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TZID:Europe/Vienna
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DTSTART:20180325T030000
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
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DTSTART:20171029T020000
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BEGIN:VEVENT
DTSTAMP:20260424T085453Z
UID:1513004400@ist.ac.at
DTSTART:20171211T160000
DTEND:20171211T170000
DESCRIPTION:Speaker: Alexey Kondrashov\nhosted by Fyodor Kondrashov\nAbstra
 ct: Natural selection is differential propagation of individuals\; however
 \, it affects all levels of organization. In particular\, data on sequence
 s make it possible to study esoteric properties of selection. I will descr
 ibe several results of this kind. Very short internal branches in the phyl
 ogenetic trees of the lake Baikal amphipods made it possible to detect sho
 rt bursts of amino acid substitutions\, shedding new light on the graduali
 sm-punctualism debate. Independent adaptation of many three-spine stickleb
 acks to fresh-water lakes in the basin of the White Sea revealed interesti
 ng patterns in parallel evolution. Comparison of the strengths of negative
  selection across many species demonstrated that the lives of a cod and of
  an elephants are equally tough. Rates of evolution of loss-of-function al
 leles of genes confirmed that these alleles are dead. Uniform distribution
  of deleterious alleles along genotypes may be a useful signature of narro
 wing epistasis. Finally\, I will tell you what bdelloid rotifers do instea
 d of sex.
LOCATION:Raiffeisen Lecture Hall\, Central Building\, ISTA
ORGANIZER:kzaruba@ist.ac.at
SUMMARY:Alexey Kondrashov: Studying natural selection at the level of genot
 ypes
URL:https://talks-calendar.ista.ac.at/events/933
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