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Arthur Georges

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Lizard sex reversal

The alpine skink has XX/XY chromosomes like us, but unlike us the females can be converted to males in the egg by low temperatures. In a paper that appeared today in Heredity, Dumie Dissanayake shows that the frequency of sex reversal varies along an elevational gradient, and that the resultant sex ratio skew will potentially drive the loss of the Y chromosome at the highest elevations. Interesting stuff. https://rdcu.be/ceziZ.

Research

  • Reptile genomics and evolution
  • Sex determination in reptiles
  • Phylogenomics and phylogeography
  • Chelonian ecology, evolution, systematics
  • Applications of NextGen sequencing
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