Stability and Broad-Sense Heritability of Mineral Content in Potato: Potassium and Phosphorus

Brown, Charles R.; Haynes, Kathleen G.; Moore, M.; Pavek, M. J.; Hane, D. C.; Love, S. L.; Novy, Richard G.

doi:10.1007/s12230-013-9323-2

Cited by 11 publications

(5 citation statements)

References 20 publications

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“…Moderate to high broad-sense heritability indicates that the phenotype is primarily driven by the genotypic effects and indicates that breeding efforts can make progress through selection (Piepho and Möhring, 2007). Similar moderate to high broad-sense heritabilities for minerals have been discovered in earlier studies (Brown et al, 2010;Brown et al, 2011;Brown et al, 2012;Haynes et al, 2012;Brown et al, 2013;Brown et al, 2014;Paget et al, 2014;Asfaw et al, 2018;Seid et al, 2023). Regarding Fe, the heritability estimates reported were not consistent.…”

Section: Discussionsupporting

confidence: 60%

“…For the past couple of decades, the International Potato Center (CIP) has been working on potato mineral biofortification to raise the amount of iron and zinc (Burgos et al, 2020), but other potato breeding programs have placed more emphasis over the past few decades on increasing yield potential, processing quality, and improving disease/pest resistances, typically without paying much attention to the mineral composition of tubers. Several studies have revealed significant genetic variation for mineral accumulation in potato tubers, pointing to the possibility of breeding for high mineral levels (Andre et al, 2007;Brown et al, 2010;Brown et al, 2011;Brown et al, 2012;Haynes et al, 2012;Brown et al, 2013;Brown et al, 2014;Subramanian et al, 2017;Navarre et al, 2019). There are no studies linking the mineral content of tubers with specific market groups (reds, russets, and chippers).…”

Section: Introductionmentioning

confidence: 99%

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Variation and genetic basis of mineral content in potato tubers and prospects for genomic selection

Pandey,

Gautam,

Scheuring

et al. 2023

Front. Plant Sci.

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Malnutrition is a major public health concern in many parts of the world. Among other nutrients, minerals are necessary in the human diet. Potato tubers are a good source of minerals; they contribute 18% of the recommended dietary allowance of potassium; 6% of copper, phosphorus, and magnesium; and 2% of calcium and zinc. Increased public interest in improving the nutritional value of foods has prompted the evaluation of mineral content in tubers of advanced genotypes from the Texas A&M Potato Breeding Program and the investigation of the genetics underlying mineral composition in tubers. The objectives of this study were to i) assess phenotypic variation for mineral content in tubers of advanced potato genotypes, ii) identify genomic regions associated with tuber mineral content, and iii) obtain genomic-estimated breeding values. A panel of 214 advanced potato genotypes and reference varieties was phenotyped in three field environments in Texas for the content of 12 minerals in tubers and genotyped using the Infinium Illumina 22K V3 single nucleotide polymorphism (SNP) Array. There was significant variation between potato genotypes for all minerals evaluated except iron. As a market group, red-skinned potatoes had the highest amount of minerals, whereas russets had the lowest mineral content. Reds had significantly higher P, K, S, and Zn than russets and significantly higher P and Mg than chippers. Russets had significantly higher Ca, Mg, and Na than chippers. However, the chippers had significantly higher K than the russets. A genome-wide association study for mineral content using GWASpoly identified three quantitative trait loci (QTL) associated with potassium and manganese content on chromosome 5 and two QTL associated with zinc content on chromosome 7. The loci identified will contribute to a better understanding of the genetic basis of mineral content in potatoes. Genomic-estimated breeding values for mineral macro and micronutrients in tubers obtained with StageWise will guide the selection of parents and the advancement of genotypes in the breeding program to increase mineral content in potato tubers.

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Section: Discussionsupporting

confidence: 60%

Section: Introductionmentioning

confidence: 99%

Variation and genetic basis of mineral content in potato tubers and prospects for genomic selection

Pandey,

Gautam,

Scheuring

et al. 2023

Front. Plant Sci.

