A breeding method for accelerated development of cold chipping clones in potato

Thill, Christian A.; Peloquin, S. J.

doi:10.1007/bf01677559

Cited by 30 publications

(22 citation statements)

References 18 publications

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“…The potato breeding community has strived for many decades to develop "cold chippers," cultivars that do not accumulate reducing sugars during cold storage (Mackay et al, 1990;Pereira et al, 1994;Thill and Peloquin, 1995;Xiong et al, 2002). Although slow progress has been made over the past several decades toward developing cultivars that maintain relatively low amounts of reducing sugars during cold storage (Love et al, 1998;Hamernik et al, 2009), none of the cultivars in production can be stored at cold temperatures without undergoing CIS.…”

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confidence: 99%

Suppression of the Vacuolar Invertase Gene Prevents Cold-Induced Sweetening in Potato

et al. 2010

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Potato (Solanum tuberosum) is the third most important food crop in the world. Potato tubers must be stored at cold temperatures to prevent sprouting, minimize disease losses, and supply consumers and the processing industry with highquality tubers throughout the year. Unfortunately, cold storage triggers an accumulation of reducing sugars in tubers. Hightemperature processing of these tubers results in dark-colored, bitter-tasting products. Such products also have elevated amounts of acrylamide, a neurotoxin and potential carcinogen. We demonstrate that silencing the potato vacuolar acid invertase gene VInv prevents reducing sugar accumulation in cold-stored tubers. Potato chips processed from VInv silencing lines showed a 15-fold acrylamide reduction and were light in color even when tubers were stored at 4°C. Comparable, low levels of VInv gene expression were observed in cold-stored tubers from wild potato germplasm stocks that are resistant to cold-induced sweetening. Thus, both processing quality and acrylamide problems in potato can be controlled effectively by suppression of the VInv gene through biotechnology or targeted breeding.

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confidence: 99%

Suppression of the Vacuolar Invertase Gene Prevents Cold-Induced Sweetening in Potato

et al. 2010

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“…Na C2, a avaliação foi indireta, pela coloração exibida pelo clone após a fritura. Genótipos que são indicados para o processamento na forma de chips devem apresentar-se dentro de um escore aceitável já nas primeiras gerações clonais (THILL & PELOQUIN, 1995). Um dos principais fatores que deve ter contribuído para limitar os valores de correlações nessas gerações foi a variação não-genética entre os Tabela 1 -Estimativas dos parâmetros genético-estatísticos para a produção de tubérculos, peso específico de tubérculos, teor de açúcares redutores e porcentagem de tubérculos graúdos na primeira geração colonal (C1) e na segunda geração clonal (C2).…”

Section: Resultsunclassified

Seleção assistida por marcadores para teor de matéria seca e açúcares redutores em tubérculos de batata

et al. 2009

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RESUMO A seleção precoce de clones que possuam níveis elevados de matéria seca e baixos teores de açúcares redutores é uma necessidade nos programas de melhoramento para a qualidade de processamento da batata (Solanum tuberosum L.) na forma de palitos fritos ou chips. A seleção precoce tornouse possível com a utilização de marcadores genéticos ABSTRACT Early generation selection for clones with high content of tuber dry matter and low levels of reducing sugars is required for potato (Solanum tuberosum L.) processing. Selection of superior clones at early generations became possible with the deployment of genetic markers, and can precisely identify the superior individuals. Therefore, it is necessary to identify genetic markers closely linked to genes of interest to do assisted selection. The aim of this research was to

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“…The first generation is usually in single-hill plots, followed by clone generations of plots with variable and increasing number of hills (Bisognin 2003) to phenotypic select clones. In the first generation of selection, a large number of clones can be discarded, which reduces costs and facilitate the identification of superior clones to introduce in the crossing block (Thill and Peloquin 1995). If the purpose is to combine characters by recurrent selection, an evaluation and selection strategy to identify desirable clones should be developed and applied as soon as possible in the breeding program (Bisognin and Douches 2002).…”

Section: Introductionmentioning

confidence: 99%