Transmission of Verticillium wilt resistance to tetraploid potato via unilateral sexual polyploidization

Frost, Kenneth E.; Jansky, Shelley; Rouse, D. I.

doi:10.1007/s10681-005-9076-1

Cited by 15 publications

(8 citation statements)

References 24 publications

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“…All other clones are indicated by a triangle Table 3 EVect of selection stringency and single hill selection criterion on the percent of selected clones in both years a Percent clones retained in single hill trial (selection stringency) b Percent of common clones selected in single-hill that were selected in four-hill trial based on stem colonization c Both yield and symptom expression single hill trial, while six stems were collected from each plot in the four-hill trial. Stem-to-stem variability for stem colonization scores can be high, even among stems of the same plant (Frost 2005). Consequently, colonization data from a single stem may not accurately predict resistance.…”

Section: Discussionmentioning

confidence: 99%

“…Host resistance is thought to be the most promising method of managing VW. A few commercial cultivars such as 'Ranger Russet,' 'Ranger Nugget,' 'Reddale' and 'Defender' are reported to have moderate levels of resistance to VW but these cultivars have not replaced the most widely grown varieties (Frost et al 2006;Rowe and Powelson 2002). Therefore, eVorts have been employed to Wnd highly resistant sources from diploid wild species and also to improve the eYciency of breeding methods for VW resistance in potato (Concibido et al 1994;Rouse 2000, 2003;Jansky et al 2004).…”

Section: Introductionmentioning

confidence: 99%

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The potential for early generation selection to identify potato clones with resistance to Verticillium wilt

2008

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Verticillium wilt (VW) of potato, caused primarily by the fungus Verticillium dahliae, results in yield loss and is therefore an important soil-borne disease. Resistance to VW exists in potato germplasm and is used by breeders during cultivar development. Breeders could make more rapid progress toward the development of VW resistant clones if they had an eVective early generation selection strategy. The purpose of this study was to determine whether selection for VW resistance could be carried out in the Wrst tuber generation on single hills. One hundred and Wfty-two clones from 19 families were planted as single hills on a V. dahliae-infested Weld. Each plant was scored for vine maturity, VW symptom expression, yield, stem colonization (colony forming units (cfu), in dried basal stem segments) and incidence (percent infected stems). In the second clonal generation, which consisted of replicated four-hill plots, stem colonization scores and incidence values were used to identify clones which were more resistant than a moderately resistant cultivar and others which were more susceptible than a susceptible cultivar. The eYciency and reliability of the single-hill selection strategy, based on symptoms and yield, was then determined by comparison to the four-hill results. We determined that the best single-hill selection strategy was negative selection (discard clones with the lowest performance) with low stringency, based on yield.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The potential for early generation selection to identify potato clones with resistance to Verticillium wilt

2008

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“…Unilateral sexual polyploidization (USP) has been used successfully to create hybrids with resistance to bacterial wilt (Watanabe et al, 1992), early blight (Herriott et al, 1990), common scab (Murphy et al, 1995), late blight (Watanabe et al, 1999), potato cyst nematode (De Maine et al, 1986; Ortiz et al, 1997), root knot nematode ( Meloidogyne spp.) (Iwanaga et al, 1989; Watanabe et al, 1999), Verticillium wilt (caused by Verticillium albo‐atrum Reinke & Berthier) (Frost et al, 2006), and bacterial soft rot (Carputo et al, 2000; Capo et al, 2002). Bilateral sexual polyploidization (BSP) provides an alternative to USP.…”

Section: Introgression Of Wild Species Into Cultivated Potatomentioning

confidence: 99%

Are We Getting Better at Using Wild Potato Species in Light of New Tools?

