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SUMMARY:Numerous inputs contribute to the genetic regulation of tomato fru
 it ripening - Jim Giovannoni\, Boyce Thompson Institute
DTSTART:20191121T130000Z
DTEND:20191121T140000Z
UID:TALK131557@talks.cam.ac.uk
CONTACT:85030
DESCRIPTION:USDA-ARS Robert W. Holley Center and Boyce Thompson Institute 
 for Plant Research\, Tower Road\, Cornell University.  Ithaca\, NY  14853 
 USA\n\nFleshy fruit undergo a complex set of changes in physiology and che
 mistry to become attractive and palatable to frugivores that consume them 
 and disperse the seeds contained within.  Tomato is a model for ripening w
 here plant hormones\, transcription factors and changes in the epigenome a
 ll contribute to ripening control.   Natural mutations\, transgenic repres
 sion/over-expression and gene editing mutants have all given insights into
  the functions and roles of ripening regulators with new players continual
 ly being added to the symphony of participants coordinating the manifestat
 ion of ripening phenomena.   As fruit do not ripen uniformly\, we have rec
 ently deployed tissue-specific gene expression profiling to explore more d
 eeply the ripening regulome in an effort to reveal additional regulators a
 nd where they operate.  Resulting gene expression data is freely available
  through the Tomato Expression Atlas (TEA) at tea.solgenomics.net.  We hav
 e used this data in part to develop and support our hypothesis that key ri
 pening events initiate in the locule tissue and spread to the carpel tissu
 e.  A number of new ripening-associated transcription factors consistent w
 ith this profile have been identified and reveal functions consistent with
  this ripening pattern.  Some influence ripening at the level of specific 
 ripening processes such as softening while others exert broader ripening c
 ontrol.  Identification of the players in ripening regulation is requisite
  to developing a more complete picture of its basic regulatory machinery a
 nd to begin understanding how ripening regulators interact.\n
LOCATION:Department of Plant Sciences\, Large Lecture Theatre
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