Evaluation of Resistance to Sharka in the Breeding Apricot Program in Cebas-Csic in Murcia (Spain)

Martínez-Gómez, P.; Dicenta, F.

doi:10.17660/actahortic.1999.488.122

Cited by 26 publications

(17 citation statements)

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“…These results confirm the high susceptibility of ÔGF305Õ described by Bernhard et al (1969) and its interest as an index rootstock in the evaluation of PPV resistance in Prunus as indicated by different authors (Gabova 1994, Martı´nez-Go´mez andDicenta 1999a). The susceptibility observed in the commonly used apricot and plum rootstock ÔPuebla de SotoÕ, which has a high tendency to produce suckers (frequently visited by aphids), indicates a potential risk of spread of the disease when using this rootstock.…”

Section: Discussionsupporting

confidence: 84%

Evaluation of resistance to sharka (Plum pox virus) of several Prunus rootstocks

Rubio

Martínez‐Gómez

Pinochet³

et al. 2005

Plant Breeding

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Sharka (Plum pox virus, PPV) severely affects the production of most Prunus species in the areas affected by the disease. In this study, the resistance of 15 Prunus rootstocks to a Dideron type isolate of PPV was evaluated under controlled conditions in an insect-proof greenhouse. After four cycles of study, ÔGF677Õ almond · peach hybrid, ÔMyrobolan 29CÕ plum and ÔL2Õ cherry did not show any symptoms and were ELISA-DASI and RT-PCR negative. These were considered resistant to PPV. The rest of the rootstocks assayed showed symptoms of sharka (confirmed by ELISA-DASI or RT-PCR), although the level of susceptibility was different for each rootstock. ÔGF305Õ peach, ÔPuebla de SotoÕ plum and ÔReal FinoÕ apricot, were highly susceptible to PPV, showing strong sharka symptoms and being ELISA and RT-PCR positive. ÔMarianna 2624Õ plum, ÔAC 9921-07Õ hybrid and ÔCP-2Õ plum showed susceptibility to PPV confirmed by ELISA-DASI and RT-PCR positives. ÔNemaguardÕ and ÔNemaredÕ hybrids, ÔTorinelÕ plum and ÔSTN2Õ hybrid showed an intermediate susceptibility to PPV with slight sharka symptoms and were ELISA-DASI and RT-PCR positive. Whereas, ÔMontclarÕ peach and ÔEvricaÕ hybrid showed moderate resistance to PPV with slight sharka symptoms and were ELISA positive but RT-PCR negative. The results open new possibilities in the search for different sources of resistance to PPV within Prunus.

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Section: Discussionsupporting

confidence: 84%

Evaluation of resistance to sharka (Plum pox virus) of several Prunus rootstocks

Rubio

Martínez‐Gómez

Pinochet³

et al. 2005

Plant Breeding

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“…The GF305 peach, characterised by its high susceptibility to PPV, was used as rootstock. Plants were soil‐grown in 2‐l pots, in controlled conditions in an insect‐proof greenhouse, and fertilised with a complete nutrient solution (Martínez‐Gómez and Dicenta 1999).…”

Section: Methodsmentioning

confidence: 99%

“…Obtaining apricot cultivars resistant to sharka is one of the main objectives of the breeder. The evaluation of a programme for PPV resistance is time‐consuming and very expensive (Martínez‐Gómez and Dicenta 1999). Therefore, the search for molecular markers associated with resistance would be of great interest.…”

Section: Introductionmentioning

confidence: 99%

Response of antioxidative enzymes to plum pox virus in two apricot cultivars

Hernández

Talavera

Martínez‐Gómez

et al. 2001

Physiologia Plantarum

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Recent evidence has indicated that activated oxygen species (AOS) may function as molecular signals in the induction of defence genes. In the present work, the response of antioxidative enzymes to the plum pox virus (PPV) was examined in two apricot (Prunus armeniaca L.) cultivars, which behaved differently against PPV infection. In the inoculated resistant cultivar (Goldrich), a decrease in catalase (CAT) as well as an increase in total superoxide dismutase (SOD) and dehydroascorbate reductase (DHAR) activities were observed. Ascorbate peroxidase (APX), glutathione reductase (GR) and monodehydroascorbate reductase (MDHAR) did not change significantly in relation to non-inoculated (control) plants. In the susceptible cultivar (Real Fino), inoculation with PPV brought about a decrease in CAT, SOD and GR, whereas a rise in APX, MDHAR and DHAR activities was found in comparison to non-inoculated (control) plants. Apricot leaves contain only CuZn-SOD isozymes, which responded differently to PPV depending on the cultivar. Goldrich leaves contained 6 SODs and both SOD 1 and SOD 2 increased in the inoculated plants. In leaves from Real Fino, 5 SODs were detected and only SOD 5 was increased in inoculated plants. The different behaviour of SODs (H2O2-generating enzymes) and APX (an H2O2-remover enzyme) in both cultivars suggests an important role for H2O2 in the response to PPV of the resistant cultivar, in which no change in APX activity was observed. This result also points to further studies in order to determine if an alternative H2O2-scavenging mechanism takes place in the resistant apricot cultivar exposed to PPV. On the other hand, the ability of the inoculated resistant cultivar to induce SOD 1 and SOD 2 as well as the important increase of DHAR seems to suggest a relationship between these activities and resistance to PPV. This is the first report about the effect of PPV infection on the antioxidative enzymes of apricot plants. It opens the way for the further studies, which are necessary for a better understanding of the role of antioxidative processes in viral infection by PPV in apricot plants.

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“…Currently, most apricot breeding programs in Europe use the PPV-resistant North American cultivars to introduce this trait into European germplasm. Resistance among apricots has been found only in some North American cultivars such as "Goldrich," "Harlayne," "Stark Early Orange," (SEO) "Stella" and "Harcot" [30,31].…”

Section: Kostina Et Al Compared the Inheritance Of Dormancy Length Imentioning

confidence: 99%

Genetic Apricot Resources and their Utilisation in Breeding

Krška¹

2018

Breeding and Health Benefits of Fruit and Nut Crops

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This chapter outlines the evolution of apricot which took place not only in its original gene centers but also after its domestication in new, secondary areas. During this process, Ice Age, migration of nations as well as the influence of mountains played a significant role in the diversity of this fruit species where many clones of genetically similar cultivars and ecological groups of apricots were formed. The chapter presents the list of donors of main biological and economic properties which are important in breeding to increase the adaptability of the species. The chapter summarizes some of the breeding results and inheritance of characters related to frost hardiness of blossom buds, fruits and plum pox virus (PPV).

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Evaluation of Resistance to Sharka in the Breeding Apricot Program in Cebas-Csic in Murcia (Spain)

Cited by 26 publications

References 0 publications

Evaluation of resistance to sharka (Plum pox virus) of several Prunus rootstocks

Evaluation of resistance to sharka (Plum pox virus) of several Prunus rootstocks

Response of antioxidative enzymes to plum pox virus in two apricot cultivars

Genetic Apricot Resources and their Utilisation in Breeding

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