Inheritance of tuber greening under light exposure in diploid potatoes

Jakuczun, H.; Zimnoch‐Guzowska, E.

doi:10.1007/bf02872157

Cited by 8 publications

(6 citation statements)

References 25 publications

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“…The external tuber greening and tuber greening depth were correlated and the most important QTLs, that affected them, overlapped. Additional, minor QTLs were year-and/or trait-specific, which is in agreement with the results obtained by Jakuczun and Zimnoch-Guzowska [11], who postulated that the external tuber greening and its depth may be partially independently inherited. In contrast, an earlier study which has dissected tuber greening into three components (external colour, internal colour and its depth), has suggested that they are inherited independently and all three of them should be considered in breeding programs aiming at tuber greening resistance [10].…”

Section: Discussionsupporting

confidence: 91%

“…The intensity of tuber greening may be affected by the allelic diversity of a large number of genes involved in those processes but also by the factors like skin colour, thickness and texture, tuber flesh colour and density, as well as many environmental factors [4]. Our data only partially confirmed previous reports and our main hypothesis on polygenic inheritance of tuber greening [7][8][9][10][11]. The described landscape of the potato genome regions significant for tuber greening 1 3 resistance is an indication that in spite of the large number of the genes potentially important for the trait, some factors located on the chromosomes VII and X play key roles and determine big parts of the observed tuber greening variation under natural light exposure in the greenhouse.…”

Section: Discussionsupporting

confidence: 87%

“…The three components of greening appeared to be independent [10]. In contrary, Jakuczun and Zimnoch-Guzowska [11] have found significant and relatively high correlations between external greening and depth of tuber greening when studying 17 unselected diploid potato families, although they have suggested that the two studied greening components might have been inherited partially independently. Valuable source of resistance to tuber greening has been identified in wild species Solanum microdontum using a different approach [12].…”

Section: Introductionmentioning

confidence: 89%

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Quantitative trait loci analysis of potato tuber greening

et al. 2020

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A conversion of amyloplasts into chloroplasts in the potato tuber after light exposure is known as tuber greening and is one of the major causes of tuber loss. We report here the first mapping of the factors affecting tuber greening in potato. We used an F1 mapping population of diploid potatoes and DArTseq™ markers to construct a genetic map. The individuals of the mapping population, parents and standards were phenotyped for two tuber greening parameters: external tuber greening and internal greening depth on 0-5 scales in three years 2015, 2016 and 2018. The results were used for the analysis of Quantitative Trait Loci (QTLs) by an interval QTL mapping. Two most important QTLs were covering large regions of chromosomes VII and X and had the strongest effect on both greening parameters in data sets obtained in particular years and in the mean data set. Variance observed in the mean tuber greening could be ascribed in 16.9% to the QTL on chromosome VII and in 23.4% to the QTL on chromosome X. The QTL on chromosome VII explained 13.1%, while the QTL on chromosome X explained up to 17.7% of the variance in the mean tuber greening depth. Additional, minor QTLs were year-and/or traitspecific. The QTLs on chromosomes VII and X determine big parts of the observed tuber greening variation and should be investigated further in order to identify the genes underlying their effects but also should be taken into account when selecting non-greening potato lines in the breeding process.

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Section: Discussionsupporting

confidence: 91%

Section: Discussionsupporting

confidence: 87%

Section: Introductionmentioning

confidence: 89%

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Quantitative trait loci analysis of potato tuber greening

et al. 2020

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“…Table 2 shows that this kind of subjective general scoring of a bulk was consistent enough over two trials (reps) to usefully characterize populations. This is in harmony with the consensus of previous studies that visual scoring corresponds well to quantitative measures of chlorophyll (Jakuczun and Zimnoch-Guzowska 2006). The populations response could be summarized as being 20 %G, 70 %V, 10 %W (Table 2).…”

