
#4 THE THALE CREST PLANT – Arabidopsis thaliana
Despised as a weed, delicious in salads; this scientific superstar is both the most well-studied flowering plant in history and the most obscure organism on this list. Arabidopsis thaliana, or thale cress, has a short life, unfussy requirements and a compact genome, features that make it suitable for studying development, metabolism and disease resistance in crops. Remarkably, scientists have identified 100 Arabidopsis genes which are closely related to human disease genes. In fact, many basic cellular processes in Arabidopsis genes have counterparts in animals.