Biased fractionation

Biased fractionation between syntenic regions in the genome of Arabidopsis thaliana derived from its most recent whole genome duplication event. Results may be regenerated http://genomevolution.org/r/4s9n

Biased fractionation: the process of fractionation of gene content following whole genome duplications where one homeologous chromosome is targeted for more gene loss events than the partner chromosome(s).

Please see these papers:

• Following tetraploidy in an Arabidopsis ancestor, genes were removed preferentially from one homeolog leaving clusters enriched in dose-sensitive genes
• Differentiation of the maize subgenomes by genome dominance and both ancient and ongoing gene loss
• A model for biased fractionation after whole genome duplication
• The genome of the mesopolyploid crop species Brassica rapa