Review and Analysis of Limitations in Ways to Improve Conventional Potato Breeding

Bradshaw, J. E.

doi:10.1007/s11540-017-9346-z

Cited by 47 publications

(52 citation statements)

References 66 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Juvenile root vigour is a heritable trait and can be selected to improve the PUE of potato. The next step in developing potato genotypes with greater juvenile root vigour, PUpE and potential yield will be to identify the genetic basis of these traits by, for example, the detection of Quantitative Trait Loci using genetic-mapping populations (Bradshaw 2017;Fernandez-Pozo et al 2015). application.…”

Section: Accelerated Canopy Development Should Enable Greater Accumulmentioning

confidence: 99%

Juvenile root vigour improves phosphorus use efficiency of potato

et al. 2018

Self Cite

View full text Add to dashboard Cite

Aims Potato (Solanum tuberosum L.) has a large phosphorus (P)-fertiliser requirement. This is thought to be due to its inability to acquire P effectively from the soil. This work tested the hypothesis that early proliferation of its root system would enhance P acquisition, accelerate canopy development, and enable greater yields. Methods Six years of field experiments characterised the relationships between (1) leaf P concentration ([P]leaf), tuber yield, and tuber P concentration ([P]tuber) among 27 Tuberosum, 35 Phureja and 4 Diploid Hybrid genotypes and (2) juvenile root vigour, P acquisition and tuber yield among eight Tuberosum genotypes selected for contrasting responses to P-fertiliser. Results Substantial genetic variation was observed in tuber yield, [P]leaf and [P]tuber. There was a strong positive relationship between tuber yields and P acquisition among genotypes, whether grown with or without P-fertiliser. Juvenile root vigour was correlated with accelerated canopy development and both greater P acquisition and tuber biomass accumulation early in the season. However, the latter relationships became weaker during the season. Conclusions Increased juvenile root vigour accelerated P acquisition and initial canopy cover and, thereby, increased tuber yields. Juvenile root vigour is a heritable trait and can be selected to improve P-fertiliser use efficiency of potato.

show abstract

Section: Accelerated Canopy Development Should Enable Greater Accumulmentioning

confidence: 99%

Juvenile root vigour improves phosphorus use efficiency of potato

et al. 2018

Self Cite

View full text Add to dashboard Cite

show abstract

“…Potato breeding is routinely performed based on phenotypic selections of field trial data using recurrent selection, which can take 5–9 yr, until a cultivar is obtained (Gopal, 2015). In the initial stages of potato breeding, a large number of clones are tested to achieve gains in the numerous traits evaluated (up to 40 traits) (Bradshaw, 2017). Additionally, a large number of clones is needed at the beginning of the selection process because there is no new recombination during the process of evaluation and selection.…”

Section: Introductionmentioning

confidence: 99%

Accounting for spatial trends to increase the selection efficiency in potato breeding

et al. 2020

View full text Add to dashboard Cite

A crucial point in agricultural experimentation is to compare treatments with high accuracy. However, agricultural experimentation is prone to field heterogeneity, and a common source of error is the spatial variation between the plots used in an experiment. With plant breeding experiments, the high number of tested genotypes requires breeders to use large areas, which invariably increases the likelihood of spatial variation. The use of models that do not address this variation can lead to errors in selecting the best genotypes. Our goal was to evaluate the effects of two spatial models—first‐order autoregressive (AR1) and spatial analysis of field trials with splines (SpATS)—to control the spatial variation in 30 experiments from potato (Solanum tuberosum L.) breeding programs. Specifically, we sought to control for three traits: total tuber yield (TTY), marketable tuber yield (MTY), and tuber specific gravity (SG). The results obtained with the use of spatial models were compared with the base model (independent errors) based on precision, heritability, and the impact on the selection of the best clones. Spatial models were effective in controlling local and global errors and achieved greater accuracy and efficiency over the base model. The spatial approach also showed greater heritability for all analyzed traits. The spatial models led to differences in the clone ranking and consequently in the selection of the best clones. Thus, spatial analysis has the power to make more precise analyses, which leads to more accurate selections and should be used to analyze phenotype data of potato breeding programs.

show abstract

“…Potato germplasm collections are maintained worldwide (Bradshaw 2000), including at the International Potato Centre (CIP, Lima, Peru), the Dutch-German Potato Collection (CGN, Wageningen, the Netherlands), the Groß Lusewitz Potato Collection (GLKS, IPK, Groß Lusewitz, Germany), the Potato Collection of the Vavilov Institute (VIR, St Petersburg, Russia), the US Potato Genebank (NRSP-6, Sturgeon Bay, USA), in addition to the Commonwealth Potato Collection (CPC) which is now held at the James Hutton Institute (JHI), Dundee, Scotland. Wild potato species represent a diverse gene pool which might be utilized in breeding programmes as sources of valuable genes (reviewed by Bradshaw and Ramsay 2006).…”

Section: Introductionmentioning

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

View full text Add to dashboard Cite

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.

show abstract

Review and Analysis of Limitations in Ways to Improve Conventional Potato Breeding

Cited by 47 publications

References 66 publications

Juvenile root vigour improves phosphorus use efficiency of potato

Juvenile root vigour improves phosphorus use efficiency of potato

Accounting for spatial trends to increase the selection efficiency in potato breeding

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

Contact Info

Product

Resources

About