav. (Compositae) species from Southern Brazil |
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Ano de publicação: |
1996 |
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Fonte/Imprenta: |
Brazilian Journal of Genetics, v.19, n.4, p.605-609, 1996 |
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Idioma: |
Inglês |
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Conteúdo: |
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. |
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Categoria do assunto: |
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Marc: |
LEADER 01107naa a2200169 a 4500
001 1648326
005 1999-10-11
008 1996 bl --- 0-- u #d
100 1 $aFREDERICO, A. P.
245 $aChromosome studies in some Stevia Cav. (Compositae) species from Southern Brazil
260 $c1996
520 $aKaryotypes 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.
700 1 $aRUAS, P. M.
700 1 $aMORALES, M. A. M.
700 1 $aRUAS, C. F.
700 1 $aNAKAJIMA, J. N.
773 $tBrazilian Journal of Genetics$gv.19, n.4, p.605-609, 1996
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Embrapa Mandioca e Fruticultura (CNPMF) |
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| 59. |  | VERNETTI JUNIOR, F. de J.; VERNETTI, F. de J. Resposta de três cultivares de soja e três espaçamentos e três densidades de semeadura, em Pelotas, RS. Pesquisa Agropecuária Brasileira, Brasília, v.18, n.5, p. 519-526, maio 1983. Título em inglês: Response of three soybean cultivars to three spacings and three seeding densities, in Pelotas, RS.| Biblioteca(s): Embrapa Unidades Centrais. |
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| Registros recuperados : 157 | |
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