Phenotypic and molecular selection of yellow passion fruit progenies in the second cycle of recurrent selection

Abstract

ARTICLE

Characterization and selection of passion fruit (yellow and purple) accessions based on molecular markers and disease reactions for use in breeding programs

“…Reis et al (2012) reported similar results when comparing data from thegenotyping and phenotypingofpassion fruit undergoing recurrent selection cycles.…”

“…Estimates of genetic distance between passion fruit accessions or within natural passion fruit populations based on microsatellite loci are in their incipient stages, with the results being restricted to recent diversity estimates, such as estimates from the SSR locus cross-amplification . The use of these markers has also contributed tothe monitoringof the variability present in segregating populations undergoing recurrent selection (Reis et al 2012(Reis et al , 2011 and to developing genetic maps for P. edulis and for P. alata .…”

“…Molecular markers are currently being employed for purposes such as identifying ornamental hybrids and improving fruit production, using both dominant and co-dominant markers Conceição et al 2011;Junqueira et al 2008). Molecular markers have also contributed to the monitoring of genetic variability in segregant populations subjected to cycle selection (Reis et al 2012(Reis et al , 2011Costa et al 2012) and backcrossing (Fonseca et al 2009). These referenced works, together with the growing number of results concerning the identification and characterization of microsatellite markers in passion fruit species (Cerqueira- Silva et al 2014b;Penha et al 2013;Cazé et al 2012;Cerqueira-Silva et al 2012b;Padua et al 2005;Oliveira et al 2005) should effectively contribute to advancing breeding programs and to proposing strategies for managing and conserving passion fruit.…”

Variability and genetic structure of yellow passion fruit (Passiflora edulis f. flavicarpa Degener) in Colombia using microsatellite DNA markers

“…These few institutional efforts were concentrated on the clonal propagation of hybrids between yellow and purple passion fruits obtained on a very narrow genetic base in Australia, Hawaii and Florida (Knight, 1972;Winks et al, 1988). The most advanced Brazilian breeding programs in yellow passion fruit have used progeny-testing to get synthetic populations, aiming at developing crop material with better productivity, quality and homogeneity, while maintaining sufficient genetic diversity for efficient cross-pollination (Oliveira et al, 2008;Reis et al, 2011Reis et al, , 2012. Furthermore, several cultivars have been proposed from year 2000 to the present day for consumption in natura and for the agroindustry in Brazil (Meletti et al, 2000(Meletti et al, , 2005Nascimento et al, 2003;Cerqueira et al, 2014a), with a great impact on fruit production and quality improvement in the recent years (Cerqueira et al, 2016).…”

Host status of progenies of yellow passion fruit to Meloidogyne incognita race 2

“…Due to the constant demand for fruit juice industry processing, passion fruit culture is an important source of income for many families in the country. However, the Brazilian passion fruit productivity is still low (Reis et al 2012), and the occurrence of diseases is one of the main drivers of this scenario. Early plant death, defoliation, delay in fruit ripening and reduced pulp yield are some of the symptoms caused by pathogens of passion fruit that reduce the production and fruit quality.…”