Genetic Resistance to Plum Pox Potyvirus in Peaches

Escalettes, V.; Dosba, F.; Lansac, M.; Eyquard, Jean-Philippe

doi:10.17660/actahortic.1998.465.86

Cited by 14 publications

(17 citation statements)

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“…To date, no natural PPV resistance source has been identified in peach germplasm (Gabova 1994;Escalettes et al 1998;Pascal et al 2002). Most of the cultivars which have been assayed were reported as susceptible, particularly to PPV M (Marcus) isolates (Mainou and Syrgiannidis 1992;Dosba et al 1994).…”

Section: Introductionmentioning

confidence: 99%

“…However, inside the widespread susceptibility existing in peach trees, it is possible to find an important variability, some cultivars being highly susceptible while others generally present no symptoms in leaves ("Moon Grand" and "Red Bird Cling") or in fruits ("Dupniska" and "Superior Pacific Star") in field conditions (Gabova 1994). Escalettes et al (1998) reported two resistant ornamental peaches, the "S2844" clone of "Russel Red" originating from the UK and the "S2873" clone of "Early Double Red" originating from the USA, but these were later confirmed as susceptible to a PPV M isolate by Pascal et al (2002). Hopefully, beside the lack of PPV resistance sources in peach, wild-peach-related species are an interesting option for finding potential resistance sources.…”

Section: Introductionmentioning

confidence: 99%

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Quantitative trait loci analysis of Plum pox virus resistance in Prunus davidiana P1908: new insights on the organization of genomic resistance regions

Rubio

Pascal

Bachellez

et al. 2009

Tree Genetics & Genomes

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No valuable source of resistance to Plum pox virus (PPV), the causative agent of sharka disease, has been found in peach (Prunus persica), but polygenic resistance to PPV was described in Prunus davidiana clone P1908. Two previous studies using F 1 and F 2 populations derived from the nectarine cv. Summergrand and P. davidiana P1908 identified a total of six P. davidiana quantitative trait loci (QTLs) involved in PPV resistance (Marcus strain). In an effort to verify the QTL stability in a large progeny and to search for possible interactions of the genetic backgrounds, the current study evaluated the incidence of PPV infection in an F 1 population derived from the susceptible peach cv. Rubira and P. davidiana P1908 over three growth periods using an improved method of PPV phenotyping referred to as "heavy test." The phenotypic dataset was analyzed using similar methods as the previous studies and a newly developed simple-sequence-repeatbased P. davidiana map. Nine regions involved in differential symptom expression were identified among which six were common between studies. However, the level of resistance observed in the population was very low compared to the other studies, and the main QTL previously identified in linkage group 6 was not conserved, suggesting strong interaction of the genetic background of the susceptible parent with that of P. davidiana 1908. Consequently, this could be a limiting factor for developing resistant cultivars derived from P. davidiana P1908.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Quantitative trait loci analysis of Plum pox virus resistance in Prunus davidiana P1908: new insights on the organization of genomic resistance regions

Rubio

Pascal

Bachellez

et al. 2009

Tree Genetics & Genomes

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show abstract

“…In peach (Prunus persica L. Batsch), all cultivars are susceptible, and no source of resistance has been identified (Escalettes et al 1998) up to now. However, in Prunus davidiana, a wild species related to peach, the clone P1908 was shown to bear resistance to PPV movement and incidence .…”

Section: Introductionmentioning

confidence: 99%

Flanking the major Plum pox virus resistance locus in apricot with co-dominant markers (SSRs) derived from candidate resistance genes

Sicard

Marandel

Soriano³

et al. 2007

Tree Genetics & Genomes

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Plum pox virus (PPV) is a potyvirus that causes sharka disease in infested stone fruit trees (Prunus species, peach, apricot, plum). In apricots, the resistance is controlled by a major quantitative trait locus that explains up to 70% of the phenotypic variance; it is localised in the upper part of linkage group 1. In this report, we transformed candidate genes that mapped in the region of the apricot resistance locus into polymerase chain reaction markers (SSCP and SSR) and tested for their co-localisation with the major PPV resistance locus in related and unrelated populations. Three populations of F1 and F2 individuals issued from crosses between the PPV-resistant cultivar 'Stark Early Orange' or 'Goldrich' and three susceptible parents were used in this study. Molecular-marker data were collected to determine the linkage relationship between the PPV resistance locus in apricots and markers that target candidate disease-resistance genes. In addition, SSR markers linked to resistance-gene candidates were mapped to positions flanking the PPV resistance locus in different apricot populations. Therefore, we demonstrate that this strategy helps to saturate the major genomic region controlling resistance to PPV in apricot with valuable codominant markers.

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“…Thus, the behaviour of Prunus genotypes faced with PPV is extremely diverse: from susceptibility in Prunus persica sp. (Escalettes et al, 1998) to resistance for the Prunus davidiana clone 1908 (Pascal et al, 2002;Decroocq et al, 2005) and delayed resistance or hypersusceptibility in European plum cultivars Hartmann, 1998Hartmann, , 2002Kegler et al, 2001). However, it is in apricot (Prunus armeniaca) that the most diverse behaviour has been described.…”

Section: Introductionmentioning

confidence: 99%

Plum pox virus induces differential gene expression in the partially resistant stone fruit tree Prunus armeniaca cv. Goldrich

Schurdi‐Levraud¹,

Hullot²,

Wawrzynczak³

et al. 2006

Gene

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Genetic Resistance to Plum Pox Potyvirus in Peaches

Cited by 14 publications

References 0 publications

Quantitative trait loci analysis of Plum pox virus resistance in Prunus davidiana P1908: new insights on the organization of genomic resistance regions

Quantitative trait loci analysis of Plum pox virus resistance in Prunus davidiana P1908: new insights on the organization of genomic resistance regions

Flanking the major Plum pox virus resistance locus in apricot with co-dominant markers (SSRs) derived from candidate resistance genes

Plum pox virus induces differential gene expression in the partially resistant stone fruit tree Prunus armeniaca cv. Goldrich

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