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| Oliveira,Eder Jorge de; Costa,Juliana Leles; Santos,Lucas Ferraz dos; Carvalho,Fabiana Moraes de; Silva,Aline dos Santos; Dantas,Jorge Luiz Loyola. |
| Due to the low genetic variability reported in the commercial plantations of papaya (Carica papaya L.), the objective of this study was analyze the genetic diversity of 32 genotypes including cultivars, landraces, inbred lines, and improved germplasm using the AFLP technique (Amplified Fragment Length Polymorphism). The genetic distance matrix was obtained using the Nei and Li genetic distance and clustering was performed using the unweighted pair-method with arithmetic mean (UPGMA). Using 11 combinations of EcoRI/MseI primers, 383 polymorphic bands were obtained. On average, 34.8 polymorphic bands were obtained per primer combination. Five clusters were formed. The traditional cultivar 'Sunrise' and the inbred line CMF-L30-08 were the closest genotypes,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Papaya breeding; Genetic resources; Genetic diversity; Carica papaya L. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452011000300020 |
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| Vettorazzi,Julio Cesar Fiorio; Santa-Catarina,Renato; Poltronieri,Tathianne Pastana de Sousa; Cortes,Diego Fernando Marmolejo; Azevedo,Alinne Oliveira Nunes; Miranda,Daniel Pereira; Santana,Josefa Grasiela Silva; Ramos,Helaine Christine Cancela; Pereira,Messias Gonzaga. |
| ABSTRACT: The growing demand for quality of papaya by the domestic and international markets requires the development of genotypes that are capable of incorporating traits, such as high yield and fruit quality. This study estimated the genetic parameters and the specific combining ability of F4 papaya lines crossed to the SS-72/12 tester to identify genotypes with higher genetic value for hybrid production. We evaluated 169 treatments consisting of 62 topcross hybrid combinations, 97 F5 lines, and 10 controls in a 13 × 13 lattice design with five replicates and two plants per plot. The following traits were evaluated: plant height (PH), stem diameter (SD), first-fruit insertion height (FFIH), number of marketable fruits (NMF), number of deformed fruits... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Carica papaya L.; Papaya breeding; Topcross; Genetic parameter. |
| Ano: 2021 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162021000201102 |
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