Quantitative changes in DNA methylation induced by monochromatic light in barley regenerants obtained by androgenesis

Patrycja Siedlarz


Department of Plant Biochemistry and Physiology, Plannt Breeding and Acclimatization Institute - National Research Institute, 05-870 Radzików, Poland (Poland)
https://orcid.org/0000-0001-5986-7790

Sławomir Bany


Department of Plant Biochemistry and Physiology, Plannt Breeding and Acclimatization Institute - National Research Institute, 05-870 Radzików, Poland (Poland)

Krystyna Rybka

k.rybka@ihar.edu.pl
Department of Plant Biochemistry and Physiology, Plannt Breeding and Acclimatization Institute - National Research Institute, 05-870 Radzików, Poland (Poland)
https://orcid.org/0000-0002-4707-8492

Abstract

Changes in DNA methylation are one of the best known mechanisms of epigenetic regulation of gene expression, which  in the process of induced androgenesis is associated with reprogramming of haploid microspores development towards  the formation of embryos, as a result of exposure of anthers in ears and then anthers culture in vitro to stress factors.  The aim of the study was to test the hypothesis of whether the use of monochromatic light during induced androgenesis might be associated with epigenetic phenomena. The experiments were carried out on DH plants of spring barley (Hordeum vulgare L.) obtained by androgenesis modified by monochromatic light: blue, green and red. A quantitative evaluation of the effect of light on the degree of DNA methylation was performed using RP-HPLC for the comparison of regenerants obtained under standard, control conditions (darkness) with those obtained with light usage. The differences in the amount of methylated cytidine in comparison to the control were: 0.40%, 0.16% and -0.55%, for blue, red and green light, respectively. The level of global genomic DNA methylation from control plants was in the range 21.32-21.52%. Methylation changes in response to monochromatic light used during callus formation in anthers culture, determined by RP-HPLC, are significant although small.

Supporting Agencies

Barley regenerants were obtained within the framework of the NCBiR-PBS3/B8/19/2015 grant financed by the National Center for Research and Development (Poland). Quantitative determinations of DNA methylation were carried out as part of the IHAR-PIB internal grant for young scientists DS-18‒4012/2018.

Keywords:

RP-HPLC, Hordeum vulgare L., LED, cytidine

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Published
2020-04-30

Cited by

Siedlarz, P., Bany, S. and Rybka, K. (2020) “Quantitative changes in DNA methylation induced by monochromatic light in barley regenerants obtained by androgenesis”, Bulletin of Plant Breeding and Acclimatization Institute, (288), pp. 47–51. doi: 10.37317/biul-2020-0005.

Authors

Patrycja Siedlarz 

Department of Plant Biochemistry and Physiology, Plannt Breeding and Acclimatization Institute - National Research Institute, 05-870 Radzików, Poland Poland
https://orcid.org/0000-0001-5986-7790

Authors

Sławomir Bany 

Department of Plant Biochemistry and Physiology, Plannt Breeding and Acclimatization Institute - National Research Institute, 05-870 Radzików, Poland Poland

Authors

Krystyna Rybka 
k.rybka@ihar.edu.pl
Department of Plant Biochemistry and Physiology, Plannt Breeding and Acclimatization Institute - National Research Institute, 05-870 Radzików, Poland Poland
https://orcid.org/0000-0002-4707-8492

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