Michael Freeling

Variations in Homoeologous Dosage and Epigenomics Mark the Early Evolution of Synthetic Brassica Tetraploids

The paper examines structural and epigenomic changes in synthetic Brassica tetraploids across generations, finding frequent deletions/duplications and methylation dynamics affecting gene expression and phenotypes.

The contributions from the progenitor genomes of the mesopolyploid Brassiceae are evolutionarily distinct but functionally compatible

The paper confirms a two-step hybridization model for the formation of hexaploidy in Brassiceae and shows subgenomes have distinct loss rates but functionally compatible genes.

Evolution of conserved noncoding sequences in Arabidopsis thaliana

The paper characterizes species-level variation in conserved noncoding sequences (CNS) across Arabidopsis thaliana accessions and finds non-random diversity in CNS with shared variants across accessions.