Studies on the genetic basis of resistance to potato leaf roll virus, potato virus Y and potato virus X in Solanum brevidens using somatic hybrids of Solanum brevidens and Solanum tuberosum

Pehu, E.; Gibson, R. W.; Jones, Michael G. K.; Karp, A.

doi:10.1016/0168-9452(90)90107-y

Cited by 65 publications

(29 citation statements)

References 14 publications

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“…Plants were maintained as in vitro shoot cultures on Murashige & Skoog (1962) medium (Flow Laboratories) at pH 5-8. The plants were chosen because they had been used in previous experiments with PVX and PVY (Gibson et al, 1988Pehu et al, 1990). Their reaction to each virus seemed to be representative for each plant species and they had been used as parents in the production of somatic hybrids Jones, 1988).…”

Section: Methodsmentioning

confidence: 99%

“…For all these viruses, infection is systemic and resistance takes the form of a low virus titre in infected plants (Jones, 1979;Gibson et al, 1990). This resistance has been transferred to the S. tuberosum gene pool by somatic hybridization (Austin et al, 1985;Helgeson et al, 1986;Fish et aL, 1988;Gibson et al, 1988;Pehu et al, 1989Pehu et al, , 1990. Somatic hybrids (including aneuploids) between S. brevidens and PDH40, a dihaploid S. tuberosum genotype derived from cv.…”

Section: Introductionmentioning

confidence: 99%

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Resistance in Solanum brevidens to both potato virus Y and potato virus X may be associated with slow cell-to-cell spread

Valkonen¹,

Pehu²,

Jones³

et al. 1991

Journal of General Virology

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A series of experiments was carried out to investigate the nature of the resistance of the wild potato species, Solanum brevidens, to potato virus X (PVX) and potato virus Y (PVY). In vitro inoculation of leaf protoplasts of S. brevidens and the virus-susceptible dihaploid S. tuberosum genotype PDH40 with PVX or PVY using polyethylene glycol showed that protoplasts of both species were similar in susceptibility. However, examination of protoplasts prepared from the leaves of S. tuberosum and S. brevidens inoculated 2 to 5 weeks earlier showed that the percentage of PVX-and PVYinfected leaf cells of S. tuberosum were, respectively, 45-to 100-fold and about 1000-fold greater than the percentage of infected leaf cells of S. brevidens. These results suggest that resistance in S. brevidens to both PVX and PVY could be associated with slow cell-tocell spread rather than with slow virus replication.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Resistance in Solanum brevidens to both potato virus Y and potato virus X may be associated with slow cell-to-cell spread

Valkonen¹,

Pehu²,

Jones³

et al. 1991

Journal of General Virology

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“…S. chacoense seems to be the most promising source for potato breeding (Barker & Waterhause 1999). Genes for PLRV resistance were also found in S. demissum and S. acaule (Swiezinski et al 1989) and other species such as S. brevidens, S. etuberosum, S. pinnatisectum and S. verrucosum were also used in PLRV resistance breeding (Pehu et al 1990). Potato virus Y (PVY) strains can be classified at least into three groups, of which PVY 0 and PVY N are the most important.…”

Section: Resistance To Virusesmentioning

confidence: 99%

“…The species S. phureja and S. stoloniferum are sources of such genes (Ross 1986). Sources of PVY resistance became also available from somatic hybrids between S. brevidens and S. tuberosum (Pehu et al 1990) and this resistance seems active also against PLRV and PVX ( Uhrig et al 1992). …”

Section: Resistance To Virusesmentioning

confidence: 99%

Wild potato species: characterization and biological potential for potato breeding - a revoew

Heřmanová¹,

Bárta²,

Čurn³

2007

CZECH J GENET PLANT

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The potato belongs to Solanaceae, the family of about 90 genera and 2800 species. The genus Solanum consists of about 2000 species (Volkov et al. Abstract: Wild potato species (genus Solanum, section Petota) represent a tremendously diverse gene pool which is traditionally utilized as a source of diverse traits for potato breeding. Abiotic and biotic stress tolerance and resistance belong to the most frequently utilized traits of wild species in potato breeding programs. This review provides an introduction to the taxonomy, centre of diversity, genetic characteristics, evolution and important tolerance and resistance traits of wild potatoes and their use for potato breeding. The review has been written for readers who are interested in the problems of finding and utilization of new resistance genes from the wild genetic resources. REVIEW

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“…These variations may be due to the genotype/variety under study (33,34), environmental conditions, locality (11,35), ontogenetic alterations (i.e. 'gene tically programmed developmental changes taking place during a plant's life') (36), resistance to viral and bacterial diseases (37,38), insect inhibition (39), harvest and postharvest processes like drought (33), light exposure of the tubers (40) and wounding (41,42). …”

Section: Solasonine Measurementmentioning

confidence: 99%

Evaluation of Solasonine Content and Expression Patterns of SGT1 Gene in Different Tissues of Two Iranian Eggplant (Solanum melongena L.) Genotypes

Bagheri

Bushehri

Hassandokht

et al. 2017

Food Technol. Biotechnol.

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The family of Solanaceae (also known as nightshade family) is considered as a large plant family including essential crops such as potato, tomato, sweet pepper and lastly eggplant (1). In both tropical and temperate regions of the world, eggplant (Solanum melongena L., 2n=2x=24) has been cultivated for years, and regarded currently as an economically important vegetable plant (2). Phylogenetically, contrary to the other important Solanaceae fam- SummaryEggplant (Solanum melongena L.) is one of the most consumed vegetables in the world. The eggplant glycoalkaloids (GAs) are toxic secondary metabolites that may have detrimental effects on human health, particularly if the magnitudes of GAs are higher than the recommended food safety level (200 mg per kg of fresh mass). In this study, the content of solasonine compound and the expression patterns of solasodine galactosyltransferase (SGT1) gene were assessed in different tissues (mature leaves, flower buds, young, mature, and physiologically ripe fruits) of two Iranian eggplant genotypes (D1 and J10) under field conditions. The maximum mass fraction of solasonine in D1 was detected in flower buds (135.63 μg/g), followed by leaf (113.29 μg/g), physiologically ripe fruit (74.74 μg/g), young fruit (61.33 μg/g), and mature fruit (21.55 μg/g). Comparing both genotypes, the genotype of bitter fruits (J10) contained higher mass fraction of solasonine, as one of the main factors for producing bitter flavour of the plant. Regarding the expression profiles of SGT1, in both genotypes, the activity of the gene was increased nearly parallel with the concentration of solasonine. In the J10 geno type, transcript level of the gene was significantly higher than the genotype of sweet fruits (D1). Although both D1 and J10 genotypes are possibly recommendable for human food consumption, D1 is more suitable for daily diet.

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Studies on the genetic basis of resistance to potato leaf roll virus, potato virus Y and potato virus X in Solanum brevidens using somatic hybrids of Solanum brevidens and Solanum tuberosum

Cited by 65 publications

References 14 publications

Resistance in Solanum brevidens to both potato virus Y and potato virus X may be associated with slow cell-to-cell spread

Resistance in Solanum brevidens to both potato virus Y and potato virus X may be associated with slow cell-to-cell spread

Wild potato species: characterization and biological potential for potato breeding - a revoew

Evaluation of Solasonine Content and Expression Patterns of SGT1 Gene in Different Tissues of Two Iranian Eggplant (Solanum melongena L.) Genotypes

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