Bethke¹,

Halterman

Jansky³

2017

Crop Science

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Potato (Solanum tuberosum L.), mankind's third most consumed food crop, originated as an interspecific hybrid in the Andean highlands. More than 100 species closely related to potato exist throughout Central and South America. Potato was introduced to Europe, Asia, and North America in the 16th and 17th centuries, but most cultivars were destroyed by late blight epidemics in the mid‐19th century. Late blight resistance genes from the wild relative Solanum demissum Lindl. were subsequently introduced into cultivated potato. Thus, a precedent for the use of wild relatives in potato genetic improvement was established a century ago. Intensive efforts have been made to collect and maintain wild relatives of potato in public germplasm repositories. Genetic diversity in these species is high, and most are sexually compatible with cultivated potato. Perhaps more than any other vegetable crop, potato can benefit from the introgression of genes for valuable traits from wild relatives. However, a century of breeding has realized that potential on only a few notable occasions. Important examples include improved processing quality and resistance to viruses and nematodes. Substantial barriers prevent the facile incorporation of genetic material from wild relatives into potato cultivars. Overcoming these barriers may require an expansion of germplasm collections to include well‐characterized individuals as a complement to population‐based accessions. To be most useful for potato improvement, individual wild species plants will need to be cataloged by allelic composition, haplotype, biochemical properties, and physiological responses to stress. Effectively using the genetic diversity in wild relatives is likely to rely heavily on alternative methods of potato breeding, augmenting reassortment, and selection at the tetraploid level with diploid breeding and genetic modification using biotechnology.

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“…The existence of a similar race structure of V. dahliae populations in potato is also known, and thus, resistant cultivars offer the most effective method of managing this disease (Jansky 2009;Jansky and Miller 2010;Jansky and Rouse 2003;Simko and Haynes 2016). Many popular potato cultivars are still susceptible to Verticillium wilt (Arbogast et al 1999;Frost et al 2006;Jansky 2009;Jansky and Miller 2010), despite significant efforts to breed for resistance. Resistance against Verticillium wilt from diploid Solanum species could be transferred to tetraploid potato, and diploid Solanum species could be a good source of resistance.…”

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confidence: 99%

Assessment of Resistance in Potato Cultivars to Verticillium Wilt Caused by Verticillium dahliae and Verticillium nonalfalfae

Wang

et al. 2019

Plant Disease

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Verticillium wilt caused by Verticillium spp., also called potato early dying disease, is one of the most serious soilborne diseases affecting potato production in China. The disease has been expanding into most potato production areas over the past few years. Information on host resistance against Verticillium wilt among the potato cultivars in China is scarce, but it is critical for sustainable management of the disease. This study, therefore, evaluated 30 commercially popular potato cultivars against Verticillium dahliae strain Vdp83 and Verticillium nonalfalfae strain Vnp24, two well-characterized strains causing Verticillium wilt of potato in China. Both strains were isolated from diseased potato plants, and they were previously proven to be highly virulent. Ten plants of each cultivar were inoculated with the V. dahliae strain and incubated on greenhouse benches. Symptoms were rated at weekly intervals, and the relative area under the disease progress curve was calculated. The experiment was repeated once, and nonparametric analysis was used to calculate the relative marginal effects and the corresponding confidence intervals. Five resistant cultivars and four susceptible cultivars identified from the analyses were then challenged with the V. nonalfalfae strain. Cultivar responses to V. nonalfalfae were like those exhibited against V. dahliae, except for one cultivar. This study showed that resistance among potato cultivars exists in China against Verticillium spp. and that the resistance to V. dahliae identified in potato is also effective against the other Verticillium species that cause Verticillium wilt with a few exceptions. Cultivars identified as resistant to Verticillium wilt can be deployed to manage the disease until the breeding programs develop new cultivars with resistance from the sources identified in this study.

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Transmission of Verticillium wilt resistance to tetraploid potato via unilateral sexual polyploidization

Cited by 15 publications

References 24 publications

The potential for early generation selection to identify potato clones with resistance to Verticillium wilt

The potential for early generation selection to identify potato clones with resistance to Verticillium wilt

Are We Getting Better at Using Wild Potato Species in Light of New Tools?

Assessment of Resistance in Potato Cultivars to Verticillium Wilt Caused by Verticillium dahliae and Verticillium nonalfalfae

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