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Parental squabbles and genome expression: lessons from the polyploids

Daniela Pignatta and Luca Comai*

Author Affiliations

Plant Biology and Genome Center, University of California, 451 E. Health Sciences Drive, Davis, CA 95616, USA

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Journal of Biology 2009, 8:43  doi:10.1186/jbiol140

Published: 1 May 2009


The merger of evolutionarily diverged genomes to form a new polyploid genetic system can involve extensive remodeling of gene regulation. A recent paper in BMC Biology provides important insights into regulatory events that have affected the evolution of allopolyploid cotton.