The improvement of the in vitro plant regeneration in barley with the epigenetic modifier of histone acetylation, trichostatin A.

Autor: Nowak K; Faculty of Natural Sciences, Institute of Biology, Biotechnology and Environmental Protection, University of Silesia, 40-007, Katowice, Poland. katarzyna.nowak@us.edu.pl., Wójcikowska B; Faculty of Natural Sciences, Institute of Biology, Biotechnology and Environmental Protection, University of Silesia, 40-007, Katowice, Poland., Gajecka M; Faculty of Natural Sciences, Institute of Biology, Biotechnology and Environmental Protection, University of Silesia, 40-007, Katowice, Poland., Elżbieciak A; Faculty of Natural Sciences, Institute of Biology, Biotechnology and Environmental Protection, University of Silesia, 40-007, Katowice, Poland., Morończyk J; Faculty of Natural Sciences, Institute of Biology, Biotechnology and Environmental Protection, University of Silesia, 40-007, Katowice, Poland., Wójcik AM; Faculty of Natural Sciences, Institute of Biology, Biotechnology and Environmental Protection, University of Silesia, 40-007, Katowice, Poland., Żemła P; Faculty of Natural Sciences, Institute of Biology, Biotechnology and Environmental Protection, University of Silesia, 40-007, Katowice, Poland.; Toxicology Research Group, Łukasiewicz Research Network, Institute of Industrial Organic Chemistry Branch Pszczyna, Doświadczalna 27, 43-200, Pszczyna, Poland., Citerne S; Institut Jean-Pierre Bourgin (IJPB), INRAE, AgroParisTech, Université Paris-Saclay, 78000, Versailles, France., Kiwior-Wesołowska A; Faculty of Natural Sciences, Institute of Biology, Biotechnology and Environmental Protection, University of Silesia, 40-007, Katowice, Poland., Zbieszczyk J; Faculty of Natural Sciences, Institute of Biology, Biotechnology and Environmental Protection, University of Silesia, 40-007, Katowice, Poland., Gaj MD; Faculty of Natural Sciences, Institute of Biology, Biotechnology and Environmental Protection, University of Silesia, 40-007, Katowice, Poland.
Jazyk: angličtina
Zdroj: Journal of applied genetics [J Appl Genet] 2024 Feb; Vol. 65 (1), pp. 13-30. Date of Electronic Publication: 2023 Nov 14.
DOI: 10.1007/s13353-023-00800-9
Abstrakt: Genotype-limited plant regeneration is one of the main obstacles to the broader use of genetic transformation in barley breeding. Thus, developing new approaches that might improve responses of in vitro recalcitrant genotypes remains at the center of barley biotechnology. Here, we analyzed different barley genotypes, including "Golden Promise," a genotype commonly used in the genetic transformation, and four malting barley cultivars of poor regenerative potential. The expression of hormone-related transcription factor (TF) genes with documented roles in plant regeneration was analyzed in genotypes with various plant-regenerating capacities. The results indicated differential expression of auxin-related TF genes between the barley genotypes in both the explants and the derived cultures. In support of the role of auxin in barley regeneration, distinct differences in the accumulation of free and oxidized auxin were observed in explants and explant-derived callus cultures of barley genotypes. Following the assumption that modifying gene expression might improve plant regeneration in barley, we treated the barley explants with trichostatin A (TSA), which affects histone acetylation. The effects of TSA were genotype-dependent as TSA treatment improved plant regeneration in two barley cultivars. TSA-induced changes in plant regeneration were associated with the increased expression of auxin biosynthesis-involved TFs. The study demonstrated that explant treatment with chromatin modifiers such as TSA might provide a new and effective epigenetic approach to improving plant regeneration in recalcitrant barley genotypes.
(© 2023. The Author(s).)
Databáze: MEDLINE
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