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| Registros recuperados : 30 | |
| 2. |  | JORGE, V; FREGENE, M; BONIARBALE, M; TOHME, J; VERDIER, V. Molecular genetic mapping of resistance to xanthomosas axonopodis pv. manihotis in cassava. Revista Brasileira de Mandioca, Cruz das Almas, v.17, p.41, nov., 1998., Suplemento.| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 5. | | REILLY, K.; HAN, Y.; TOHME, J.; BEECHING, J. R. Oxidative stress related genes in cassava post harvest physiological deterioration Brasilia: Embrapa Recursos Geneticos e Biotecnologia/CBN, 2000 p.560-569 In: INTERNATIONAL SCIENTIFIC MEETING ON CASSAVA BIOTECHNOLOGY, 1998. Salavador-Bahia. Proceedings... Brasilia, DF: Embrapa Recursos Geneticos e Biotecnologia/CBN, 2000. 625p. Editado por Luiz J. C. B. Carvalho, Ann Marie Thro, Alberto...| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 8. | | HERSHEY, C.; IGLESIAS, C.; IWANAGA, M.; TOHME, J. Definition of a core collection for cassava CIAT, Cali, Colombia: IPGRI, 1994 p.145-156 International Crop Network, 10 n: INTERNATIONAL PLANTGENETIC RESOURCES INSTITUT. Rome, Italy. International Network for Cassava Genetic Resources. Rome, Italy, 1994. Report of the first meeting. Cali, Colombia, CIAT, IITA - IBPGR, 1992| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 9. | | RODRIGUEZ, M. X.; BUSCHMANN, H.; TOHME, J.; BEECHING, J. R. Production of antimicrobial compounds in cassava (Manihot esculenta Crantz) roots during post-harvest physiological deterioration Brasilia: Embrapa Recursos Genetico e Biotecnologia/CBN, 2000 p.320-328 In: INTERNATIONAL SCIENTIFIC MEETING ON CASSAVA BIOTECHNOLOGY, 1998. Salvador-Bahia. Proceedings... Brasilia, DF: Embrapa Recursos Geneticos e Biotecnologia/CBN, 2000. 625p. Editado por Luiz J. C. B. Carvalho, Ann Marie Thro, Alberto...| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 10. | | BUSCHMANN, H.; RODRIGUEZ, M. X.; TOHME, J.; BEECHING, J. R. Qualitative and quantitative changes of phenolic components of cassava(Manihot esculenta Crantz) roots during post-harvest physiological deterioration Brasilia: Embrapa Recursos Geneticos e Biotecnologia/CBN, 2000 p.517-525 In: INTERNATIONAL SCIENTIFIC MEETING ON CASSAVA BIOTECHNOLOGY, 1998. Salvador-Bahia. Proceedings... Brasilia, DF: Embrapa Recursos Geneticos e Biotecnologia/CBN, 2000. 625p. Editado por Luiz J. C. B. Carvalho, Ann Marie Thro, Alberto...| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 12. | | ROCA, W. M.; LENTINI, Z.; TOHME, J.; MARTINEZ, C.; CORREA, F. Biotecnologia: una herramienta para el mejoramiento del arroz. In: CONFERENCIA INTERNACIONAL DE ARROZ PARA AMERICA LATINA Y EL CARIBE, 10., 1997, Acarigua, Venezuela. [Anais...]. [S.l.:s.n., 1997?]. paginacao irregular| Biblioteca(s): Embrapa Agropecuária Oeste. |
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| 13. | | MARTINEZ, C. P.; TOHME, J.; LOPEZ, J.; BORRERO, J.; McCOUCH, S. R.; ROCA, W. Current status of rice interspecific hybridization at CIAT. In: CONFERENCIA INTERNACIONAL DE ARROZ PARA AMERICA LATINA Y EL CARIBE, 10., 1997, Acarigua, Venezuela. [Trabalhos apresentados...]. [S.l.:s.n., 1997?]. p.13-22| Biblioteca(s): Embrapa Agropecuária Oeste. |
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| 15. | | CHAVARRIAGA-Aguirre, P.; MAYA, M. M.; BONIERBALE, M. W.; KRESOVICH, S.; FREGENE, M. A.; TOHME, J.; KOCHERT, G. Microsatellites in Cassava (Manihot esculenta Crantz): discovery, inheritance and variability Theor Appl Genet, v.97, p.493-501, 1998| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 16. | | CHAVARRIAGA, P.; MAYA, M. M.; DUQUE, M. C.; IGLESIAS, C.; FREGENE, M.; TOHME, J.; BONIERBALE, M.; KRESOVICFI, S.; KOCHERT, G. Microsatellites in cassava (Manihot esculenta Crantz, Euphorbiaceae): discovery, inheritance, variability and uses for germplasm characterization. Revista Brasileira de Mandioca, Cruz das Almas, v.17, p.23, nov, 1998. Suplemento.| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 17. | | MARTINEZ, C. P.; TOHME, J.; LOPEZ, J.; BORRERO, J.; McCOUCH, S. R.; ROCA, W.; CHATEL, M.; GUIMARAES, E. Estado actual del mejoramiento del arroz medianate la utilizacion de especies silvestres de arroz en CIAT1. In: CONFERENCIA INTERNACIONAL DE ARROZ PARA AMERICA LATINA Y EL CARIBE, 10., 1997, Acarigua, Venezuela. [Trabalhos apresentados...]. [S.l.:s.n., 1997?]. p.1-12| Biblioteca(s): Embrapa Agropecuária Oeste. |
