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Registro Completo |
Biblioteca(s): |
Embrapa Gado de Leite. |
Data corrente: |
18/03/2009 |
Data da última atualização: |
08/02/2024 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
VARGAS, S. M.; TORRES, G. A.; SOUZA SOBRINHO, F.; PEREIRA, A. V.; DAVIDE, L. C. |
Afiliação: |
Sarah Maria Vargas, UFMG; Giovana Augusta Torres, UFLA; Fausto de Souza Sobrinho, Embrapa Gado de Leite; Antônio Vander Pereira, Embrapa Gado de Leite; Lisete Chamma Davide, UFLA. |
Título: |
Karyotypic studies of Cratylia argentea (Desv.) O. Kuntze and C. mollis Mart. ex Benth. (Fabaceae - Papilionoideae). |
Ano de publicação: |
2007 |
Fonte/Imprenta: |
Genetics and Molecular Research, v. 6, n. 3. p. 707-712, 2007. |
Idioma: |
Inglês |
Conteúdo: |
Cratylia argentea and C. mollis (Fabaceae-Papilionoideae) are legume shrubs native to the Cerrado and Caatinga, respectively. Both species show great resistance to drought and high nutritive value, which makes them a valuable forage resource in tropical regions. Cytogenetic studies were carried out on accessions of C. argentea and C. mollis from Germplasm Banks of Embrapa Gado de Leite (Juiz de Fora, MG) and Embrapa Semi-Árido (Petrolina, PE), respectively. Root tips were treated with 3 mM 8-hydroxyquinoline and slides were made using the air-dry technique. Karyotype description for each accession took into account the following features: chromosome number; total length, relative length and arm ratio of each chromosome; haploid set length, and degree of asymmetry. Mitotic metaphases in both species showed 2n = 22 chromosomes, where this is the first report of diploid number for C. mollis. Chromosome length was also quite similar for the two species, ranging from 5.08 to 2.50 µm in C. argentea and 5.12 to 2.51 µm in C. mollis, with haploid sets of equal size, measuring 38.10 and 37.85 µm, respectively. However, they did not show the same karyotypic formula, which was 5 m + 4 sm + 2 st for C. argentea and 7 m + 2 sm + 2 st for C. mollis. This indicates the occurrence of rearrangements within chromosomes I and VI. Both karyotypes showed a tendency for asymmetry. |
Palavras-Chave: |
Chromosome evolution; Karyotype; Tropical forage. |
Thesagro: |
Cratylia mollis. |
Thesaurus Nal: |
Cratylia argentea; cytogenetics. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/596285/1/Karyotypic-studies-of-Cratylia-argentea.pdf
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Marc: |
LEADER 02126naa a2200241 a 4500 001 1596285 005 2024-02-08 008 2007 bl uuuu u00u1 u #d 100 1 $aVARGAS, S. M. 245 $aKaryotypic studies of Cratylia argentea (Desv.) O. Kuntze and C. mollis Mart. ex Benth. (Fabaceae - Papilionoideae).$h[electronic resource] 260 $c2007 520 $aCratylia argentea and C. mollis (Fabaceae-Papilionoideae) are legume shrubs native to the Cerrado and Caatinga, respectively. Both species show great resistance to drought and high nutritive value, which makes them a valuable forage resource in tropical regions. Cytogenetic studies were carried out on accessions of C. argentea and C. mollis from Germplasm Banks of Embrapa Gado de Leite (Juiz de Fora, MG) and Embrapa Semi-Árido (Petrolina, PE), respectively. Root tips were treated with 3 mM 8-hydroxyquinoline and slides were made using the air-dry technique. Karyotype description for each accession took into account the following features: chromosome number; total length, relative length and arm ratio of each chromosome; haploid set length, and degree of asymmetry. Mitotic metaphases in both species showed 2n = 22 chromosomes, where this is the first report of diploid number for C. mollis. Chromosome length was also quite similar for the two species, ranging from 5.08 to 2.50 µm in C. argentea and 5.12 to 2.51 µm in C. mollis, with haploid sets of equal size, measuring 38.10 and 37.85 µm, respectively. However, they did not show the same karyotypic formula, which was 5 m + 4 sm + 2 st for C. argentea and 7 m + 2 sm + 2 st for C. mollis. This indicates the occurrence of rearrangements within chromosomes I and VI. Both karyotypes showed a tendency for asymmetry. 650 $aCratylia argentea 650 $acytogenetics 650 $aCratylia mollis 653 $aChromosome evolution 653 $aKaryotype 653 $aTropical forage 700 1 $aTORRES, G. A. 700 1 $aSOUZA SOBRINHO, F. 700 1 $aPEREIRA, A. V. 700 1 $aDAVIDE, L. C. 773 $tGenetics and Molecular Research$gv. 6, n. 3. p. 707-712, 2007.
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Embrapa Gado de Leite (CNPGL) |
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42. | | DUARTE, M.; AUAD, A. M.; RESENDE, T. T. de; VERÍSSIMO, B. A.; SOUZA SOBRINHO, F. de. Resistência à Deois schach (Fabricius, 1787) em genótipos melhorados de Urochloa ruziziensis. In: WORKSHOP DE INICIAÇÃO CIENTÍFICA DA EMBRAPA GADO DE LEITE, 27., 2023, Juiz de Fora. Anais... Juiz de Fora: Embrapa Gado de Leite, 2024. p. 122-126.Tipo: Artigo em Anais de Congresso |
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54. | | BRIGHENTI, A. M.; SOUZA SOBRINHO, F. de; MARTINS, C. E.; ROCHA, W. S. D. da. Integração lavoura/pecuária/floresta. In: YAMAGUCHI, L. C. T.; MENDES, L. C. R.; LIMA, I. B. de; RODRIGUES, C. do C.; RESENDE, M. L. de. (Ed.). Aspectos sócio-econômicos e ambientais da produção de leite. Juiz de Fora: Embrapa Gado de Leite, 2007. p. 107-124.Tipo: Capítulo em Livro Técnico-Científico | Circulação/Nível: -- - -- |
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