Genome studies and molecular genetics.

摘要

This editorial provides an overview of the consequences of gene and genome duplication in plants, including a brief discussion on the review papers presented in this issue that covers topics on: the evolutionary dynamics of plant duplicate genes; evolving disease resistance genes; polyploidy and genome evolution in plant; Arabidopsis epigenetics (when RNA meets chromatin); advances in plant chromosome identification and cytogenetic techniques; and updating the 'Crop Circle', which visualizes the chromosomal features that unify the grasses and serves to facilitate their study as a single genetic system.