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 | Acesso ao texto completo restrito à biblioteca da Embrapa Clima Temperado. Para informações adicionais entre em contato com cpact.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Clima Temperado; Embrapa Recursos Genéticos e Biotecnologia. |
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Data corrente: |
07/10/2021 |
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Data da última atualização: |
21/12/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MATTOS, V. S.; LEITE, R. R.; SANTOS, M. F. A.; GOMES, C. B.; CASTAGNONE-SERENO, P.; CARES, J. E.; CARNEIRO, R. M. D. G. |
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Afiliação: |
VANESSA S. MATTOS; RAYCENNE R. LEITE, UNB; MARCILENE F. A. SANTOS; CESAR BAUER GOMES, CPACT; PHILIPPE CASTAGNONE-SERENO, Université Côte d'Azur, France; JUVENIL E. CARES, UNB; REGINA MARIA DECHECHI G CARNEIRO, Cenargen. |
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Título: |
Genetic diversity of Meloidogyne spp. from rice and identification of multiresistant sources in Oryza spp. accessions. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Plant Pathology, v. 70, n. 9, p. 2217-2228, Dec. 2021. |
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ISSN: |
1365-3059 |
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DOI: |
https://doi.org/10.1111/ppa.13438 |
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Idioma: |
Inglês |
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Conteúdo: |
Recently a Meloidogyne species complex was detected parasitizing and causing dam-age to irrigated rice in southern Brazil, highlighting the need to study the genetic diver-sity of these species and their pathogenicity to Oryza spp. in order to select genotypes of rice with multiple resistance. This study compared the genetic diversity of Brazilian Meloidogyne spp. isolates from irrigated rice and evaluated the reaction of four wild accessions of Oryza species (O. glumaepatula, O. longistaminata, O. grandiglumis, and O. alta) and two cultivated species, O. glaberrima and O. sativa (control) to M. ottersoni, M. oryzae, and two variants of M. graminicola (Est G2 and Est G3). Genetic variability was assessed using RAPD and AFLP markers. M. graminicola and M. ottersoni showed high intraspecific variability: 83.76% and 41.14%, respectively. Cluster analysis showed a clear separation among rice root- knot nematodes (RKNs) into subclades according to their esterase phenotypes with 100% bootstrap. For rice resistance screening, plants were inoculated with 5,000 eggs, and the nematode reproduction factor evaluated 90?120 days postinoculation. O. glumaepatula, an American wild species, was highly resistant or resistant to all rice RKNs tested and is a valuable source of multiple re-sistance. Overall, the other rice species also showed different levels of resistance. Conversely, O. longistaminata exhibited low levels of resistance. M. graminicola Est G3 was the most aggressive isolate. Sources of resistance against RKN in wild Oryzagenotypes, especially in an AA genome like O. glumaepatula, may be of great interest for future breeding programmes in cultivated rice. MenosRecently a Meloidogyne species complex was detected parasitizing and causing dam-age to irrigated rice in southern Brazil, highlighting the need to study the genetic diver-sity of these species and their pathogenicity to Oryza spp. in order to select genotypes of rice with multiple resistance. This study compared the genetic diversity of Brazilian Meloidogyne spp. isolates from irrigated rice and evaluated the reaction of four wild accessions of Oryza species (O. glumaepatula, O. longistaminata, O. grandiglumis, and O. alta) and two cultivated species, O. glaberrima and O. sativa (control) to M. ottersoni, M. oryzae, and two variants of M. graminicola (Est G2 and Est G3). Genetic variability was assessed using RAPD and AFLP markers. M. graminicola and M. ottersoni showed high intraspecific variability: 83.76% and 41.14%, respectively. Cluster analysis showed a clear separation among rice root- knot nematodes (RKNs) into subclades according to their esterase phenotypes with 100% bootstrap. For rice resistance screening, plants were inoculated with 5,000 eggs, and the nematode reproduction factor evaluated 90?120 days postinoculation. O. glumaepatula, an American wild species, was highly resistant or resistant to all rice RKNs tested and is a valuable source of multiple re-sistance. Overall, the other rice species also showed different levels of resistance. Conversely, O. longistaminata exhibited low levels of resistance. M. graminicola Est G3 was the most aggressive isolate. ... Mostrar Tudo |
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Palavras-Chave: |
Arroz selvagem; Genetic variability; Oryza glumaepatula; Resistance; Rice root-knot nematodes. |
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Thesagro: |
Arroz; Galha; Genética Vegetal; Nematóide; Recurso Genético; Variação Genética. |
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Thesaurus Nal: |
Wild rice. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02749naa a2200361 a 4500
001 2138190
005 2021-12-21
008 2021 bl uuuu u00u1 u #d
022 $a1365-3059
024 7 $ahttps://doi.org/10.1111/ppa.13438$2DOI
100 1 $aMATTOS, V. S.
