Unicellular to multicellular: What can the green alga Volvox tell us about the evolution of multicellularity and cellular differentiation?

Despite being 2mm in diameter and only having 2 cell types, green alga Volvox have fascinated biologists for over 300 years and are a model organism for developmental, physiological and evolutionary research. Published today in BMC Biology new research analyzes the whole transcriptome of Volvox carteri by RNA sequencing. Here, lead author of the study, Armin Hallmann, explains how this impacts our understanding of evolution from unicellular to multicellular organisms.