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“…This suggests that breeding for high tuber Ca, Fe and Zn concentrations might have potential. Furthermore, the heritability of tuber mineral concentrations in potato were found to be moderately high (Brown et al 2010(Brown et al , 2011(Brown et al , 2012(Brown et al , 2013(Brown et al and 2014Haynes et al 2012;Paget et al 2014;Zorrilla et al 2014), indicating the possibility of mineral biofortification by plant breeding.…”

Section: Discussionmentioning

confidence: 99%

Variation in tuber mineral concentrations among accessions of Solanum species held in the Commonwealth Potato Collection

Subramanian

White

Broadley

et al. 2017

Genet Resour Crop Evol

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Abstract:The variation in tuber mineral concentrations amongst accessions of wild tuber-bearing Solanum species in the Commonwealth Potato Collection (CPC) was evaluated under greenhouse conditions. Selected CPC accessions, representing the eco-geographical distribution of wild potatoes, were grown to maturity in peat-based compost under controlled conditions. Tubers from five plants of each accession were harvested, bulked and their mineral composition analysed. Among the germplasm investigated, there was a greater range in tuber concentrations of some elements of nutritional significance to both plants and animals, such as (Ca, Fe and Zn; 6.7, 3.6, and 4.5-fold respectively) than others, such as (K, P and S; all <3-fold). Significant positive correlations were found between mean altitude of the species' range and tuber P, K, Cu and Mg concentrations. The amount of diversity observed in the CPC collection indicates the existence of wide differences in tuber mineral accumulation among different potato accessions. This might be useful in breeding for nutritional improvement of potato tubers. Powered by Editorial Manager® and ProduXion Manager® from Aries Systems Corporation AbstractThe variation in tuber mineral concentrations amongst accessions of wild tuber-bearing Solanum species in the Commonwealth Potato Collection (CPC) was evaluated under greenhouse conditions. Selected CPC accessions, representing the eco-geographical distribution of wild potatoes, were grown to maturity in peat-based compost under controlled conditions. Tubers from five plants of each accession were harvested, bulked and their mineral composition analysed. Among the germplasm investigated, there was a greater range in tuber concentrations of some elements of nutritional significance to both plants and animals, such as (Ca, Fe and Zn; 6.7, 3.6, and 4.5-fold respectively) than others, such as (K, P and S; all <3-fold). Significant positive correlations were found between mean altitude of the species' range and tuber P, K, Cu and Mg concentrations. The amount of diversity observed in the CPC collection indicates the existence of wide differences in tuber mineral accumulation among different potato accessions. This might be useful in breeding for nutritional improvement of potato tubers.

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“…Fruit and vegetable firmness is essentially determined by the strength of the cell walls. Stronger cell structures also decrease the chance that a potato will form brown or bruised spots [51]. This is of significance in relation to machine harvested tubers that are exposed to rough handling.…”

Section: Nutrient Contribution To Plant Growthmentioning

confidence: 99%

“…Correct potassium levels improve crop yield, tuber quality, decrease bruising and decrease sugar levels which in turn increase storability. This ensures that tubers can be stored for a longer period of time after harvesting [51]. Potatoes can be a notable sources of potassium in the human diet [52] with a 100 g tuber contributing up to 15% of daily nutrient reference values for potassium [40].…”

Section: Nutritional Analysis Of Potato Tubers (Flesh Only) From Elevmentioning

confidence: 99%

The Role of Biodiversity in Food Security and Nutrition: A Potato Cultivar Case Study

Niekerk¹,

Schönfeldt²,

Hall³

et al. 2016

FNS

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Biodiversity is considered a critical measure of the agricultural health of the world. Not only does increased biodiversity contribute to nutrient production and consumption, but it acts as a safeguard against food shortages due to pests and diseases by spreading the risk. Biodiversity can improve dietary diversity in such a way to ultimately contribute to improved food and nutrition security. As a result biodiversity is often highlighted in global discussions related to food and nutrition security. Potatoes (Solanum tuberosum L.) are highly biodiverse food crops, with more than 4000 different cultivars grown globally. The crop is sometimes considered as part of the vegetable component of food baskets, but it is mainly added to meals as a starch because potatoes have a high starch content and are thus high in energy. However, significant differences in the nutritional content (including micronutrient composition) of different potato cultivars have been reported in many countries. It is therefore proposed that specific cultivars could potentially contribute more to critical nutrients required in the diet of countries at risk of malnutrition. The nutritional profile (macronutrients and minerals) of 11 potato cultivars cultivated in sub-Saharan Africa was determined and the contribution which these different potatoes could make to the diet, and consequently to food and nutrition security, is discussed. The results showed that significant differences are found in the nutritional content between the different cultivars. Significant differences (p < 0.001) were found in macronutrients such as protein and fat as well as micronutrients such as copper, phosphorus and potassium. These results indicate the potentially beneficial role which a biodiverse range of crops such as potatoes, could play in the food and nutrition security of developing countries.

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Stability and Broad-Sense Heritability of Mineral Content in Potato: Potassium and Phosphorus

Cited by 11 publications

References 20 publications

Variation and genetic basis of mineral content in potato tubers and prospects for genomic selection

Variation and genetic basis of mineral content in potato tubers and prospects for genomic selection

Variation in tuber mineral concentrations among accessions of Solanum species held in the Commonwealth Potato Collection

The Role of Biodiversity in Food Security and Nutrition: A Potato Cultivar Case Study

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