The Effect of Seed‐Tuber Physiological Age and Cultivar on Early Potato Production

Asiedu, Samuel K.; Astatkie, Tess; Yiridoe, Emmanuel K.

doi:10.1046/j.1439-037x.2003.00032.x

Cited by 12 publications

(9 citation statements)

References 11 publications

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“…This may be related to the physiological state of the propagated seed tubers that were used as starting material in the field trial of 2012. Seed tubers should be propagated at least one cycle to carry out more reliable field trials as the physiological state of seed tubers may have an strong effect on plant development (Asiedu et al 2003).…”

Section: Discussionmentioning

confidence: 99%

Multi-allelic QTL analysis of protein content in a bi-parental population of cultivated tetraploid potato

et al. 2019

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Protein content is a key quality trait for the potato starch industry. The objective of this study was to identify allele-specific quantitative trait loci (QTLs) for tuber protein content in cultivated potato ( Solanum tuberosum L.) at the tetraploid level. We analysed 496 full-sib F 1 clones in a 3-year field trial to dissect the complex genetic architecture of soluble tuber protein content. Genotypic data from a 60K single nucleotide polymorphism (SNP) array was used for SNP dosage scoring, constructing homologue specific linkage maps and assembly of a dense integrated chromosomal linkage map. From the integrated map, probabilistic multi-locus identity-by-descent (IBD) haplotypes (alleles) were estimated and used to detect associations between the IBD haplotypes and the phenotypic trait values. Moderate levels of trait heritability were estimated between 40 and 74% that correspond with previous studies. Our contemporary naive analysis identified potential additive QTLs on chromosomes 2 , 3 , 5 (top arm) and 9 across the years. Moreover, cofactor QTL analysis identified two masked QTLs on chromosomes 1 and 5 (lower arm). The QTLs on chromosomes 2 , 5 (lower arm) and 9 are reported here for the first time. The QTLs that we identified on chromosomes 1 , 3 and 5 (top arm) show overlap with previous studies for protein content in potato. Collectively the naive QTLs explained 12 to 17% of the phenotypic variance. The underlying alleles of the QTLs provided both positive and negative effects on the phenotype. Our work uncovers the complex genetic architecture of this trait and describes potential breeding strategies for improvement. As protein has emerged as a high-value component from industrial potato starch production, the dissection of the genetic architecture and subsequent improvement of this trait by breeding has great economic and environmental relevance. Electronic supplementary material The online version of this article (10.1007/s10681-018-2331-z) contains supplementary material, which is available to authorized users.

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Section: Discussionmentioning

confidence: 99%

Multi-allelic QTL analysis of protein content in a bi-parental population of cultivated tetraploid potato

et al. 2019

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“…Potato cultivars are maintained as vegetatively propagated clones. The origin and physiological status of the planting material (seed tubers) may already have a profound impact on the plant (Asiedu et al 2003). Therefore, it is required to plant trial fields with seed tubers which have been propagated, stored and sprouted under identical conditions for at least one propagation cycle.…”

Section: Introductionmentioning

confidence: 99%

Phenotypic Analyses of Multi-Environment Data for Two Diverse Tetraploid Potato Collections: Comparing an Academic Panel with an Industrial Panel

et al. 2011

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Phenotypic analyses of two different association panels of tetraploid potato cultivars are presented. Association panels are sets of variously related genotypes assembled for association analysis purposes. The aims of this research were to inspect, analyse and compare two phenotypic data sets, a first step in association mapping analysis. Variance components for genotypic main effects and genotype-by-environment interactions were calculated, and estimates for the random genotypic main effects were produced. The genotypic main effects for 19 agro-morphological and quality traits were used to study trait by trait correlations within each panel. In addition, for the genotypes shared by both panels, the correlation of genetic main effects between the panels was investigated. The heritability of all traits was high and no large differences were observed between panels. Coefficients of trait variation were highly correlated (r=0.9) for both panels and trait by trait correlations in both panels showed highly similar patterns. These results demonstrate that a single-year balanced field trial as well as using breeders' records yields robust phenotypic information that can be used in a genome-wide association study. Issues related to data management and definition of traits are discussed.

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“…Physiological age of seed tuber affects emergence, canopy structure, number of stems per plant, number of tubers per stem, tuber size distribution and crop yield (Van Ittersum 1992, Struik and Wiersema 1999, Asiedu et al 2003. The storage duration and conditions factors during storage, i.e.…”

Section: Introductionmentioning

confidence: 99%

Impact of selenium enrichment on seed potato tubers

Turakainen¹,

Hartikainen²,

Sarjala³

et al. 2008

AFSci

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The aim of this study was to investigate the effect of Se enrichment on the growth of sprouts and growth vigour of seed potatoes (Solanum tuberosum L.) stored for 2 to 8 months. Our results showed that Se did not affect the duration of dormancy. At the high addition levels (0.075 and 0.9 mg kg -1 quartz sand), Se had some positive effects on the growth of sprouts. The peak sprouting capacity was reached after 8 months of storage. The highest Se enrichment of tubers had some positive effect on the free putrescine content in sprouts. However, the better growth of sprouts was not consistent with the growth vigour of the seed tubers and yield produced. Selenium had no significant effect on the malondialdehyde (MDA) or on the concentration of soluble sugars and starch. No significant effect of added Se on the early growth, stem and tuber numbers and yield parameters was observed. Irrespective of the level of Se added, the highest yield was harvested from plants produced with seed tubers stored for 6 months. Our results indicate that Se had some positive effects on the growth of sprouts, but it had no consistent effect on the growth vigour of seed tubers.

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The Effect of Seed‐Tuber Physiological Age and Cultivar on Early Potato Production

Cited by 12 publications

References 11 publications

Multi-allelic QTL analysis of protein content in a bi-parental population of cultivated tetraploid potato

Multi-allelic QTL analysis of protein content in a bi-parental population of cultivated tetraploid potato

Phenotypic Analyses of Multi-Environment Data for Two Diverse Tetraploid Potato Collections: Comparing an Academic Panel with an Industrial Panel

Impact of selenium enrichment on seed potato tubers

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