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Registros recuperados : 167 | |
4. | | CARVALHO, I. C. M. Educação, meio ambiente e cidadania. Revista do Instituto Florestal, São Paulo, v. 4, pt. 4, p. 1081-1085, mar. 1992. Edição dos Anais do Congresso Florestal de Essências Nativas, 2., 1992, São Paulo. Edição especial. Biblioteca(s): Embrapa Florestas. |
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Registros recuperados : 167 | |
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Registro Completo
Biblioteca(s): |
Embrapa Unidades Centrais. |
Data corrente: |
25/03/2010 |
Data da última atualização: |
25/06/2018 |
Autoria: |
FERREIRA, K.; TORRES, G. A.; CARVALHO, I. V. de; DAVIDE, L. C. |
Afiliação: |
Kátia Ferreira, Universidade Federal de Lavras/Departamento de Biologia; Giovana Augusta Torres, Universidade Federal de Lavras/Departamento de Biologia; Isabelle Vilela de Carvalho, Universidade Federal de Lavras/Departamento de Biologia; Lisete Chamma Davide, Universidade Federal de Lavras/Departamento de Biologia. |
Título: |
Abnormal meiotic behavior in three species of Crotalaria. |
Ano de publicação: |
2009 |
Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 44, n. 12, p. 1641-1646, dez. 2009 |
Idioma: |
Inglês |
Notas: |
Título em português: Comportamento meiótico anormal em três espécies de Crotalaria. |
Conteúdo: |
The objective of this work was to compare the meiotic behavior and pollen grain viability of three species of Crotalaria. Slides for meiotic analysis were prepared by the air-drying technique. Pollen grain viability was measured by three staining procedures (Alexander's solution, tetrazolium chloride and fluorescein diacetate) and in vitro germination in a sucrose solution. Eight bivalents were observed, confirming previous reports on populations from other regions of Brazil, as well as from other countries. All species showed abnormal meiotic behavior as follows: in Crotalaria micans, cytomixis and abnormal chromosome pairing in diakinesis; in C. spectabilis, abnormal chromosome pairing in diplotene; in C. zanzibarica, shrunk nuclei in leptotene and zygotene. Pollen grains of all three species show low viability, which may be associated with the irregularities of the meiotic behavior. |
Palavras-Chave: |
Cytomixis; Pollen grain viability; Viabilidade do grão de pólen. |
Thesagro: |
Citogenética; Crotalária; Meiose. |
Thesaurus NAL: |
Cytogenetics; Meiosis. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/38217/1/44n12a12.pdf
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Marc: |
LEADER 01711naa a2200265 a 4500 001 1662399 005 2018-06-25 008 2009 bl uuuu u00u1 u #d 100 1 $aFERREIRA, K. 245 $aAbnormal meiotic behavior in three species of Crotalaria. 260 $c2009 500 $aTítulo em português: Comportamento meiótico anormal em três espécies de Crotalaria. 520 $aThe objective of this work was to compare the meiotic behavior and pollen grain viability of three species of Crotalaria. Slides for meiotic analysis were prepared by the air-drying technique. Pollen grain viability was measured by three staining procedures (Alexander's solution, tetrazolium chloride and fluorescein diacetate) and in vitro germination in a sucrose solution. Eight bivalents were observed, confirming previous reports on populations from other regions of Brazil, as well as from other countries. All species showed abnormal meiotic behavior as follows: in Crotalaria micans, cytomixis and abnormal chromosome pairing in diakinesis; in C. spectabilis, abnormal chromosome pairing in diplotene; in C. zanzibarica, shrunk nuclei in leptotene and zygotene. Pollen grains of all three species show low viability, which may be associated with the irregularities of the meiotic behavior. 650 $aCytogenetics 650 $aMeiosis 650 $aCitogenética 650 $aCrotalária 650 $aMeiose 653 $aCytomixis 653 $aPollen grain viability 653 $aViabilidade do grão de pólen 700 1 $aTORRES, G. A. 700 1 $aCARVALHO, I. V. de 700 1 $aDAVIDE, L. C. 773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 44, n. 12, p. 1641-1646, dez. 2009
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Embrapa Unidades Centrais (AI-SEDE) |
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