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SUMMARY:The immediate impacts of whole genome duplication (neopolyploidy) 
 in Spirodela polyrhiza on its functional traits and competitive outcomes.
DTSTART;VALUE=DATE-TIME:20260930T100000Z
DTEND;VALUE=DATE-TIME:20260930T101500Z
DTSTAMP;VALUE=DATE-TIME:20260916T011537Z
UID:indico-contribution-2917@cern.ch
DESCRIPTION:Speakers: Martin Turcotte (University of Pittsburgh)\nWhole ge
 nome duplication\, leading to polyploidy\, is a common macromutation throu
 ghout the tree of life and especially in plants. It can have strong impact
 s across biological scales\, from gene expression to cellular processes\, 
 to morphology and ecological dynamics. This presentation will summarize kn
 owledge gained in our labs on these impacts using *Spirodela polyrhiza* as
  a model study system. We have generated replicated neotetraploid genetic 
 lineages and report both shared and divergent changes across genetic backg
 rounds. Furthermore\, we leverage the unique advantages of this aquatic pl
 ant to test population level hypotheses advancing insights beyond most oth
 er polyploid plant study systems. For instance\, we find that polyploids g
 row more slowly in abundance and reach lower carrying capacities than thei
 r diploid progenitors. In addition\, our experimental work shows that neot
 etraploid populations are generally more resistant to urban pollutants\, b
 ut the extent depends on the pollutant type and the genetic background. Fi
 nally\, population-level competition experiments applying methods from The
  Modern Coexistence Theory have revealed how stress alters competitive out
 comes and sets the stage for more comparative work in other systems.\n\nht
 tps://indico.unina.it/event/117/contributions/2917/
LOCATION:Department of Agricultural Sciences of the University of Napoli F
 ederico II\, Portici\, Italy Sala Cinese
URL:https://indico.unina.it/event/117/contributions/2917/
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