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Registro Completo |
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Biblioteca(s): |
Embrapa Café. |
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Data corrente: |
15/10/2020 |
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Data da última atualização: |
15/10/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SOUZA, R. de L.; DIAS, L. A. dos S.; CORRÊA, T. R.; CAIXETA, E. T.; FERNANDES, E. da C.; MUNIZ, D. R.; ROSMANINHO, L. B. de C.; CARDOSO, P. M. R. |
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Afiliação: |
Romero de Lima Souza, Universidade Federral de Viçosa; Luiz Antônio dos Santos Dias, Universidade Federal de Viçosa; Thais Roseli Corrêa, Universidade Estadual do Maranhão; EVELINE TEIXEIRA CAIXETA MOURA, CNPCa; Erika da Costa Fernandes, Universidade Federal de Viçosa; Dandara Rêgo Muniz, Universidade Federal de Viçosa; Lucas Barbosa de Castro Rosmaninho, Universidade Federal de Viçosa; Poliane Marcele Ribeiro Cardoso, Universidade Federal de Viçosa. |
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Título: |
Genetic variability revealed by microsatellite markers in a germplasm collection of Jatropha curcas L. in Brazil: an important plant for biofuels. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Crop Breeding and Applied Biotechnology, v. 19, n. 3, p. 337-346, 2019. |
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DOI: |
http://dx.doi.org/10.1590/1984-70332019v19n3a46 |
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Idioma: |
Inglês |
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Conteúdo: |
We evaluated the genetic variability of a collection of Jatropha curcas germplasm, represented by 93 accessions, using microsatellite markers. Among the 60 markers tested, five of them detected polymorphisms, with a total of 11 alleles and mean of 2.2 alleles per loci. These five markers enabled the quan-tification of genetic variability through estimates of expected (He=0.42) and observed (Ho=0.64) heterozygosity, Shannon-Weaver index (H?=0.62), coefficient of inbreeding (?=-0.44) and the formation of 11 clusters. Simultaneously, 14 accessions randomly sampled among the 93 and represented by seven plants each, were analyzed with these same five markers to quantify the within and between variability. Most of the genetic variation (92.58%) was contained within the accessions. These analyses revealed, for the first time, expressive genetic variability to be explored in this collection. The accessions UFVJC 05, 07, 12, 18, and 53 presented expressive variability among them with potential for the constitution of a base population for the breeding program. |
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Palavras-Chave: |
Biofuel; Germplasm bank; Molecular marker. |
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Thesagro: |
Jatropha Curcas. |
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Thesaurus Nal: |
Breeding; Variability. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/216664/1/Souza-et-al-2019.pdf
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Marc: |
LEADER 02011naa a2200289 a 4500
001 2125515
005 2020-10-15
008 2019 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1590/1984-70332019v19n3a46$2DOI
100 1 $aSOUZA, R. de L.
245 $aGenetic variability revealed by microsatellite markers in a germplasm collection of Jatropha curcas L. in Brazil$ban important plant for biofuels.$h[electronic resource]
260 $c2019
520 $aWe evaluated the genetic variability of a collection of Jatropha curcas germplasm, represented by 93 accessions, using microsatellite markers. Among the 60 markers tested, five of them detected polymorphisms, with a total of 11 alleles and mean of 2.2 alleles per loci. These five markers enabled the quan-tification of genetic variability through estimates of expected (He=0.42) and observed (Ho=0.64) heterozygosity, Shannon-Weaver index (H?=0.62), coefficient of inbreeding (?=-0.44) and the formation of 11 clusters. Simultaneously, 14 accessions randomly sampled among the 93 and represented by seven plants each, were analyzed with these same five markers to quantify the within and between variability. Most of the genetic variation (92.58%) was contained within the accessions. These analyses revealed, for the first time, expressive genetic variability to be explored in this collection. The accessions UFVJC 05, 07, 12, 18, and 53 presented expressive variability among them with potential for the constitution of a base population for the breeding program.
650 $aBreeding
650 $aVariability
650 $aJatropha Curcas
653 $aBiofuel
653 $aGermplasm bank
653 $aMolecular marker
700 1 $aDIAS, L. A. dos S.
