Annals of BotanyNews in Brief Genome size variation in the Hesperis clade was shaped by proliferation of DNA repeats Most crucifer species (Brassicaceae) have small nuclear genomes (mean 1C-value 617 Mb). The species with the largest genomes occur within the monophyletic Hesperis clade (Mandáková et al.; also known as Clade E or... Alex AssiryAugust 10, 2019