Registro Completo
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Biblioteca(s): |
Embrapa Gado de Corte. |
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Data corrente: |
08/06/1998 |
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Data da última atualização: |
15/04/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
VEASEY, E. A.; VALARINI, M. J.; MECELIS, N. R.; ALCANTARA, P. B.; ALCANTARA, V. de B. G.; TULMAN NETO, A.; ABBADO, M. R.; CARDELLI, M. A. |
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Afiliação: |
ELIZABETH ANN VEASEY, INSTITUTO DE ZOOTECNIA. Secao de Agronomia de Plantas Forrageiras; MARIA JOSÉ VALARINI, INSTITUTO DE ZOOTECNIA. Secao de Agronomia de Plantas Forrageiras. Bosista do CNPQ; NILZA ROCHA MECELIS, CNPGC; PAULO BARDAUIL ALCÂNTARA, INSTITUTO DE ZOOTECNIA. Secao de Agronomia de Plantas Forrageiras; VALQUÍRIA DE BEM GOMES ALCÂNTARA, INSTITUTO DE ZOOTECNIA. Secao de Agronomia de Plantas Forrageiras; AUGUSTO TULMAN NETO, CENA; MARCELA RIBEIRO ABBADO, Estagiária do INSTITUTO DE ZOOTECNIA; MARCIA ATAURI CARDELLI, INSTITUTO DE ZOOTECNIA. Secao de Agronomia de Plantas Forrageiras. |
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Título: |
Use of gamma-radiotion to inscrease genetic variabaility in Jaragua grass (Hyparrhenia rufa). |
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Ano de publicação: |
1996 |
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Fonte/Imprenta: |
Boletim de Industria Animal, Nova Odessa, v. 53, n. ùnico, p. 61-64, 1996. |
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Idioma: |
Inglês |
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Notas: |
Título em português: Uso de radiação gama para aumentar a variabilidade genética em capim Jaraguá (Hyparrhenia rufa). |
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Conteúdo: |
Spontaneous or induced mutations provide important genetic variability,useful to many plant species breeding programs. With the objective to observe mutageniceffect of gamma radiation in Jaragua grass (Hyparrhenia rufa), seeds were irradiated withthe dose of 400 Gy from ~°Co source. The Mi generation was evaluated in the field.Different morphological characters were recorded, such as divergent racemes, awnlessspikelets, low growth, narrow leaves, and chimerism. No variation in flowering time wasspikelets, low growth, narrow leaves, and chimerism. No variobserved. A preliminary progeny test with M2 off-type and control plants showed variationwithin progeny mainly for the character divergent racemes, which presented Mendeliansegregation. Embryo sac analysis, by the clearing technique with phase contrastmicroscopy, showed the presence of single and multiple aposporous embryo sacs as well asa lower frequency of meiotic embryo sacs indicating the facultative apomictic breedingsystem of this species. Further investigation is needed to verify whether irradiation hascaused a break in apomixis. |
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Palavras-Chave: |
Gamma irradiation; Melhoramento genetico; Radio gama. |
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Thesagro: |
Apomixia; Capim Jaraguá; Hyparrhenia Rufa; Radiação; Semente. |
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Thesaurus NAL: |
apomixis; plant breeding; seeds. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/212352/1/Use-of-gamma-radiation-.pdf
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Marc: |
LEADER 02204naa a2200349 a 4500
001 1321625
005 2020-04-15
008 1996 bl uuuu u00u1 u #d
100 1 $aVEASEY, E. A.
245 $aUse of gamma-radiotion to inscrease genetic variabaility in Jaragua grass (Hyparrhenia rufa).$h[electronic resource]
260 $c1996
500 $aTítulo em português: Uso de radiação gama para aumentar a variabilidade genética em capim Jaraguá (Hyparrhenia rufa).
520 $aSpontaneous or induced mutations provide important genetic variability,useful to many plant species breeding programs. With the objective to observe mutageniceffect of gamma radiation in Jaragua grass (Hyparrhenia rufa), seeds were irradiated withthe dose of 400 Gy from ~°Co source. The Mi generation was evaluated in the field.Different morphological characters were recorded, such as divergent racemes, awnlessspikelets, low growth, narrow leaves, and chimerism. No variation in flowering time wasspikelets, low growth, narrow leaves, and chimerism. No variobserved. A preliminary progeny test with M2 off-type and control plants showed variationwithin progeny mainly for the character divergent racemes, which presented Mendeliansegregation. Embryo sac analysis, by the clearing technique with phase contrastmicroscopy, showed the presence of single and multiple aposporous embryo sacs as well asa lower frequency of meiotic embryo sacs indicating the facultative apomictic breedingsystem of this species. Further investigation is needed to verify whether irradiation hascaused a break in apomixis.
650 $aapomixis
650 $aplant breeding
650 $aseeds
650 $aApomixia
650 $aCapim Jaraguá
650 $aHyparrhenia Rufa
650 $aRadiação
650 $aSemente
653 $aGamma irradiation
653 $aMelhoramento genetico
653 $aRadio gama
700 1 $aVALARINI, M. J.
700 1 $aMECELIS, N. R.
700 1 $aALCANTARA, P. B.
700 1 $aALCANTARA, V. de B. G.
700 1 $aTULMAN NETO, A.
700 1 $aABBADO, M. R.
700 1 $aCARDELLI, M. A.
773 $tBoletim de Industria Animal, Nova Odessa$gv. 53, n. ùnico, p. 61-64, 1996.
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Registro original: |
Embrapa Gado de Corte (CNPGC) |
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