Evolution of strigolactone receptors by gradual neo-functionalization of KAI2 paralogues.
Rohan Bythell-DouglasCarl J RothfelsDennis W D StevensonSean W GrahamGane Ka-Shu WongDavid C NelsonTom BennettPublished in: BMC biology (2017)
Our results suggest that D14-like structure is not required for SL perception, and that SL perception has relatively relaxed structural requirements compared to KAI2-mediated signalling. We suggest that SL perception gradually evolved by neo-functionalization within the DDK lineage, and that the transition from KAI2-like to D14-like protein may have been driven by interactions with protein partners, rather than being required for SL perception per se.