Divergent receptor proteins confer responses to different karrikins in two ephemeral weeds

Karrikins are germination stimulants perceived by KAI2 in Arabidopsis. Here the authors show that Brassica tournefortii, a close relative to Arabidopsis, has multiple copies of KAI2 with amino acid substitutions that confer responsiveness to the specific karrikin compounds found in wildfire smoke.

Bibliographic Details
Main Authors: Yueming Kelly Sun, Jiaren Yao, Adrian Scaffidi, Kim T. Melville, Sabrina F. Davies, Charles S. Bond, Steven M. Smith, Gavin R. Flematti, Mark T. Waters
Format: Article
Language:English
Published: Nature Publishing Group 2020-03-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-020-14991-w