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Registro Completo |
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Biblioteca(s): |
Embrapa Hortaliças; Embrapa Semiárido. |
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Data corrente: |
14/09/2012 |
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Data da última atualização: |
07/06/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SANTOS, C. A. F.; LEITE, D. L.; OLIVEIRA, V. R. de; COSTA, N. D. |
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Afiliação: |
CARLOS ANTONIO FERNANDES SANTOS, CPATSA; DANIELA LOPES LEITE, CPACT; VISELDO RIBEIRO DE OLIVEIRA, CPATSA; NIVALDO DUARTE COSTA, CPATSA. |
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Título: |
Identification of maintainer lines and evaluation of experimental hybrids derived from a Brazilian tropical onion population.. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Acta Horticulturae, n. 935, p. 137-142, jun. 2012. |
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Idioma: |
Inglês |
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Notas: |
Edição do Proceedings of the XXVIII International Horticultural Congress on Science and Horticulture for People (IHC2010): International Symposium on New Developments in Plant Genetics and Breeding, Lisboa, jun. 2012. |
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Conteúdo: |
The four to five-fold price of onion hybrid seeds accounts for the wide use of open pollinated onion populations in Northeastern Brazil. Here we report the identification of maintainer and male-sterile onion lines within the ‘Alfa São Francisco’ yellow onion population, after three years of work, associating random field pairing of male-fertile plants with selected male-sterile plants and a PCR-based marker cytoplasm monitoring system. Male-sterile plants produced flowers with light green anthers which were easily detected in the field. A 2.0% frequency of male-sterile plants was estimated in the ‘Alfa São Francisco’ sampled population. Male-sterile plants produced the 5’cob-marker 180-bp and the orfA501-marker 473-bp fragments, suggesting the T-cytoplasm type, while the maintainer line produced only the 5’cobmarker 180-bp. Pairing ‘A’ line with a red onion resulted in 100% F1 red bulbs produced from harvested seed in the ‘A line’, confirming that a stable CMS system was identified within the Brazilian tropical ‘Alfa São Francisco’ population. Hybrids produced with another ‘Baia periforme’ onion population (Line ‘C’) and the ‘A’ identified lines’ have resulted in a 38% bulb yield increase compared with the best parent, ‘Alfa São Francisco’. The identified ‘A’ and ‘B’ lines, associated with other developed S1 and S2 populations (‘C’ lines) will be used to produced commercial hybrids well adapted to Brazilian low latitudes and with affordable prices for growers. |
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Palavras-Chave: |
Alfa São Francisco; Alium cepa; Linhas A e B; Onion. |
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Thesagro: |
Allium Cepa; Cebola; Hibrido. |
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Thesaurus Nal: |
Onions. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/66341/1/Carlos-Antonio-2012.pdf
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Marc: |
LEADER 02509naa a2200265 a 4500
001 1933763
005 2023-06-07
008 2012 bl uuuu u00u1 u #d
100 1 $aSANTOS, C. A. F.
245 $aIdentification of maintainer lines and evaluation of experimental hybrids derived from a Brazilian tropical onion population..$h[electronic resource]
260 $c2012
500 $aEdição do Proceedings of the XXVIII International Horticultural Congress on Science and Horticulture for People (IHC2010): International Symposium on New Developments in Plant Genetics and Breeding, Lisboa, jun. 2012.
520 $aThe four to five-fold price of onion hybrid seeds accounts for the wide use of open pollinated onion populations in Northeastern Brazil. Here we report the identification of maintainer and male-sterile onion lines within the ‘Alfa São Francisco’ yellow onion population, after three years of work, associating random field pairing of male-fertile plants with selected male-sterile plants and a PCR-based marker cytoplasm monitoring system. Male-sterile plants produced flowers with light green anthers which were easily detected in the field. A 2.0% frequency of male-sterile plants was estimated in the ‘Alfa São Francisco’ sampled population. Male-sterile plants produced the 5’cob-marker 180-bp and the orfA501-marker 473-bp fragments, suggesting the T-cytoplasm type, while the maintainer line produced only the 5’cobmarker 180-bp. Pairing ‘A’ line with a red onion resulted in 100% F1 red bulbs produced from harvested seed in the ‘A line’, confirming that a stable CMS system was identified within the Brazilian tropical ‘Alfa São Francisco’ population. Hybrids produced with another ‘Baia periforme’ onion population (Line ‘C’) and the ‘A’ identified lines’ have resulted in a 38% bulb yield increase compared with the best parent, ‘Alfa São Francisco’. The identified ‘A’ and ‘B’ lines, associated with other developed S1 and S2 populations (‘C’ lines) will be used to produced commercial hybrids well adapted to Brazilian low latitudes and with affordable prices for growers.
650 $aOnions
650 $aAllium Cepa
650 $aCebola
650 $aHibrido
653 $aAlfa São Francisco
653 $aAlium cepa
653 $aLinhas A e B
653 $aOnion
700 1 $aLEITE, D. L.
