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UID:857@i2m.univ-amu.fr
DTSTART;TZID=Europe/Paris:20150923T140000
DTEND;TZID=Europe/Paris:20150923T150000
DTSTAMP:20150908T120000Z
URL:https://www.i2m.univ-amu.fr/evenements/roadmap-to-study-convergent-evo
 lution-a-proposition-for-evolutionary-system-biology-approaches/
SUMMARY: (...): Roadmap to study convergent evolution\, a proposition for e
 volutionary system biology approaches
DESCRIPTION:: Most of the authors studying convergent evolution think about
  the apparition of similar phenotype in two evolutionary independent linea
 ges. (Conway Morris 2003 \, McGee 2011\, Losos 2011 \, Gordon et al 2015).
  From this broad definition the authors focus in they case studies : echol
 ocation (Parker et al 2013) or the repetitive adaptations of marine mammal
 s (Foote et la 2015). One of The goal of my presentation is to show that t
 hese cases of “repetitive similarities” should be defined in a better 
 way. Lot of tries have been done since the 20th century\, but these add mo
 re confusions (Arendt and Reznick 2008). From ours point of view the confu
 sion came from the fact that most of the authors gave sub definitions base
 d on the genetic mechanisms involved in the evolution of the convergent ev
 olving character. We propose two neologims that can be apply to all the bi
 ological level : isoconvergent and alloconvergent evolution Iso from the s
 ame ancestral state allo from a different ancestral state . This distincti
 on is important as in the case iso convergent evolution \, one can suspect
  that the underlying molecular mechanism could be similar(Stern and Orgozo
 zo 2008) . Such cases could be used as meta-model (Kopp 2009) that in turn
  can be used to decipher biological mechanisms at genetic\, epigenetic\, t
 ranscriptional level and other biological levels. We propose 1) to reanaly
 se all the case of convergent evolutions at phenotypic level decribed in t
 he litterature and sort out the case of isoconvergences\,2) A strategy to 
 identify undescribed cases of iso convergent evolution and 3) a road map t
 o study thes cases at the different biological level and 4) the developmen
 t of a data base. (joint work with Justine Dardaillon and Laurent Tichit\,
  I2M)Webpage
CATEGORIES:Séminaire,Mathématiques-Évolution-Biologie
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