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Registro Completo |
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Biblioteca(s): |
Embrapa Agricultura Digital. |
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Data corrente: |
01/06/2009 |
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Data da última atualização: |
30/11/2010 |
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Autoria: |
SILVA, F. F. da; PEREIRA, M. G.; DAMASCENO JÚNIOR, P. C.; DAHER, R. F.; PEREIRA, T. N. S.; SOUZA FILHO, G. A. de; VIANA, A. P.; FERREGUETTI, G. A. |
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Afiliação: |
FRANCISCO FILHO DA SILVA, UENF; MESSIAS GONZAGA PEREIRA,, UENF; PEDRO CORRÊA DAMASCENO JÚNIOR, UENF; ROGÉRIO FIGUEIREDO DAHER, UENF; TELMA NAIR SANTANA PEREIRA, UENF; GONÇALO APOLINÁRIO DE SOUZA FILHO, UENF; ALEXANDRE PIO VIANA, UENF; GERALDO ANTÔNIO FERRUTTI, UENF. |
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Título: |
Monitoring of the genetic variability in papaya parent 'Formosa' of 'UENF/CALIMAN 01' hybrid via RAPD |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
Crop Breeding and Applied Biotechnology, Londrina, v. 7, n. 1, p. 36-42, June 2007. |
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Idioma: |
Inglês |
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Conteúdo: |
The genetic improvement of papaya in Brazil, in hybridizations and studies of combining ability, can broaden the genetic base of the species and brush aside the constraints in choosing cultivars for planting. The objective of this study was to monitor the advance of selfing generations in the parent Formosa of 'UENF/CALIMAN 01', the first Brazilian papaya hybrid, using RAPD markers. For this purpose 27, 30 and 31 plants of the C1, C2 and C 3 cycles, respectively, were genotyped. The coefficients of mean genetic dissimilarity were 0.1766, 0.0555 and 0.0445 in the C 1, C2 and C 3 cycles, respectively. The reduced mean distance in the C3 cycle indicates a greater genetic homogeneity of these plants, fulfilling a basic requirement for the creation of uniform hybrids. The establishment of the C4 cycle would therefore achieve no significant gains in reducing the
genetic distance but cause a delay in the release of hybrid seeds. |
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Palavras-Chave: |
Índice de Jaccard; Mamoeiro; Mamoeiro formosa; Marcadores moleculares; Método de agrupamento de Tocher; Uenf/caliman 01; UPGMA. |
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Thesagro: |
Agricultura; Biotecnologia; Carica Papaya; Genética. |
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Categoria do assunto: |
G Melhoramento Genético |
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Marc: |
LEADER 01931naa a2200337 a 4500
001 1049114
005 2010-11-30
008 2007 bl uuuu u00u1 u #d
100 1 $aSILVA, F. F. da
245 $aMonitoring of the genetic variability in papaya parent 'Formosa' of 'UENF/CALIMAN 01' hybrid via RAPD
260 $c2007
520 $aThe genetic improvement of papaya in Brazil, in hybridizations and studies of combining ability, can broaden the genetic base of the species and brush aside the constraints in choosing cultivars for planting. The objective of this study was to monitor the advance of selfing generations in the parent Formosa of 'UENF/CALIMAN 01', the first Brazilian papaya hybrid, using RAPD markers. For this purpose 27, 30 and 31 plants of the C1, C2 and C 3 cycles, respectively, were genotyped. The coefficients of mean genetic dissimilarity were 0.1766, 0.0555 and 0.0445 in the C 1, C2 and C 3 cycles, respectively. The reduced mean distance in the C3 cycle indicates a greater genetic homogeneity of these plants, fulfilling a basic requirement for the creation of uniform hybrids. The establishment of the C4 cycle would therefore achieve no significant gains in reducing the genetic distance but cause a delay in the release of hybrid seeds.
650 $aAgricultura
650 $aBiotecnologia
650 $aCarica Papaya
650 $aGenética
653 $aÍndice de Jaccard
653 $aMamoeiro
653 $aMamoeiro formosa
653 $aMarcadores moleculares
653 $aMétodo de agrupamento de Tocher
653 $aUenf/caliman 01
653 $aUPGMA
700 1 $aPEREIRA, M. G.
700 1 $aDAMASCENO JÚNIOR, P. C.
700 1 $aDAHER, R. F.
700 1 $aPEREIRA, T. N. S.
700 1 $aSOUZA FILHO, G. A. de
700 1 $aVIANA, A. P.
700 1 $aFERREGUETTI, G. A.
773 $tCrop Breeding and Applied Biotechnology, Londrina$gv. 7, n. 1, p. 36-42, June 2007.
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Registro original: |
Embrapa Agricultura Digital (CNPTIA) |
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