“…In the plant model Arabidopsis , the CrRLK1L subfamily contains 17 members, many of which have been characterized, e.g., THESEUS1 (THE1), HERCULES1 (HERK1), HERCULES2 (HERK2), FERONIA/SIRENE (FER/SIR), ANXUR1 (ANX1), ANXUR2 (ANX2), etc. and among these characterized members, FER and THE have attracted particular interest, owing to their special roles in CWI signaling [ 14 , 132 , 133 ]. CrRLK1Ls have been reviewed many times [ 7 , 10 , 14 , 15 , 23 ].…”