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Identification of plantlet genetic origin in polyembryonic mango (Mangifera indica, L.) cv. Rosinha seeds using RAPD markers 94
Cordeiro,Maria Cristina Rocha; Pinto,Alberto Carlos Queiróz; Ramos,Víctor Hugo Vargas; Faleiro,Fábio Gelape; Fraga,Lilia Marta Santos.
Mango can be propagated by seeds or by grafting. For commercial purpose, grafting is the most appropriate method because it maintains the genetic characters from the propagated variety. To obtain grafted mango it is important to use polyembryonic varieties as rootstock since they produce a zygotic and many nucellar plantlets. The nucellar plantlets maintain the genetics of the mother-plant thus, are preferred for grafting since they supposedly give more uniformity to the orchard. In general, nurserymen use the most vigorous plantelet to graft, believing that they are nucellar. But, orchard disuniformities on height and yield are very common among mango trees of commercial orchards in Northeast region. The objective of this paper was to identify the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Plantlet identification; Embryo; Rootstock; Orchard uniformity.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452006000300025
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RAPD markers utilization and other parameters in the determination of mango hybrids genitors 94
Cordeiro,Maria Cristina Rocha; Pinto,Alberto Carlos de Queiróz; Ramos,Víctor Hugo Vargas; Faleiro,Fábio Gelape; Fraga,Lilia Marta Santos.
Actually mango (Mangifera indica, L.) is considered one of the largest Brazilian fruitbusiness for the export market. Cultivar selection having high fruit quality is a fundamental step to obtain excellent results in this business. A mango breeding program based on intervarietal hybridization may produce new improved cultivars for mango growers. Mango hybrids have been obtained by controlled or open crosses. In the last one, it is important to identify the male parent because it is useful for the genetic cultivar history, thus it is important for planning further improvements. This work presents a parentage test using among others parameters RAPD (Random amplified Polymorphic DNA) markers to estimate the male parent of the selected hybrids in an open cross...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Mango tree; Intervarietal crosses; Genetic improvement.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452006000200002
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