700 1 $aCORRÊA, T. R.
700 1 $aCAIXETA, E. T.
700 1 $aFERNANDES, E. da C.
700 1 $aMUNIZ, D. R.
700 1 $aROSMANINHO, L. B. de C.
700 1 $aCARDOSO, P. M. R.
773 $tCrop Breeding and Applied Biotechnology$gv. 19, n. 3, p. 337-346, 2019.
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Registro original: |
Embrapa Café (CNPCa) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Soja. Para informações adicionais entre em contato com valeria.cardoso@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
08/10/1992 |
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Data da última atualização: |
27/03/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
Nacional - B |
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Autoria: |
TOLEDO, J. F. F. de; POONI, H. S.; JINKS, J. L. |
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Afiliação: |
EMBRAPA-CNPSo. Londrina, PR. |
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Título: |
Predicting the properties of second cycle hybrids produced by intercrossing random samples of recombinant inbred lines. |
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Ano de publicação: |
1984 |
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Fonte/Imprenta: |
Heredity, Harlow, v. 53, n. 2, p. 283-292, Oct. 1984. |
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Idioma: |
Inglês |
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Conteúdo: |
Distributive properties of the second cycle hybrids that are produced by intercrossing the recombinant inbreds extractable from the F2 of a cross between two pure breeding lines can be predicted from the early generatinos of the original cross. Hence the frequency of such hybrids that will outperform the extreme recombinant inbreds or the original F1 can be predicted. Basic generations and triple test cross families provide the most reliable estimates of the predictors and therefore should be used whenever possible although, in the presence of linkage, randomly mated F2's may give improved predictions. Simpler experiments consisting of the parental varieties and their F1 and F2 generations, however, provide all the information that is likely to be necessary for most practical purposes. The predictive power of the new approach is demonstrated on material extracted from the cross of varieties 1 and 5 of Nicotiana rustica. The predictors were estimated from the means and variances of V1, V5, F1 and F2 raised in six environments between 1973 and 1983. The predicted frequencies of second cycle F1's which outperform the extreme recombinant inbred lines derived from this cross are compared with those observed among 190 second cycle hybrids in a diallel between 20 recombinant inbreds derived from the same cross. |
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Palavras-Chave: |
Genetic; Hybrid; Plant. |
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Thesagro: |
Genética; Hibrido; Melhoramento; Planta. |
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Thesaurus NAL: |
breeding. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02004naa a2200241 a 4500
001 1444761
005 2024-03-27
008 1984 bl uuuu u00u1 u #d
100 1 $aTOLEDO, J. F. F. de
245 $aPredicting the properties of second cycle hybrids produced by intercrossing random samples of recombinant inbred lines.$h[electronic resource]
260 $c1984
520 $aDistributive properties of the second cycle hybrids that are produced by intercrossing the recombinant inbreds extractable from the F2 of a cross between two pure breeding lines can be predicted from the early generatinos of the original cross. Hence the frequency of such hybrids that will outperform the extreme recombinant inbreds or the original F1 can be predicted. Basic generations and triple test cross families provide the most reliable estimates of the predictors and therefore should be used whenever possible although, in the presence of linkage, randomly mated F2's may give improved predictions. Simpler experiments consisting of the parental varieties and their F1 and F2 generations, however, provide all the information that is likely to be necessary for most practical purposes. The predictive power of the new approach is demonstrated on material extracted from the cross of varieties 1 and 5 of Nicotiana rustica. The predictors were estimated from the means and variances of V1, V5, F1 and F2 raised in six environments between 1973 and 1983. The predicted frequencies of second cycle F1's which outperform the extreme recombinant inbred lines derived from this cross are compared with those observed among 190 second cycle hybrids in a diallel between 20 recombinant inbreds derived from the same cross.
650 $abreeding
650 $aGenética
650 $aHibrido
650 $aMelhoramento
650 $aPlanta
653 $aGenetic
653 $aHybrid
653 $aPlant
700 1 $aPOONI, H. S.
700 1 $aJINKS, J. L.
773 $tHeredity, Harlow$gv. 53, n. 2, p. 283-292, Oct. 1984.
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