700 1 $aOLIVEIRA, V. R. de
700 1 $aCOSTA, N. D.
773 $tActa Horticulturae$gn. 935, p. 137-142, jun. 2012.
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Registro original: |
Embrapa Semiárido (CPATSA) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Leite. Para informações adicionais entre em contato com cnpgl.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
16/08/2021 |
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Data da última atualização: |
16/08/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
CHIAVEGATTO, R. B.; CARTA, A.; PEREIRA, D. G. S.; BENITES, F. R. G.; TECHIO, V. H.; PERUZZI, L. |
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Afiliação: |
RAQUEL B. CHIAVEGATTO, Universidade Federal de Lavras; ANGELINO CARTA, Universidade de Pisa; DIEGO G. S. PEREIRA, Universidade Federal de Lavras; FLAVIO RODRIGO GANDOLFI BENITES, CNPGL; VÂNIA H. TECHIO, Universidade Federal de Lavras; LORENZO PERUZZI, Universidade de Pisa. |
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Título: |
Reconstructing ancestral chromosome numbers and inflorescence features in Eleusininae (Poaceae: Chloridoideae: Cynodonteae). |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Botanical Journal of the Linnean Society, v. 193, n. 3, p. 402-418, 2020. |
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DOI: |
https://doi.org/10.1093/botlinnean/boaa015 |
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Idioma: |
Inglês |
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Conteúdo: |
The chromosome number in Poaceae has changed widely over 77 Myr of evolution and polyploidization. Chromosome number changes can suggest a high rate of diversification and evolutionary novelties, and such changes can contribute to speciation. Despite this, chromosome numbers alone do not allow the evolutionary history of a group to be traced. Combined phylogenetic and karyological analyses can clarify the evolutionary history of taxa and allow taxonomic relationships and hierarchical levels to be inferred. The subtribe Eleusininae is the largest of the subfamily Chloridoideae. This study aims to reconstruct their chromosome number evolution, for which ChromEvol 2.0 software was used. Haploid chromosome numbers of Eleusininae were retrieved from the literature, and a consensus phylogenetic tree of Eleusininae was reconstructed. It was possible to infer 41 events of chromosome rearrangements along the evolutionary history of Eleusininae, according to the probabilistic model used. Chromosome number evolution in Eleusininae was mainly influenced by polyploidy events. The ancestral basic chromosome number for Eleusininae was p = 6, but the most recent common ancestor showed p2 = 10. In addition, some derived basic chromosome numbers, such as x = 9, arose through dysploidy, whereas x = 20 was generated via polyploidy. |
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Palavras-Chave: |
Chromosomal evolution; Disploidia; Dysploidy. |
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Thesagro: |
Cromossoma; Genética; Poliploidia. |
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Thesaurus NAL: |
Polyploidy. |
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Categoria do assunto: |
G Melhoramento Genético |
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Marc: |
LEADER 02197naa a2200277 a 4500
001 2133614
005 2021-08-16
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1093/botlinnean/boaa015$2DOI
100 1 $aCHIAVEGATTO, R. B.
245 $aReconstructing ancestral chromosome numbers and inflorescence features in Eleusininae (Poaceae$bChloridoideae: Cynodonteae).$h[electronic resource]
260 $c2020
520 $aThe chromosome number in Poaceae has changed widely over 77 Myr of evolution and polyploidization. Chromosome number changes can suggest a high rate of diversification and evolutionary novelties, and such changes can contribute to speciation. Despite this, chromosome numbers alone do not allow the evolutionary history of a group to be traced. Combined phylogenetic and karyological analyses can clarify the evolutionary history of taxa and allow taxonomic relationships and hierarchical levels to be inferred. The subtribe Eleusininae is the largest of the subfamily Chloridoideae. This study aims to reconstruct their chromosome number evolution, for which ChromEvol 2.0 software was used. Haploid chromosome numbers of Eleusininae were retrieved from the literature, and a consensus phylogenetic tree of Eleusininae was reconstructed. It was possible to infer 41 events of chromosome rearrangements along the evolutionary history of Eleusininae, according to the probabilistic model used. Chromosome number evolution in Eleusininae was mainly influenced by polyploidy events. The ancestral basic chromosome number for Eleusininae was p = 6, but the most recent common ancestor showed p2 = 10. In addition, some derived basic chromosome numbers, such as x = 9, arose through dysploidy, whereas x = 20 was generated via polyploidy.
650 $aPolyploidy
650 $aCromossoma
650 $aGenética
650 $aPoliploidia
653 $aChromosomal evolution
653 $aDisploidia
653 $aDysploidy
700 1 $aCARTA, A.
700 1 $aPEREIRA, D. G. S.
700 1 $aBENITES, F. R. G.
700 1 $aTECHIO, V. H.
700 1 $aPERUZZI, L.
773 $tBotanical Journal of the Linnean Society$gv. 193, n. 3, p. 402-418, 2020.
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Registro original: |
Embrapa Gado de Leite (CNPGL) |
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