The Peach Breeding Programme Irta-Asf: Aiming for High Fruit Quality

Batlle, I.; Fontich, C.; Lozano, Lidia; Iglésias, Ignasi; Reig, Gemma; Alegre, Simó; Echeverría, G.; Herralde, Felicidad de; Claveria, Elisabet; Dolcet-Sanjuan, Ramón; Carbó, José Luis Espada; Bonany, J.; Maillard, A.; Maillard, L.

doi:10.17660/actahortic.2012.940.8

Cited by 11 publications

(7 citation statements)

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“…Breeding programmes for flat peaches only started at the end of 1980s, mostly resorting on 'Stark Saturn', particularly in France (noteworthy releases were 'Platina' and 'Mesembrine') (Monet et al 1985;Monet 1986;Pascal and Monteux-Caillet 1998), Italy ('UFO' series) (Nicotra and Conte 2003), China ('Ruipan' series) (Ma et al 2015), and USA (several public or private programmes) (Sherman and Lyrene 2001). Since early 2000s, Spain placed special emphasis on flat breeding, as a support for a remarkable expansion of the market segment for this peach type in some countries, with some programmes still ongoing (Batlle et al 2012).…”

Section: A Short Breeding History Of Flat Fruit Traitmentioning

confidence: 99%

Many candidates for a single chair: a critical review of the genetic determinant of flat fruit shape trait in peach (Prunus persica L. Batsch)

Cirilli

Rossini

2021

Tree Genetics & Genomes

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Known since ancient times, flat-shaped peach (Prunus persica L. Batsch) fruits have aroused considerable research interest. Breeding activities for this trait have expanded since the 1980s of the last century in several countries, in parallel with research into its genetic basis. Following the need for molecular markers to assist selection, linkage mapping studies have positioned the flat shape S locus at the end of chromosome 6. Recently, a series of independent studies focused on detailed characterization of the genomic region harbouring the S locus and different hypotheses about the candidate gene or variant were proposed: from a constitutively activated cell death 1 protein (PpCAD1) to a Brassinosteroid insensitive 1-associated receptor kinase 1 group (PpLRR-RLK) until the discovery of large structural variant (a chromosomal inversion of about 1.7 Mb) putatively affecting an OVATE Family Protein (PpOFP1) and a homolog of sucrose non-fermenting 1-related kinase (PpSNF4), respectively, located at the proximal and distal breakpoints. This short review revises historical studies and recent literature, integrating reanalysis of available genetic and genomic data, to provide a critical overview of the topic and highlight avenues for further research.

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Section: A Short Breeding History Of Flat Fruit Traitmentioning

confidence: 99%

Many candidates for a single chair: a critical review of the genetic determinant of flat fruit shape trait in peach (Prunus persica L. Batsch)

Cirilli

Rossini

2021

Tree Genetics & Genomes

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“…Varietal improvement has privileged the selection of roundish (globose) fruits in almost all commercial peach and nectarine cultivars. The flat fruit type, known as ‘Pantao’ in China and ‘saucer’ or ‘donut’ peach in western countries, has been a notable exception, gaining a breeding interest starting from 1980 (with the release of the ‘Stark Saturn’ variety) and remaining a target trait in some breeding programs 6 . While peach cultivars are broadly classified into flat or non-flat (or round) types, a huge variability of fruit shapes have been reported across non-flat peach accessions, widely varying from oblate to ovate/elongated.…”

Section: Introductionmentioning

confidence: 99%

Genetic and phenotypic analyses reveal major quantitative loci associated to fruit size and shape traits in a non-flat peach collection (P. persica L. Batsch)

et al. 2021

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Fruit size and shape are critical agronomical and pomological attributes and prime targets in peach breeding programs. Apart from the flat peach type, a Mendelian trait well-characterized at the genetic level, ample diversity of fruit size and shapes is present across peach germplasms. Nevertheless, knowledge of the underlying genomic loci remains limited. In this work, fruit size and shape were assessed in a collection of non-flat peach accessions and selections, under controlled fruit load conditions. The architecture of these traits was then dissected by combining association and linkage mapping, revealing a major locus on the proximal end of chromosome 6 (qSHL/Fs6.1) explaining a large proportion of phenotypic variability for longitudinal shape and also affecting fruit size. A second major locus for fruit longitudinal shape (qSHL5.1), probably also affecting fruit size, was found co-localizing at locus G, suggesting pleiotropic effects of peach/nectarine traits. An additional QTL for fruit longitudinal shape (qSHL6.2) was identified in the distal end of chromosome 6 in a cross with an ornamental double-flower peach and co-localized with the Di2 locus, controlling flower morphology. Besides assisting breeding activities, knowledge of loci controlling fruit size and shape paves the way for more in-depth studies aimed at the identification of underlying genetic variant(s).

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“…Given the above, the application of in vitro culture techniques are useful to provide large number of disease-free and true-to-type plant materials (Ko et al, 2018). In addition, in vitro embryo rescue under aseptic environment, is a valuable technique to provide of new genetic variation to modern peach breeding programs aiming to get new early ripening varieties (Batlle et al, 2012;Devi et al, 2017;Sundouri et al, 2014). By using this methodology, the poor germination caused by incomplete embryo and seed development is solved using an aseptic and nutrient-rich environment (Liu et al, 2007;Sinclair and Byrne, 2003).…”

Section: Introductionmentioning

confidence: 99%

Inoculation of in vitro cultures with rhizosphere microorganisms improve plant development and acclimatization during immature embryo rescue in nectarine and pear breeding programs

Cantabella

Dolcet-Sanjuan

Casanovas

et al. 2020

Scientia Horticulturae

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The Peach Breeding Programme Irta-Asf: Aiming for High Fruit Quality

Cited by 11 publications

References 0 publications

Many candidates for a single chair: a critical review of the genetic determinant of flat fruit shape trait in peach (Prunus persica L. Batsch)

Many candidates for a single chair: a critical review of the genetic determinant of flat fruit shape trait in peach (Prunus persica L. Batsch)

Genetic and phenotypic analyses reveal major quantitative loci associated to fruit size and shape traits in a non-flat peach collection (P. persica L. Batsch)

Inoculation of in vitro cultures with rhizosphere microorganisms improve plant development and acclimatization during immature embryo rescue in nectarine and pear breeding programs

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