Phenotypic characterization of recurrent selection S1 Papaya (Carica papaya L.) families by multivariate approach

Santa-Catarina, Renato; Vettorazzi, Júlio Cesar Fiorio; Cortes, Diego Fernando Marmolejo; Santana, Josefa Grasiela Silva; Poltronieri, Tathianne Pastana de Sousa; Miranda, Daniel Pereira; Pirovani, Adriana Azevedo Vimercati; Moreira, Nádia Fernandes; Vivas, Marcelo; Pereira, Messias Gonzaga

doi:10.1007/s10681-020-02655-1

Cited by 12 publications

(6 citation statements)

References 34 publications

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“…For traits related to fruit size, the results varied from 585.00 to 2267.00 g, with an average of 1276.82 g for the AWF trait and 506.31–1652.85 cm 3 , with an average of 965.18 cm 3 for FLV trait. These findings align with similar studies 15 in which they characterized 220 papaya genotypes, also revealing a wide range of variation. These results highlight the possibility of selecting genotypes with Solo, Intermediate, and Formosa fruit size, catering to different consumer preferences in the market.…”

Section: Resultssupporting

confidence: 92%

“…According to Santa-Catarina et al 15 , in a study with genotypes from a base population for recurrent selection, it was also observed that the traits related to the size of the papaya fruit control most of the variability. This broad variability is of great potential for long-term line development, which may be used to obtain hybrids of different fruit sizes, corroborating the results of this study.…”

Section: Resultsmentioning

confidence: 99%

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Exploring genetic diversity in inbred papaya lines for fruit quality in advanced stage of improvement

Santana,

Ramos,

Santa-Catarina

et al. 2023

Sci Rep

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Despite the relevance of the global scenario regarding the papaya (Carica papaya L.) trade, there is still a limited number of papaya cultivars with different fruit patterns. Therefore, it is essential to explore the genetic variability at all levels of the germplasm used in the development of new papaya cultivars to meet its marketing goal. Thus, this study measured and explored the potential of genetic variability based on related to fruit quality traits, of a population of papaya lines in the F5 generation through several statistical analyzes. For this, 97 inbred lines obtained using the Single Seed Descent method, resulting from a cross between the JS-12 and Sekati genotypes, both with Formosa fruit pattern, were evaluated. Results indicated there was genetic variability in the fruit quality. The traits that most contributed to the variability were related to the fruit shape. The diverse population of 97 inbred papaya lines in the F5 generation showed promise for producing commercial-sized fruits in Formosa, Intermediate, and Solo patterns. Additionally, the selection of inbred papaya lines based on fruit shape using morpho-anatomical traits does not compromise physical and chemical parameters related to fruit quality.

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Section: Resultssupporting

confidence: 92%

Section: Resultsmentioning

confidence: 99%

Exploring genetic diversity in inbred papaya lines for fruit quality in advanced stage of improvement

Santana,

Ramos,

Santa-Catarina

et al. 2023

Sci Rep

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“…Of all the plant breeders' skills, the most significant is the proper exploitation of plant resources with genetic variability, without which it is not possible to make progress in genetic breeding. In papaya crops, new cultivars are most often from the generation of segregating populations with such variability that allow identifying superior genotypes for traits of interest, https://doi.org/10.1590/1678-4499.20220040 such as disease resistance, productivity, and fruit quality (Cortes et al 2018;Santa-Catarina et al 2020). Therefore, it is pertinent to the work of breeders to explore segregating populations as genetic resources of high value for the identification of superior genotypes in the development of varieties that can be lines or hybrid combinations.…”

Section: Introductionmentioning

confidence: 99%

Use of an index based on best linear unbiased prediction value for the selection of superior papaya lines for multiple traits

et al. 2022

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Selection indexes represent the real efforts of a breeding program to obtain genetic gains for various significant traits simultaneously. As such, this study selected superior F 5 lines by combined selection for fruit quality using an index based on predicted genotypic values via residual or restricted maximum likelihood/best linear unbiased prediction (REML/BLUP) methodology weighted by agronomic weights. To do so, 97 F 5 papaya lines obtained by the single seed descent method, resulting from the biparental cross between the genotypes JS-12 and Sekati, were evaluated for the main traits related to fruit quality. Results of the analysis of deviance and the genetic parameters indicated that there was genetic variability, indicating possible success in the selection process. Based on the selection index, 29 lines were selected as superior for fruit quality with 'Formosa' pattern. The strategy of the selection index combining BLUPs of multiple traits of interest associated with agronomic weights allows maximizing genetic progress while discarding less-promising genotypes.

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“…For papaya, different populations were developed and also submitted to and evaluated through some breeding method, such as the selection of genotypes from backcrossing populations for sexual conversion in papaya (Ramos et al 2014, the selection of genotypes from a bi-parental segregating population (Cortes et al 2018) and the development of the segregating population through recombination between contrasting genotypes for fruit yield and quality and for disease resistance (Santa-Catarina et al 2020a, Santa-Catarina et al 2020b.…”

Section: Introductionmentioning

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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Phenotypic characterization of recurrent selection S1 Papaya (Carica papaya L.) families by multivariate approach

Cited by 12 publications

References 34 publications

Exploring genetic diversity in inbred papaya lines for fruit quality in advanced stage of improvement

Exploring genetic diversity in inbred papaya lines for fruit quality in advanced stage of improvement

Use of an index based on best linear unbiased prediction value for the selection of superior papaya lines for multiple traits

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

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