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| 18. | | FREGENE, M.; ANGEL, F.; SUAREZ, M. C.; JANNETH, G.; CHAVARRIAGA, P.; ROCA, W. BONIERBALE, M.; TOHME, J. Genome mapping in cassava improvement: challenges, achievements and opportunities. Revista Brasileira de Mandioca, Cruz das Almas, v.17, p.24, nov., 1998. Suplemento.| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 19. | | FREGENE, M.; OKOGBENIN, E.; ANGEL, F.; SUAREZ, M. C.; JANNETH, G.; CHAVARRIAGA, P.; ROCA, W.; BONIERBALE, M.; TOHME, J. Genome mapping in cassava improvement: challenges, achievements and opportunities Brasilia: Embrapa Recursos Genetico e Biotecnologia/CBN, 2000 In: INTERNATIONAL SCIENTIFIC MEETING ON CASSAVA BIOTECHNOLOGY, 1998. Slavador-Bahia. Proceedings... Brasilia, DF: Embrapa Recursos Geneticos e Biotecnologia/CBN, 2000. 625p. Editado por Luiz J. C. B. Carvalho, Ann Marie Thro, Alberto...| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 20. | | MONCADA, P.; MARTINEZ, C. P.; BORRERO, J.; CHATEL, M.; GAUCH JR. H.; GUIMARÃES, E. P.; TOHME, J.; McCOUCH, S. R. Quantitative trait loci for yield and yield components in an Oryza sativa x Oryza rufipogon BC2F2 population evaluated in an upland environment. Theoretical and Applied Genetics, v. 102, n. 1, p. 41-52, 2001.| Biblioteca(s): Embrapa Arroz e Feijão. |
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| Registros recuperados : 30 | |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Arroz e Feijão. Para informações adicionais entre em contato com cnpaf.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
03/08/2004 |
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Data da última atualização: |
05/04/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MONCADA, P.; MARTINEZ, C. P.; BORRERO, J.; CHATEL, M.; GAUCH JR. H.; GUIMARÃES, E. P.; TOHME, J.; McCOUCH, S. R. |
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Afiliação: |
ELCIO PERPETUO GUIMARAES, CNPAF. |
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Título: |
Quantitative trait loci for yield and yield components in an Oryza sativa x Oryza rufipogon BC2F2 population evaluated in an upland environment. |
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Ano de publicação: |
2001 |
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Fonte/Imprenta: |
Theoretical and Applied Genetics, v. 102, n. 1, p. 41-52, 2001. |
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DOI: |
https://doi.org/10.1007/s001220051616 |
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Idioma: |
Inglês |
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Conteúdo: |
An advanced backcross breeding strategy was used to identify quantitative trait loci (QTLs) associated with eight agronomic traits in a BC2F2 population derived from an interspecific cross between Caiapo, an upland Oryza sativa subsp. japonica rice variety from Brazil, and an accession of Oryza rufipogon from Malaysia. Caiapo is one of the most-widely grown dryland cultivars in Latin America and may be planted as a monoculture or in a multicropping system with pastures. The objectives of this study were: (1) to determine whether trait-enhancing QTLs from O. rufipogon would be detected in 274 BC2F2 families grown under the drought-prone, acid soil conditions to which Caiapo was adapted, (2) to compare the performance with and without pasture competition, and (3) to compare putative QTL-containing regions identified in this study with those previously reported for populations adapted to irrigated, low-land conditions. Based on analyses of 125 SSLP and RFLP markers distributed throughout the genome and using single-point, interval, and composite interval mapping, two putative O. rufipogon derived QTLs were detected for yield, 13 for yield components, four for maturity and six for plant height.We conclude that advanced backcross QTL analysis offers a useful germplasm enhancement strategy for the genetic improvement of cultivars adapted to stress-prone environments. Although the phenotypic performance of the wild germplasm would not suggest its value as a breeding parent, it is noteworthy that 56% of the trait-enhancing QTLs identified in this study were derived from O. rufipogon. This figure is similar to the 51% of favorable QTLs derived from the same parent in crosses with a high-yielding hybrid rice cultivar evaluated under irrigated conditions in a previous study. In conclusion, parallel studies in rice using AB-QTL analysis provide increasing evidence that certain regions of the rice genome are likely to harbor genes of interest for plant improvement in multiple environments. MenosAn advanced backcross breeding strategy was used to identify quantitative trait loci (QTLs) associated with eight agronomic