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UID:995@i2m.univ-amu.fr
DTSTART;TZID=Europe/Paris:20151216T110000
DTEND;TZID=Europe/Paris:20151216T120000
DTSTAMP:20151201T100000Z
URL:https://www.i2m.univ-amu.fr/evenements/road-map-to-study-convergent-ev
 olution-a-proposition-for-evolutionary-system-biology-approaches/
SUMMARY: (...): Road Map to study Convergent Evolution a proposition for ev
 olutionary system biology approaches
DESCRIPTION:: Every evolutionary biologist will say that Convergent evoluti
 on is an important phenomenon of the organic evolution( Conway Morris 2003
  \, McGee 2011\, Losos 2011 \, Gordon et al 2015 ). However this concept i
 s fuzzy as convergent evolution have several meaning in the literature \, 
 this has been described in part by Tristan Stayton (2015). The goal of thi
 s presentation is 1) to show that these cases of “repetitive similaritie
 s” should be defined in a better way and 2) to present a road map to stu
 dy these phenomenons once they are better defined.Lot of tries have been d
 one to better describe convergent evolution since the 20th century\, This 
 was done mainly by separating the concept in two sub concepts \, parallel 
 and convergent evolution but these add more confusions (Arendt and Reznick
  2008) . From ours point of view the confusion came from the fact that mos
 t of the authors gave sub definitions based on the genetic mechanisms invo
 lved in the evolution of the convergent evolving character. We first propo
 se to make the distinction between convergence at the level of species and
  the level of characters . We there propose two neologisms that can be app
 ly to all the biological levels: isoconvergent and alloconvergent evolutio
 n : iso from the same ancestral state allo from a different ancestral stat
 e . This distinction is important as in the case iso convergent evolution 
 \, one can suspect that the underlying molecular mechanism could be simila
 r(Stern and Orgozozo 2008) .Such cases could be used as meta-model (Kopp 2
 009)\, that in turn can be used to decipher biological mechanisms at genet
 ic\, epigenetic\, transcriptional and other biological levels. We further 
 propose 1) to re analyse all the case of convergent evolution at phenotype
  level described in the literature and sort out the case of isoconvergence
 s\,2) to identify undescribed cases of iso convergent evolution and 3) a r
 oad map to study these cases at the different biological level and 4) the 
 development of a data base. The usefulness of the analyse of the case of a
 lloconvergent evolution will be also discussedI will present \, in this ep
 istemological contexts \, the first cases studied in the lab: the b lacata
 mase as weel as or project on the evolution of complex viviparityWebpage
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