Supplementary Figure 1.
MSA of solanaceous Peps and AtPep1, AtPep2, and AtPep3. Residues which are identical in 7 of the 9 sequences are highlighted in gray. The consensus line at the bottom shows “*” for each position in the alignment that is identical in every sequence, and “.” for each position that is identical in 9 or more of the sequences. The “^” symbol indicates positions at which chemical properties of residues are similar (R/K and I/V). The MSA has a total of 25 positions.

Capsicum annuum    ATGRRRGR-PPSRPGVGRGPPPENN
C. baccata    	 ATSRRRGR-PPSRPGVGRGPPPENN
C. chinensis    	 ATGRRRGR-SPSRPGVGRGPPPENN
Nicotiana          AT--RRGRTPP-RPGVSRGSPPQNN
Petunia            ATG-RRGRTPP-KSGISQGSPPQHN
Potato group       ATE-RRGR-PPSRPKVGSGPPPQNN
Tomato group       ATD-RRGR-PPSRPKVGSGPPPQNN
S. chilense Pep b  ATD-RRGR-PPSRPKVVSGPPPQNN
S. melongena	 ATR-RRGR-PPPKPPIGSGSPPQNN	 ATR-RRGR-PPPKPP-IGS-GSPPQ-N---N
AtPep1		 ATK-VKAK-QRGKEKVSSGRPGQHN
AtPep2		 DNK-AKSK-KRDKEKPSSGRPGQTNSVPNAAIQVYKED
AtPep3		 EIK-ARGK-NKTKPTPSSGKGGKHN

consensus          .    ^ ^    ^     * .   *