Professor Caroline Dean - John Innes Centre, Norwich
25th June 2014 at 4:45pm [Download iCalendar / .ics file]
The study of adaptation in plants has led us into the dissection of conserved mechanisms that link antisense transcripts with chromatin dynamics. This work emerged from genetic and molecular analysis of flowering pathways that quantitatively modulate expression of the flowering repressor FLC in response to different environmental and developmental cues.
The antisense transcripts, collectively called COOLAIR, are alternatively spliced and polyadenylated, initiate in an R-loop covering the 3’ end of FLC and encompass the whole FLC sense transcription unit. The differentially processed forms of COOLAIR are associated with different FLC chromatin states via changes in recruitment of chromatin modifying complexes. The talk will describe our current understanding of these mechanisms.
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