19 Epigenomics Plants BIOL 51906190 Cellular amp Molecular Singal Transduction Prepared by Bob Locy Last modified 13F Epigenetics Stable but expressionrelated changes in gene function ID: 275825
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Slide1
Lecture 19 – Epigenomics – Plants
BIOL 5190/6190 Cellular & Molecular
Singal
Transduction
Prepared by Bob Locy
Last modified -13FSlide2
Epigenetics – Stable, but expression-related changes in gene functionMethylation of DNA & Histones is involved in epigenetic transcriptional regulationCorrelation between DNA methylation and histone modification
Correlation between gene expression changes and DNA Methylation
Transposable elements are regulated by DNA Methylation
Correlation between DNA Methylation and TE transposition
How is DNA methylation mediated?
Enzymology known
Transposable elements part of repeat-associated/heterochromatic DNA in the genome
Repeat associated DNA methylation controls “
transposase
” function that mediates transposition, and thus, epigenetic “inheritance”Slide3
Plant Biotic and Abiotic Stress ResponsesOld time workEpigenetic stuffState of the ArtSlide4
Epigenetic Regulation of Transcription and Transposition
Bucher et al., (2012) Current Opinion in Plant Biology 15 (5): 503-510Slide5
Stress Regulated
Epigenenic
Gene Regulation
Cell
Signalling
Biology - Michael J.
Berridge
- www.cellsignallingbiology.org - 2012 Slide6
Proposed model for Epigenetic Control of TE-host
coevolution
Bucher et al., (2012) Current Opinion in Plant Biology 15 (5): 503-510Slide7
Transducers Second Messengers I
J.R., and
Pikaard
, C.S. 2011. Nature Reviews Molecular Cell Biology 12:483–492.Slide8
CSB Fig 02:01 Cell
signalling
pathways
J.R., and
Pikaard
, C.S. 2011. Nature Reviews Molecular Cell Biology 12:483–492.