Epigenetic variation in the callus of Brassica napus under different inducement conditions

Epigenetic variation in the callus of Brassica napus under different inducement conditions Tissue culture, a traditional technique broadly used for the genetic transformation and functional verification of target genes, induces epigenetic variations in transgenic acceptors of plants. This study compared the DNA methylation patterns during the callus formation of Brassica napus induced by different concentrations of 6-BA and 2,4-D through methylation-sensitive amplification polymorphism. The highest induction rate (85%) was observed in the hypocotyls cultured with 0.1 mg/L 2,4-D and the lowest methylation rate (25.09%) was detected in the hypocotyls cultured with 1.0 mg/L 6-BA. The methylation rates of the callus cultured with 0.2 and 0.05 mg/L 2,4-D were 29.99 and 28.31%, respectively. The callus induction rates were reduced to 79 and 80%. The methylation rates of the callus induced by 2.0 and 0.5 mg/L 6-BA were 28.17 and 33.98%, respectively. The callus induction rates were reduced to 76 and 74%. The expression analysis of methyltransferase under different induction conditions agreed with methylation modifications; therefore, the effects of hormones on callus induction may be partially indicated by methylation changes in B. napus genome. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

Epigenetic variation in the callus of Brassica napus under different inducement conditions

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Publisher
Pleiades Publishing
Copyright
Copyright © 2016 by Pleiades Publishing, Inc.
Subject
Biomedicine; Human Genetics; Animal Genetics and Genomics; Microbial Genetics and Genomics
ISSN
1022-7954
eISSN
1608-3369
D.O.I.
10.1134/S1022795416080111
Publisher site
See Article on Publisher Site

Abstract

Tissue culture, a traditional technique broadly used for the genetic transformation and functional verification of target genes, induces epigenetic variations in transgenic acceptors of plants. This study compared the DNA methylation patterns during the callus formation of Brassica napus induced by different concentrations of 6-BA and 2,4-D through methylation-sensitive amplification polymorphism. The highest induction rate (85%) was observed in the hypocotyls cultured with 0.1 mg/L 2,4-D and the lowest methylation rate (25.09%) was detected in the hypocotyls cultured with 1.0 mg/L 6-BA. The methylation rates of the callus cultured with 0.2 and 0.05 mg/L 2,4-D were 29.99 and 28.31%, respectively. The callus induction rates were reduced to 79 and 80%. The methylation rates of the callus induced by 2.0 and 0.5 mg/L 6-BA were 28.17 and 33.98%, respectively. The callus induction rates were reduced to 76 and 74%. The expression analysis of methyltransferase under different induction conditions agreed with methylation modifications; therefore, the effects of hormones on callus induction may be partially indicated by methylation changes in B. napus genome.

Journal

Russian Journal of GeneticsSpringer Journals

Published: Sep 10, 2016

References

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