Behaviour of apricot (Prunus armeniaca L.) cultivars in the presence of sharka (plum pox potyvirus): a review

Abstract

International audienceInformation concerning the evaluation of apricot resistance to sharka (plum pox potyvirus) has in many cases been published in journals of limited circulation. In an attempt to assess the actual status of this resistance, a global review has been made, including 222 cultivars, 175 of which can be considered as susceptible, 27 as resistant and 20 as cultivars of uncertain classification. Such a doubtful classification could be due to differences in evaluation methods, the isolates used, or to the authenticity of the plant material. The results seem to indicate that the main origin of resistance to sharka could be North American cultivars, although other resistant sources have been found in Central Europe.Comportement des cultivars d'abricotier (Prunus armenica L.) à la sharka (plum pox potyvirus) : une revue. Les informations concernant l'évaluation du comportement de l'abricotier à la sharka sont fréquemment publiées dans des journaux à faible audience. La présente revue se propose de synthétiser ces informations dispersées : 222 cultivars sont pris en compte, 175 d'entre eux pouvant être considérés comme sensibles, 27 comme résistants et 20 pour lesquels la classification est incertaine. Cette classification douteuse peut être due à des différences dans les méthodes d'évaluation, aux isolats utilisés ou à l'authenticité du matériel végétal. Les résultats semblent indiquer que la principale source de résistance à la sharka aurait pour origine les cultivars nord-américains bien que d'autres sources de résistance ont été trouvées en Europe centrale

Identification and mapping of a locus conferring plum pox virus resistance in two apricot-improved linkage maps

“…To analyze SSRs selected for MAS, two additional segregating populations were used, 'Goldrich × Canino' (G×Ca) derived from the cross between the PPV-resistant cultivar 'Goldrich' and the PPV-susceptible cultivar 'Canino,' and an extension of the 'L×L-98' family designated as 'L×L-00'. A total of 7 PPV-resistant ('SEO,' 'Lito,' 'Goldrich,' 'Harcot,' 'Sunglo,' 'Veecot,' and 'Pandora') and 11 PPVsusceptible apricot cultivars ('Tyrinthos,' 'Currot,' 'Ginesta, ' 'Canino,' 'Mitger,' 'Palau,' 'Bergeron,' 'Katy,' 'Pepito,' 'Moniquí,' and 'Colorao';Martínez-Gómez et al 2000) were also used to test those SSRs selected for MAS.…”

Apricot Breeding at the Faculty of Horticulture in Lednice

“…Some of these natural sources of resistance to PPV in apricot were first identified in North America [15] and since then have been widely exploited in breeding programs [16,17]. There are different propositions about the genetic control of resistance to PPV in apricot, involving one, two or three genes [8,18].…”

Origin of resistance to plum pox virus in Apricot: what new AFLP and targeted SSR data analyses tell

“…As a result of the intensive search for a source of resistance within available apricot germplasm, some North American cultivars ['Stark Early Orange' (SEO), 'Goldrich', 'Harlayne', 'Stella', and others] were found to have natural resistance to PPV (Martinez-Gomez et al 2000). These cultivars were used as donors for a resistance trait in conventional breeding programs based on crosses between resistant and the best local cultivars susceptible to virus.…”