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DTSTART:20180325T030000
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DTSTAMP:20260405T232555Z
UID:5b90cf5f451b8579384901@ist.ac.at
DTSTART:20180921T150000
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DESCRIPTION:Speaker: Pavel Payne\nhosted by Gasper Tkacik\nAbstract: Unlike
  most eukaryotes\, bacteria reproduce by binary fission\, which is devoid 
 of recombination. Recombination is known to be able to speed up adaptation
  by bringing beneficial alleles arising in different individuals together.
  In a purely clonal bacterial population\, however\, the beneficial allele
 s compete with each other in a process called clonal interference. Althoug
 h bacteria lack recombination as it occurs in eukaryotes\, they can occasi
 onally exchange genetic information directly between individuals in a proc
 ess called horizontal gene transfer (HGT)\, and one of the common means of
  HGT is transduction by bacteriophages. In my presentation I am going to t
 ell you about my ongoing project\, which in turn shows that in bacterial p
 opulations recombination may be much more prevalent than previously though
 t\, hence have a strong impact on bacterial evolution.  In particular\, I 
 will show that presence of CRISPR-based herd immunity results in maintenan
 ce of CRISPR+ and CRISPR- strains in the population and allows for a conti
 nuous gene flux by transduction from the susceptible part of the populatio
 n to the resistant one. Therefore\, the CRISPR immunity can in fact enable
  recombination in bacterial populations and essentially serve as an unexpe
 cted way of how bacteria have sex.
LOCATION:Mondi Seminar Room 2\, Central Building\, ISTA
ORGANIZER:dboocock@ist.ac.at
SUMMARY:Pavel Payne: CRISPR\, herd immunity and transduction - the unexpect
 ed ways of how bacteria have sex
URL:https://talks-calendar.ista.ac.at/events/1409
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