UC10: a new early Formosa papaya cultivar

Pereira, Messias Gonzaga; Luz, Lucas Nunes da; Santa-Catarina, Renato; Ramos, Helaine Christine Cancela; Pereira, Telma Nair Santana; Barros, Gislanne de Brito; Ferregueti, Geraldo Antônio; Vivas, Marcelo; Cortes, Diego Fernando Marmolejo; Vettorazzi, Júlio Cesar Fiorio; Azecedo, Alinne Oliveira Nunes; Silveira, Silvaldo Felipe da; Oliveira, Jurandi Gonçalves de; Viana, Alexandre Pío

doi:10.1590/1984-70332019v19n1c18

Cited by 11 publications

(5 citation statements)

References 2 publications

(1 reference statement)

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“…In Brazil, the papaya breeding program at UENF has had great success in the development of 21 new papaya cultivars 27 , which reduced the need to import hybrid seeds, expanded the options for farmers and consumers, and placed the Country as a potential papaya seed exporter. One of these cultivars is the UC10 hybrid, with fruits of around 1.9 kg and a high yield 28 . The parental of this hybrid are the Formosa elite lines Sekati and JS-12, which are contrasting for agronomic and fruit quality attributes.…”

Section: Introductionmentioning

confidence: 99%

Discovery of SNPs and InDels in papaya genotypes and its potential for marker assisted selection of fruit quality traits

Bohry

Ramos

Santos

et al. 2021

Sci Rep

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Papaya is a tropical and climacteric fruit that is recognized for its nutritional benefits and medicinal applications. Its fruits ripen quickly and show a drastic fruit softening, leading to great post-harvest losses. To overcome this scenario, breeding programs of papaya must invest in exploring the available genetic variation to continue developing superior cultivars with improved fruit quality traits. The objective of this study was to perform a whole-genome genotyping (WGG) of papaya, predict the effects of the identified variants, and develop a list of ripening-related genes (RRGs) with linked variants. The Formosa elite lines of papaya Sekati and JS-12 were submitted to WGG with an Illumina Miseq platform. The effects of variants were predicted using the snpEff program. A total of 28,451 SNPs having Ts/Tv (Transition/Transversion) ratio of 2.45 and 1,982 small insertions/deletions (InDels) were identified. Most variant effects were predicted in non-coding regions, with only 2,104 and 138 effects placed in exons and splice site regions, respectively. A total of 106 RRGs were found to be associated with 460 variants, which may be converted into PCR markers to facilitate genetic mapping and diversity studies and to apply marker-assisted selection (MAS) for specific traits in papaya breeding programs.

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Section: Introductionmentioning

confidence: 99%

Discovery of SNPs and InDels in papaya genotypes and its potential for marker assisted selection of fruit quality traits

Bohry

Ramos

Santos

et al. 2021

Sci Rep

Self Cite

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“…The measured traits were: fruit weight -FW (kg); fruit diameter -FD (mm); fruit length -FL (mm); total soluble solids -TSS (°Brix); number of deformed fruits -NDF; fruitless leaf axils -FLLA; number of marketable fruits -NMF; fruit yield -Yield (t ha-1). The fruit yield was the same calculated by Pereira et al (2019).…”

Section: Pedigree and Breeding Methodologymentioning

confidence: 99%

“…One alternative to continuous increase of papaya production is the cultivar development with high-yielding, and adapted to the different environmental conditions (Marin et al 2006a, b). The papaya breeding program of the UENF in partnership with Caliman Agricola S.A. has been evaluating the yield of new papaya genotypes (Pereira et al 2018;Pereira et al 2019). Based on these yield trials, four new papaya hybrids suited for domestic production were registered by the Universidade Estadual do Norte Fluminense Darcy Ribeiro -UENF in the Ministry of Agriculture, Livestock, and Supply -MAPA, among these, the cultivar UC14 (Luz et al 2015).…”

Section: Introductionmentioning

confidence: 99%

‘UC14’: a new papaya cultivar with intermediate fruit size

Pereira

Luz

Santa-Catarina

et al. 2019

Crop Breed. Appl. Biotechnol.

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“…The Sekati genitor produces large fruits, with excellent flesh firmness and moderate soluble solid content, while the JS-12 genitor differs from the Sekati for the last two traits, with moderate flesh firmness and high soluble solid content (Cardoso et al 2014. These five genotypes are genitors of commercial hybrids, registered at the Ministry of Agriculture, Livestock and Supply -MAPA (Luz et al 2015, Luz et al 2018a, Luz et al 2018b, Pereira et al 2019a, Pereira et al 2019b.…”

Section: Recombination To Compose the Ucp-c0 Base Populationmentioning

confidence: 99%

Recurrent selection in papaya: An effective strategy for the continuous development of new cultivars

Pereira

Santa-Catarina

2021

Crop Breed. Appl. Biotechnol.

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Part of the success of a breeding program depends on the composition of the base population. Superior genotypes and unimproved dioecious varieties are sources of genes for traits of interest and excellent options for the formation of segregating populations. Here we describe the first cycle of recurrent selection (RS) in papaya and propose an effective strategy, unprecedented in the crop, to generate variability and new cultivars. Initially, the RS base population (UCP-C0) was developed with wide variability. Subsequently, 196 S 1 progenies were obtained, evaluated in a trial, and the superior 40 S 1 progenies were recombined. Among the traits of the selected progenies, high fruit yield (producing two to five fruits per axil) stands out. The S 1 progenies were recombined and their seed bulk corresponds to the base population for the second cycle (UCP-C1). The results of the first cycle demonstrate the genetic potential of this population for the development of superior cultivars, and the breeding strategy applied is promising.

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UC10: a new early Formosa papaya cultivar

Cited by 11 publications

References 2 publications

Discovery of SNPs and InDels in papaya genotypes and its potential for marker assisted selection of fruit quality traits

Discovery of SNPs and InDels in papaya genotypes and its potential for marker assisted selection of fruit quality traits

‘UC14’: a new papaya cultivar with intermediate fruit size

Recurrent selection in papaya: An effective strategy for the continuous development of new cultivars

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