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SUMMARY:The moss sporophyte: A starting point for the evolution of plant a
 rchitecture  - Yoan Coudert\, Evolution of Plant Body Plans
DTSTART:20121116T130000Z
DTEND:20121116T133000Z
UID:TALK40559@talks.cam.ac.uk
CONTACT:24938
DESCRIPTION:Although land plants sustain life on earth\, and their product
 ivity is limited by architecture\, we have little understanding of how cha
 nges in architecture came about during evolution. In the majority of extan
 t land plants\, the vascular plants\, the diploid sporophyte generation is
  dominant and architectural diversity is generated by differences in branc
 h and leaf initiation patterns. Despite this variation\, all vascular plan
 ts have a capacity for indeterminate growth from meristems located at the 
 tips of their growing branches. An evolutionary starting point for sporoph
 yte architecture is given by the bryophytes that are basal in plant phylog
 enies. In mosses\, the main group of bryophytes\, the sporophyte has a det
 erminate body plan: a single stem that terminates in the formation of a re
 productive structure\, the sporangium. By using the moss Physcomitrella pa
 tens as a model and a combination of approaches\, I aim to determine wheth
 er there are regulatory mechanisms of sporophyte meristem function shared 
 across the land plants and to identify pathways by which indeterminate gro
 wth may have arisen.
LOCATION:Department of Plant Sciences\, Large Lecture Theatre
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