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DTSTART:20200329T030000
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DTSTART:20191027T020000
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BEGIN:VEVENT
DTSTAMP:20260409T031827Z
UID:5def9cd83c4db327243151@ist.ac.at
DTSTART:20191216T143000
DTEND:20191216T153000
DESCRIPTION:Speaker: Félix Foutel-Rodier\nhosted by Nick Barton\nAbstract:
  During a range expansion\, deleterious mutations accumulate at the coloni
 zation front leading to a decrease in fitness known as expansion load. An 
 Allee effect is known to reduce the loss of genetic diversity of expanding
  populations\, by changing the nature of the expansion from pulled to push
 ed. I will present a new model to study the impact of an Allee effect on e
 xpansion load\, in which individuals have the genetic structure of a Mulle
 r's ratchet. Due to enhanced genetic drift the ratchet clicks rapidly at t
 he front\, leading to a fast accumulation of deleterious mutations. For la
 rge population\, I will derive analytically quantitative features of the e
 xpansion\, such as the expansion speed\, and use simulations to show that 
 the presence of an Allee effect reduces the rate at which the ratchet clic
 ks. This is joint work with Alison Etheridge.
LOCATION:Meeting room 1st floor / Central Bldg. (I01.1OG - Zentralgebäude)
 \, ISTA
ORGANIZER:abonvent@ist.ac.at
SUMMARY:Félix Foutel-Rodier: The spatial Muller's ratchet
URL:https://talks-calendar.ista.ac.at/events/2453
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