Potato Physiology, Genetics and Breeding

A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Crop Physiology and Crop Production".

Deadline for manuscript submissions: closed (31 December 2024) | Viewed by 2427

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Department of Plant Physiology, Institute for Biological Research “Siniša Stanković”—National Institute of the Republic of Serbia, University of Belgrade, 11060 Belgrade, Serbia
Interests: physiological, biochemical and molecular mechanisms of plant responses to abiotic stress; stress-protective proteins; antioxidant enzymes; priming for abiotic stress tolerance; plant biotechnology
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Dear Colleagues,

Potato, Solanum tuberosum L., is the leading vegetable crop in the world, and produces more food per unit of production area than any cereal crop. It has been recommended by the Food and Agriculture Organization of the United Nations as a food security crop for the future; however, the genetic complexity of commercial potato cultivars represents a problem for breeders in selecting genotypes with multiple desirable traits, such as high yield potential, resistance to pathogens, and abiotic stress. In addition, the genetic base for biotic and abiotic stress tolerance in cultivated potato is narrow. Advances in understanding potato physiology, genetics, and the omics approach can greatly help conventional and molecular breeding create more productive and stress-tolerant genotypes. Moreover, desirable traits can be found in landraces and wild relatives of potatoes, and significant effort has been made to identify and utilize genes/alleles from this source. This Special Issue of Plants aims to provide an overview of current research and knowledge regarding potato physiology, as well as genetics, genomic research, and achievements in conventional and molecular breeding in creating new genotypes. Submissions of original research articles, reviews, minireviews, and short communications are welcome.

Dr. Ivana Momčilović
Guest Editor

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Keywords

  • Solanum tuberosum
  • photosynthesis
  • photoassimilate partitioning
  • tuberization
  • stress tolerance
  • marker-assisted selection
  • germplasm
  • potato breeding
  • potato biotechnology

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Published Papers (1 paper)

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Research

25 pages, 12175 KiB  
Article
Analysis of Stress Response Genes in Microtuberization of Potato Solanum tuberosum L.: Contributions to Osmotic and Combined Abiotic Stress Tolerance
by Lisset Herrera-Isidron, Braulio Uribe-Lopez, Aaron Barraza, José Luis Cabrera-Ponce and Eliana Valencia-Lozano
Plants 2024, 13(21), 2996; https://doi.org/10.3390/plants13212996 - 26 Oct 2024
Viewed by 1869
Abstract
Wild Solanum species have contributed many introgressed genes during domestication into current cultivated potatoes, enhancing their biotic and abiotic stress resistance and facilitating global expansion. Abiotic stress negatively impacts potato physiology and productivity. Understanding the molecular mechanisms regulating tuber development may help solve [...] Read more.
Wild Solanum species have contributed many introgressed genes during domestication into current cultivated potatoes, enhancing their biotic and abiotic stress resistance and facilitating global expansion. Abiotic stress negatively impacts potato physiology and productivity. Understanding the molecular mechanisms regulating tuber development may help solve this global problem. We made a transcriptomic analysis of potato microtuberization under darkness, cytokinins, and osmotic stress conditions. A protein–protein interaction (PPI) network analysis identified 404 genes with high confidence. These genes were involved in important processes like oxidative stress, carbon metabolism, sterol biosynthesis, starch and sucrose metabolism, fatty acid biosynthesis, and nucleosome assembly. From this network, we selected nine ancestral genes along with eight additional stress-related genes. We used qPCR to analyze the expression of the selected genes under osmotic, heat–osmotic, cold–osmotic, salt–osmotic, and combined-stress conditions. The principal component analysis (PCA) revealed that 60.61% of the genes analyzed were associated with osmotic, cold–osmotic, and heat–osmotic stress. Seven out of ten introgression/domestication genes showed the highest variance in the analysis. The genes H3.2 and GAPCP1 were involved in osmotic, cold–osmotic, and heat–osmotic stress. Under combined-all stress, TPI and RPL4 were significant, while in salt–osmotic stress conditions, ENO1, HSP70-8, and PER were significant. This indicates the importance of ancestral genes for potato survival during evolution. The targeted manipulation of these genes could improve combined-stress tolerance in potatoes, providing a genetic basis for enhancing crop resilience. Full article
(This article belongs to the Special Issue Potato Physiology, Genetics and Breeding)
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