Amanda Penn

This study examines local adaptation in Arabidopsis thaliana across East African sky-islands, finding limited parallel adaptation and evidence of divergent selection based on climate.

The paper identifies mechanisms of local adaptation in cheatgrass invasion, showing multiple introductions and gene flow contributed to its success in North America.

This study shows sorghum plants alter their physiology in response to neighboring plants through belowground signaling via leachates, affecting growth and productivity.

This study shows that developmental timing affects genotype-environment interactions and drought adaptation in Arabidopsis, with genetic tradeoffs maintaining diversity across climates.