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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Corte. |
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Data corrente: |
20/04/2009 |
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Data da última atualização: |
29/01/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
FUZINATO, V. A.; PAGLIARINI, M. S.; VALLE, C. B. do. |
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Afiliação: |
Veridiana Aparecida Fuzinatto, UEM; Maria Suely Pagliarini, UEM; CACILDA BORGES DO VALLE, CNPGC. |
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Título: |
Evaluation of microsporogenesis in an interspecific Brachiaria hybrid (Poaceae) collected in distinct years. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
Genetics and Molecular Research, Ribeirão Preto, v.7, n. 2, p. 424-432, 2008. |
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Idioma: |
Inglês |
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Conteúdo: |
Microsporogenesis in an interspecific Brachiaria hybrid, grown in the field under natural environmental conditions in Brazilian savannas, was analyzed in three distinct years of collection. Several types of meiotic abnormalities were recorded during those three years, but varied in type and frequency depending on the year. The average temperature and rainfall 15 days before collection was unusually high in those years. The percentage of abnormal meiocytes recorded was 62% in 2001, 73% in 2004, and 77% in 2005. The abnormalities observed during microsporogenesis compromised pollen viability by generating unbalanced gametes or affecting nucleolus organization. The environmental conditions under which the hybrid was growing could have affected the genetic control of meiosis. More detailed studies, under controlled conditions, are necessary to better understand the effects of environmental factors on Brachiaria microsporogenesis hybrids. |
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Palavras-Chave: |
Braquiária; Brasil; Campo Grande; Mato Grosso do Sul; Microsporogênse. |
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Thesagro: |
Citogenética vegetal; Hibrido; Meio ambiente; Melhoramento genético vegetal; Pastagem; Planta Forrageira. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/42707/1/gmr430.pdf
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Marc: |
LEADER 01794naa a2200277 a 4500
001 1326850
005 2018-01-29
008 2008 bl uuuu u00u1 u #d
100 1 $aFUZINATO, V. A.
245 $aEvaluation of microsporogenesis in an interspecific Brachiaria hybrid (Poaceae) collected in distinct years.$h[electronic resource]
260 $c2008
520 $aMicrosporogenesis in an interspecific Brachiaria hybrid, grown in the field under natural environmental conditions in Brazilian savannas, was analyzed in three distinct years of collection. Several types of meiotic abnormalities were recorded during those three years, but varied in type and frequency depending on the year. The average temperature and rainfall 15 days before collection was unusually high in those years. The percentage of abnormal meiocytes recorded was 62% in 2001, 73% in 2004, and 77% in 2005. The abnormalities observed during microsporogenesis compromised pollen viability by generating unbalanced gametes or affecting nucleolus organization. The environmental conditions under which the hybrid was growing could have affected the genetic control of meiosis. More detailed studies, under controlled conditions, are necessary to better understand the effects of environmental factors on Brachiaria microsporogenesis hybrids.
650 $aCitogenética vegetal
650 $aHibrido
650 $aMeio ambiente
650 $aMelhoramento genético vegetal
650 $aPastagem
650 $aPlanta Forrageira
653 $aBraquiária
653 $aBrasil
653 $aCampo Grande
653 $aMato Grosso do Sul
653 $aMicrosporogênse
700 1 $aPAGLIARINI, M. S.
700 1 $aVALLE, C. B. do
773 $tGenetics and Molecular Research, Ribeirão Preto$gv.7, n. 2, p. 424-432, 2008.
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Registro original: |
Embrapa Gado de Corte (CNPGC) |
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| Registros recuperados : 617 | |
| 61. |  | VALLE, C. B. do; SIMIONI, C.; PANIAGO, B. da C. Cruzamentos intraespecíficos em Brachiaria decumbens. In: CONGRESSO BRASILEIRO DE MELHORAMENTO DE PLANTAS, 5., 2009, Guarapari. O melhoramento e os novos cenários da agricultura: anais. Vitória: Incaper, 2009. 1 CD-ROM. (Incaper. Documentos, 11). CBMP 2009. Organizado por Romário Gava Ferrão, Frederico de Pina Matta, Maria Amélia Gava Ferrão, João Cândido de Souza, Adelaide de F. S. da Costa, Liliâm Maria Ventorim Ferrão. 4 p. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Gado de Corte. |
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| Registros recuperados : 617 | |
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