traits in a BC2F2 population derived from an interspecific cross between Caiapo, an upland Oryza sativa subsp. japonica rice variety from Brazil, and an accession of Oryza rufipogon from Malaysia. Caiapo is one of the most-widely grown dryland cultivars in Latin America and may be planted as a monoculture or in a multicropping system with pastures. The objectives of this study were: (1) to determine whether trait-enhancing QTLs from O. rufipogon would be detected in 274 BC2F2 families grown under the drought-prone, acid soil conditions to which Caiapo was adapted, (2) to compare the performance with and without pasture competition, and (3) to compare putative QTL-containing regions identified in this study with those previously reported for populations adapted to irrigated, low-land conditions. Based on analyses of 125 SSLP and RFLP markers distributed throughout the genome and using single-point, interval, and composite interval mapping, two putative O. rufipogon derived QTLs were detected for yield, 13 for yield components, four for maturity and six for plant height.We conclude that advanced backcross QTL analysis offers a useful germplasm enhancement strategy for the genetic improvement of cultivars adapted to stress-prone environments. Although the phenotypic performance of the wild germplasm would not suggest its value as a breeding parent, it is n... Mostrar Tudo |
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Palavras-Chave: |
Upland rice; Yield. |
|
Thesagro: |
Arroz; Oryza Sativa. |
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Thesaurus NAL: |
Oryza rufipogon; quantitative trait loci; yield components. |
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Categoria do assunto: |
G Melhoramento Genético |
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Marc: |
LEADER 02935naa a2200301 a 4500
001 1212445
005 2022-04-05
008 2001 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s001220051616$2DOI
100 1 $aMONCADA, P.
245 $aQuantitative trait loci for yield and yield components in an Oryza sativa x Oryza rufipogon BC2F2 population evaluated in an upland environment.$h[electronic resource]
260 $c2001
520 $aAn advanced backcross breeding strategy was used to identify quantitative trait loci (QTLs) associated with eight agronomic traits in a BC2F2 population derived from an interspecific cross between Caiapo, an upland Oryza sativa subsp. japonica rice variety from Brazil, and an accession of Oryza rufipogon from Malaysia. Caiapo is one of the most-widely grown dryland cultivars in Latin America and may be planted as a monoculture or in a multicropping system with pastures. The objectives of this study were: (1) to determine whether trait-enhancing QTLs from O. rufipogon would be detected in 274 BC2F2 families grown under the drought-prone, acid soil conditions to which Caiapo was adapted, (2) to compare the performance with and without pasture competition, and (3) to compare putative QTL-containing regions identified in this study with those previously reported for populations adapted to irrigated, low-land conditions. Based on analyses of 125 SSLP and RFLP markers distributed throughout the genome and using single-point, interval, and composite interval mapping, two putative O. rufipogon derived QTLs were detected for yield, 13 for yield components, four for maturity and six for plant height.We conclude that advanced backcross QTL analysis offers a useful germplasm enhancement strategy for the genetic improvement of cultivars adapted to stress-prone environments. Although the phenotypic performance of the wild germplasm would not suggest its value as a breeding parent, it is noteworthy that 56% of the trait-enhancing QTLs identified in this study were derived from O. rufipogon. This figure is similar to the 51% of favorable QTLs derived from the same parent in crosses with a high-yielding hybrid rice cultivar evaluated under irrigated conditions in a previous study. In conclusion, parallel studies in rice using AB-QTL analysis provide increasing evidence that certain regions of the rice genome are likely to harbor genes of interest for plant improvement in multiple environments.
650 $aOryza rufipogon
650 $aquantitative trait loci
650 $ayield components
650 $aArroz
650 $aOryza Sativa
653 $aUpland rice
653 $aYield
700 1 $aMARTINEZ, C. P.
700 1 $aBORRERO, J.
700 1 $aCHATEL, M.
700 1 $aGAUCH JR. H.
700 1 $aGUIMARÃES, E. P.
700 1 $aTOHME, J.
700 1 $aMcCOUCH, S. R.
773 $tTheoretical and Applied Genetics$gv. 102, n. 1, p. 41-52, 2001.
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