245 $aGenetic diversity of Meloidogyne spp. from rice and identification of multiresistant sources in Oryza spp. accessions.$h[electronic resource]
260 $c2021
520 $aRecently a Meloidogyne species complex was detected parasitizing and causing dam-age to irrigated rice in southern Brazil, highlighting the need to study the genetic diver-sity of these species and their pathogenicity to Oryza spp. in order to select genotypes of rice with multiple resistance. This study compared the genetic diversity of Brazilian Meloidogyne spp. isolates from irrigated rice and evaluated the reaction of four wild accessions of Oryza species (O. glumaepatula, O. longistaminata, O. grandiglumis, and O. alta) and two cultivated species, O. glaberrima and O. sativa (control) to M. ottersoni, M. oryzae, and two variants of M. graminicola (Est G2 and Est G3). Genetic variability was assessed using RAPD and AFLP markers. M. graminicola and M. ottersoni showed high intraspecific variability: 83.76% and 41.14%, respectively. Cluster analysis showed a clear separation among rice root- knot nematodes (RKNs) into subclades according to their esterase phenotypes with 100% bootstrap. For rice resistance screening, plants were inoculated with 5,000 eggs, and the nematode reproduction factor evaluated 90?120 days postinoculation. O. glumaepatula, an American wild species, was highly resistant or resistant to all rice RKNs tested and is a valuable source of multiple re-sistance. Overall, the other rice species also showed different levels of resistance. Conversely, O. longistaminata exhibited low levels of resistance. M. graminicola Est G3 was the most aggressive isolate. Sources of resistance against RKN in wild Oryzagenotypes, especially in an AA genome like O. glumaepatula, may be of great interest for future breeding programmes in cultivated rice.
650 $aWild rice
650 $aArroz
650 $aGalha
650 $aGenética Vegetal
650 $aNematóide
650 $aRecurso Genético
650 $aVariação Genética
653 $aArroz selvagem
653 $aGenetic variability
653 $aOryza glumaepatula
653 $aResistance
653 $aRice root-knot nematodes
700 1 $aLEITE, R. R.
700 1 $aSANTOS, M. F. A.
700 1 $aGOMES, C. B.
700 1 $aCASTAGNONE-SERENO, P.
700 1 $aCARES, J. E.
700 1 $aCARNEIRO, R. M. D. G.
773 $tPlant Pathology$gv. 70, n. 9, p. 2217-2228, Dec. 2021.
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Embrapa Clima Temperado (CPACT) |
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Registro Completo
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
14/02/2013 |
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Data da última atualização: |
18/03/2024 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
GOMIDE, C. A. de M.; PACIULLO, D. S. C. |
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Afiliação: |
CARLOS AUGUSTO DE MIRANDA GOMIDE, CNPGL; DOMINGOS SAVIO CAMPOS PACIULLO, CNPGL. |
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Título: |
Estratégias para o manejo do capim-elefante sob pastejo. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
In: SIMPÓSIO SOBRE MANEJO ESTRATÉGICO DA PASTAGEM, 6.; SIMPÓSIO INTERNACIONAL SOBRE PRODUÇÃO ANIMAL EM PASTEJO, 4., 2012, Viçosa, MG. Anais do... Viçosa, MG: UFV, 2012. |
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Idioma: |
Português |
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Palavras-Chave: |
Gramineas tropicais. |
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Thesagro: |
Valor Nutritivo. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/949193/1/Estrategias-para-o-manejo-do-capim-elefante-sob-pastejo.pdf
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Marc: |
LEADER 00549nam a2200133 a 4500
001 1949193
005 2024-03-18
008 2012 bl uuuu u00u1 u #d
100 1 $aGOMIDE, C. A. de M.
245 $aEstratégias para o manejo do capim-elefante sob pastejo.$h[electronic resource]
260 $aIn: SIMPÓSIO SOBRE MANEJO ESTRATÉGICO DA PASTAGEM, 6.; SIMPÓSIO INTERNACIONAL SOBRE PRODUÇÃO ANIMAL EM PASTEJO, 4., 2012, Viçosa, MG. Anais do... Viçosa, MG: UFV$c2012
650 $aValor Nutritivo
653 $aGramineas tropicais
700 1 $aPACIULLO, D. S. C.
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