QTL Analysis of Late Blight Resistance in a Diploid Potato Family of Solanum spegazzinii × S. chacoense

Chakrabarti, S. K.; Singh, B. P.; Thakur, Garima; Tiwari, Jagesh Kumar; Kaushik, S. K.; Sharma, Sanjeev; Bhardwaj, Vinay

doi:10.1007/s11540-014-9249-1

Cited by 15 publications

(5 citation statements)

References 17 publications

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“…Early potato researchers identified multiple late blight resistance genes (e.g., R1-R11 ) from Solanum demissum , a wild hexaploid species indigenous to Mexico. Breeders incorporated these resistance genes into cultivated potato ( Black et al., 1953 ; Malcolmson and Black, 1966 ; Umaerus and Umaerus, 1994 ; Chakrabarti et al., 2014 ; Lindqvist-Kreuze et al., 2021 ). Resistance derived from S. demissum appeared as dominant R genes inducing a hypersensitive response.…”

Section: Introductionmentioning

confidence: 99%

“…Resistance derived from S. demissum appeared as dominant R genes inducing a hypersensitive response. Each R gene was effective against only a specific race(s) of P. infestans indicating vertical resistance ( Chakrabarti et al., 2014 ). P. infestans had rapidly evolved to overcome those race-specific R genes through coevolution of matching avirulence.…”

Section: Introductionmentioning

confidence: 99%

“…P. infestans had rapidly evolved to overcome those race-specific R genes through coevolution of matching avirulence. Breeding programs with only one R gene could not successfully generate sustainably resistant clones against P. infestans ( Chakrabarti et al., 2014 ). The second concept, quantitative resistance (horizontal or general resistance), compensates for the disadvantage of reliance on a single race-specific resistance gene ( van der Plank, 1968 ).…”

Section: Introductionmentioning

confidence: 99%

“…Since both major and minor late blight resistance sources (e.g., genes or QTL) were observed from diverse wild potato species, such as Solanum demissum, S. bulbocastanum, S. polyadenium, S. stoloniferum, S. vernei , and S. verrucosum , ( Graham, 1963 ; Toxopeus, 1964 ; Black, 1970 ; Khiutti et al., 2015 ; Karki et al., 2021 ), various mapping populations were first developed with them, and then analyzed by researchers to localize new resistance genes or QTL. Major and minor late blight resistance QTL were detected across all the 12 fundamental potato chromosomes after inspecting ten different genetic studies conducted with multiple diploid (or di-haploid) bi-parental mapping populations having various wild potato species’ genetic backgrounds ( Leonards-Schippers et al., 1992 ; Leonards-Schippers et al., 1994 ; van Eck and Jacobsen, 1996 ; Collins et al., 1999 ; Visker et al., 2003 ; Simko et al., 2006 ; Śliwka et al., 2007 ; Wickramasinghe et al., 2009 ; Li et al., 2012 ; Chakrabarti et al., 2014 ). Chromosome 5 was most frequently identified as a hotspot for significant QTL relating to P. infestans ( Leonards-Schippers et al., 1992 ; Leonards-Schippers et al., 1994 ; Collins et al., 1999 ; Visker et al., 2003 ; Śliwka et al., 2007 ).…”

Section: Introductionmentioning

confidence: 99%

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Identification of QTL associated with plant vine characteristics and infection response to late blight, early blight, and Verticillium wilt in a tetraploid potato population derived from late blight-resistant Palisade Russet

Park,

Sathuvalli,

Yilma

et al. 2023

Front. Plant Sci.

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Potato late blight (causal agent Phytophthora infestans) is a disease of potatoes with economic importance worldwide. Control is primarily through field monitoring and the application of fungicides. Control of late blight with fungicides and host plant resistance is difficult, with documented cases of such control measures failing with the advent of new pathotypes of P. infestans. To better understand host plant resistance and to develop more durable late blight resistance, Quantitative Trait Locus/Loci (QTL) analysis was conducted on a tetraploid mapping population derived from late blight-resistant potato cultivar Palisade Russet. Additionally, QTL analyses for other traits such as Verticillium wilt and early blight resistance, vine size and maturity were performed to identify a potential relationship between multiple traits and prepare genetic resources for molecular markers useful in breeding programs. For this, one hundred ninety progenies from intercrossing Palisade Russet with a late blight susceptible breeding clone (ND028673B-2Russ) were assessed. Two parents and progenies were evaluated over a two-year period for response to infection by the US-8 genotype of P. infestans in inoculated field screenings in Corvallis, Oregon. In Aberdeen, Idaho, the same mapping population was also evaluated for phenotypic response to early blight and Verticillium wilt, and vine size and maturity in a field over a two-year period. After conducting QTL analyses with those collected phenotype data, it was observed that chromosome 5 has a significant QTL for all five traits. Verticillium wilt and vine maturity QTL were also observed on chromosome 1, and vine size QTL was also found on chromosomes 3 and 10. An early blight QTL was also detected on chromosome 2. The QTL identified in this study have the potential for converting into breeder-friendly molecular markers for marker-assisted selection.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Identification of QTL associated with plant vine characteristics and infection response to late blight, early blight, and Verticillium wilt in a tetraploid potato population derived from late blight-resistant Palisade Russet

Park,

Sathuvalli,

Yilma

et al. 2023

Front. Plant Sci.

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“…In India, mating type A2 is established in the temperate hills, while A1 dominates in the subtropical plains [38]. Studies reveal that this disease can be forecasted by temperature, rainfall, and relative humidity [38,39]. Bhattacharyya et al [40] used daily weather data and actual late blight occurrences to predict the conditions.…”

Section: Weather Conditionsmentioning

confidence: 99%

Climate Change Impacts on Potato Storage

Zhang,

Wang,

Kinay

et al. 2024

Foods

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In this study, we present a comprehensive literature review of the potential impacts of climate change on potato storage. Potato preservation can help reduce food loss and waste while increasing long-term food security, as potatoes are one of the most important crops worldwide. The review’s results suggest climate change can negatively affect potato storage, especially tuber sprouting and diseases in storage chambers. Lower Sielianinov coefficient values (indicating dry and hot conditions) during the vegetative season of potato growing can lead to earlier sprouting. For instance, a decrease of 0.05 in the Sielianinov coefficient during the growing season results in tubers stored at 3 °C sprouting 25 days earlier and tubers stored at 5 °C experiencing a 15-day reduction in dormancy. This is due to the fact that the dry and hot climate conditions during the vegetation period of potato planting tend to shorten potato tubers’ natural dormancy, which further leads to earlier sprouting during storage. Furthermore, high Sielianinov coefficient values may lead to worse disease situations. The results also suggest that research about the impacts of climate change on potato storage is very limited at the current stage, and further studies are needed to address the key knowledge gaps identified in this study.

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