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SUMMARY:Programmed DNA elimination in insects - Dr Laura Ross from Institu
 te of Evolutionary Biology\, The University of Edinburgh   
DTSTART:20241114T130000Z
DTEND:20241114T140000Z
UID:TALK218977@talks.cam.ac.uk
CONTACT:Caroline Newnham
DESCRIPTION:Under Mendelian inheritance\, individuals receive one set of c
 hromosomes from each of their parents\, and transmit one set of these chro
 mosomes at random to their offspring. Yet\, in thousands of animals Mendel
 's laws are broken and the transmission of maternal and paternal alleles b
 ecomes unequal. Why such non-Mendelian reproductive systems have evolved r
 epeatedly across the tree of life remains unclear. My lab studies a variet
 y of arthropod species to understand why\, when and how the transmission o
 f genes from one generation to the next deviate from Mendel’s laws. We m
 ainly focus on species with Paternal Genome Elimination: Males transmit on
 ly those chromosomes they inherited from their mother to their offspring\,
  while paternal chromosomes are excluded from sperm through meiotic drive.
  I will present recent work aimed at understanding this unusual reproducti
 ve strategy\, covering a range of topics including the evolution and mecha
 nisms of DNA elimination\, genomic imprinting\, sex determination and germ
 line-restricted chromosomes.
LOCATION:Biffen Lecture theatre and Zoom
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