Section: Resultsmentioning

confidence: 87%

Variation for Tuber Greening in the Diploid Wild Potato Solanum Microdontum

et al. 2015

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Greening of the tuber skin is an undesirable defect in fresh and processed potato. Tubers of 92 Solanum microdontum families represented by 12 individuals each were generated in the winter greenhouse in 2009-2010. These were evaluated in two trials of family bulks after 4 days of exposure to 200 ft candles of fluorescent white light at room temperature, similar to that observed in local grocery stores, and according to preliminary tests, able to turn some microdontum tubers very green. A qualitative score of green (G) or white (W) was assigned to each tuber. Tubers of about 10 % of families were scored as mostly W. In comparison, when 185 named Solanum tuberosum cultivars were illuminated in the same way, none from Europe or North America scored W. Two replicates of G and W individual tubers were selected from a variety of microdontum families and planted to create a new clonal generation of tubers. Those second generation daughter tubers showed a response to illumination which was consistent with that of the previous clonal generation. Finally, W and G clones were selected and mated. All GxG hybrids were uniformly G, but only three WxW crosses produced families that were nearly uniformly W. Thus some selections were shown to have consistent non-greening over trials spaced in time, over a clonal generation, and, when crossed together produced pure non-greening progeny. On the other hand, several very green selections similarly were consistently very green over time, clonal regeneration, and intermating. Tests of tuber tissue for glycoalkaloids showed that some illuminated clones neither green nor accumulate glycoalkaloids. These materials would make good models for further study of inheritance and physiology of the greening trait, and for breeding.Resumen El verdeo de la piel del tubérculo es un defecto indeseable en la papa fresca y para procesamiento. En invernadero en invierno de 2009-2010, se generaron tubérculos de 92 familias de Solanum microdontum representadas por 12 individuos cada una. Se evaluaron en dos ensayos en grupos de familia después de cuatro días de exposición a 200 pies candela de luz blanca fluorescente a temperatura ambiente, similar a lo que se observa en las tiendas locales de abarrotes, y de acuerdo a pruebas preliminares, capaces de mucho enverdecimiento de algunos tubérculos de microdontum. Se asignó a cada tubérculo una calificación cualitativa de verde (G) o blanca (W). Tubérculos de cerca del 10 % de las familias tuvieron calificaciones mayormente W. En comparación, cuando se iluminaron de la misma manera 185 variedades con nombre de Solanum tuberosum, ninguna de Europa o Norteamérica tuvo calificación de W. Se seleccionaron dos repeticiones de tubérculos individuales de G y W de una amplitud de familias de microdontum y se plantaron para crear una nueva generación clonal de tubérculos. Los tubérculos descendientes de esa segunda generación mostraron una respuesta a la iluminación consistente con la generación clonal previa. Finalmente, se seleccionaron y cruzaron clones W y G. Todo...

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“…Diploids outstanding in a low accumulation of reducing sugars after cold storage have been selected (Jakuczun et al 1995). For diploid clones with high table quality, additional attention was paid to the evaluation of blackening of fresh and cooked tuber flesh (Jakuczun and Eising 2003) and tendency of tuber greening under light exposure (Jakuczun and Zimnoch-Guzowska 2006).…”

Section: Directions Of Breeding Dplmentioning

confidence: 99%

Over 50 Years of Potato Parental Line Breeding Programme at the Plant Breeding and Acclimatization Institute in Poland

Zimnoch‐Guzowska

Flis

2021

Potato Res.

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The paper describes the potato parental line breeding programme developed in Poland from the 1960s. The aim of the programme was to create parental forms useful for speeding up the breeding of new potato varieties and getting higher efficiency in directed selection for desired traits. The programme introduced new sources of resistance and quality traits into the Polish breeding pool by conducting research and breeding of tetraploid and diploid parental lines. The programme had significant impact on potato breeding, with 72 Polish potato varieties originating from crossings involving parental lines. These varieties show higher levels of resistance to major pathogens of potato crops, including resistance to Potato virus Y and late blight in starch group. Besides the direct impact on potato breeding, the programme was the stimulus for developing studies focused on potato genotype.

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Inheritance of tuber greening under light exposure in diploid potatoes

Cited by 8 publications

References 25 publications

Quantitative trait loci analysis of potato tuber greening

Quantitative trait loci analysis of potato tuber greening

Variation for Tuber Greening in the Diploid Wild Potato Solanum Microdontum

Over 50 Years of Potato Parental Line Breeding Programme at the Plant Breeding and Acclimatization Institute in Poland

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