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Somaclonal Variation for Genetic Improvement of Starch Accumulation in Potato (Solanum tuberosum) Tubers

Starch content is one of the major quality criteria targeted by potato breeding programs. Traditional potato breeding is a laborious duty due to the tetraploid nature and immense heterozygosity of potato genomes. In addition, screening for functional genetic variations in wild relatives is slow and...

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Autores principales: Adly, Walaa M. R. M., Niedbała, Gniewko, EL-Denary, Mohammad E., Mohamed, Mahasen A., Piekutowska, Magdalena, Wojciechowski, Tomasz, Abd El-Salam, El-Sayed T., Fouad, Ahmed S.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
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Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9865851/
https://www.ncbi.nlm.nih.gov/pubmed/36678944
http://dx.doi.org/10.3390/plants12020232
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author Adly, Walaa M. R. M.
Niedbała, Gniewko
EL-Denary, Mohammad E.
Mohamed, Mahasen A.
Piekutowska, Magdalena
Wojciechowski, Tomasz
Abd El-Salam, El-Sayed T.
Fouad, Ahmed S.
author_facet Adly, Walaa M. R. M.
Niedbała, Gniewko
EL-Denary, Mohammad E.
Mohamed, Mahasen A.
Piekutowska, Magdalena
Wojciechowski, Tomasz
Abd El-Salam, El-Sayed T.
Fouad, Ahmed S.
author_sort Adly, Walaa M. R. M.
collection PubMed
description Starch content is one of the major quality criteria targeted by potato breeding programs. Traditional potato breeding is a laborious duty due to the tetraploid nature and immense heterozygosity of potato genomes. In addition, screening for functional genetic variations in wild relatives is slow and strenuous. Moreover, genetic diversity, which is the raw material for breeding programs, is limited due to vegetative propagation used in the potato industry. Somaclonal variation provides a time-efficient tool to breeders for obtaining genetic variability, which is essential for breeding programs, at a reasonable cost and independent of sophisticated technology. The present investigation aimed to create potato somaclones with an improved potential for starch accumulation. Based on the weight and starch content of tubers, the somaclonal variant Ros 119, among 105 callus-sourced clones, recorded a higher tuberization potential than the parent cv Lady Rosetta in a field experiment. Although this somaclone was similar to the parent in the number of tubers produced, it exhibited tubers with 42 and 61% higher fresh and dry weights, respectively. Additionally, this clone recorded 10 and 75% increases in starch content based on the dry weight and average content per plant, respectively. The enhanced starch accumulation was associated with the upregulation of six starch-synthesis-related genes, namely, the AGPase, GBSS I, SBE I, SBE II, SS II and SS III genes. AGPase affords the glycosyl moieties required for the synthesis of amylose and amylopectin. GBSS is required for amylose elongation, while SBE I, SBE II, SS II and SS III are responsible for amylopectin.
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spelling pubmed-98658512023-01-22 Somaclonal Variation for Genetic Improvement of Starch Accumulation in Potato (Solanum tuberosum) Tubers Adly, Walaa M. R. M. Niedbała, Gniewko EL-Denary, Mohammad E. Mohamed, Mahasen A. Piekutowska, Magdalena Wojciechowski, Tomasz Abd El-Salam, El-Sayed T. Fouad, Ahmed S. Plants (Basel) Article Starch content is one of the major quality criteria targeted by potato breeding programs. Traditional potato breeding is a laborious duty due to the tetraploid nature and immense heterozygosity of potato genomes. In addition, screening for functional genetic variations in wild relatives is slow and strenuous. Moreover, genetic diversity, which is the raw material for breeding programs, is limited due to vegetative propagation used in the potato industry. Somaclonal variation provides a time-efficient tool to breeders for obtaining genetic variability, which is essential for breeding programs, at a reasonable cost and independent of sophisticated technology. The present investigation aimed to create potato somaclones with an improved potential for starch accumulation. Based on the weight and starch content of tubers, the somaclonal variant Ros 119, among 105 callus-sourced clones, recorded a higher tuberization potential than the parent cv Lady Rosetta in a field experiment. Although this somaclone was similar to the parent in the number of tubers produced, it exhibited tubers with 42 and 61% higher fresh and dry weights, respectively. Additionally, this clone recorded 10 and 75% increases in starch content based on the dry weight and average content per plant, respectively. The enhanced starch accumulation was associated with the upregulation of six starch-synthesis-related genes, namely, the AGPase, GBSS I, SBE I, SBE II, SS II and SS III genes. AGPase affords the glycosyl moieties required for the synthesis of amylose and amylopectin. GBSS is required for amylose elongation, while SBE I, SBE II, SS II and SS III are responsible for amylopectin. MDPI 2023-01-04 /pmc/articles/PMC9865851/ /pubmed/36678944 http://dx.doi.org/10.3390/plants12020232 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Adly, Walaa M. R. M.
Niedbała, Gniewko
EL-Denary, Mohammad E.
Mohamed, Mahasen A.
Piekutowska, Magdalena
Wojciechowski, Tomasz
Abd El-Salam, El-Sayed T.
Fouad, Ahmed S.
Somaclonal Variation for Genetic Improvement of Starch Accumulation in Potato (Solanum tuberosum) Tubers
title Somaclonal Variation for Genetic Improvement of Starch Accumulation in Potato (Solanum tuberosum) Tubers
title_full Somaclonal Variation for Genetic Improvement of Starch Accumulation in Potato (Solanum tuberosum) Tubers
title_fullStr Somaclonal Variation for Genetic Improvement of Starch Accumulation in Potato (Solanum tuberosum) Tubers
title_full_unstemmed Somaclonal Variation for Genetic Improvement of Starch Accumulation in Potato (Solanum tuberosum) Tubers
title_short Somaclonal Variation for Genetic Improvement of Starch Accumulation in Potato (Solanum tuberosum) Tubers
title_sort somaclonal variation for genetic improvement of starch accumulation in potato (solanum tuberosum) tubers
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9865851/
https://www.ncbi.nlm.nih.gov/pubmed/36678944
http://dx.doi.org/10.3390/plants12020232
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