P11 17nt match
-0.6
-0.4
-0.2
0.0
0.2
0.4
0.6
0.8
1.0
Choice Inde
x
P0 vhp-1(sa366)
**** ****
n.s.
N2 vhp-1(sa366)
-0.8
-0.6
-0.4
-0.2
0.0
0.2
0.4
0.6
0.8
1.0
Choice Index
P0 vhp-1(sa366)
**** *
N2 vhp-1(sa366)
n.s.
-0.4
-0.2
0.0
0.2
0.4
0.6
0.8
-0.6
Choice Index
F1 vhp-1(sa366)
**** ***
n.s.
N2 vhp-1(sa366)
n.s.
a
0.0
0.2
0.4
0.6
Mean di
fference
PAOP50 plate14 plate -
N2vhp-1
0.0
0.2
0.4
0.6
Mean di
fference
OP50 sRNAPAN214 sRNAvhp-1 -
0.0
0.2
0.4
0.6
Mean di
fference
PAOP50 plateN214 plate -vhp-1
n.s.
n.s.
-0.4
-0.2
0.0
0.2
0.4
0.6
0.8
Choice Index
** n.s.
**
F1maco-1(ok3165)
N2 maco-1(ok3165)
n.s.
−0.4
−0.2
0.0
0.2
0.4
0.6
Mean di
fference
P11 sRNA
metabolites
innate immunity
Control
non-pathogenic
food
(pyochelin/PCN)
(pmk-1 dependent,
pmk-1 independent/irg-1)
maco-1
inactive pathway
food
Wild-type worms on OP50
PA14
attraction
Pseudomonas
exposure
active pathway
active pathway
Wild-type worms on PA14
PA14
avoidance
Control
non-pathogenic
food
active pathway
inactive pathway
food
maco-1 mutants on OP5 0
maco-1 mutants on PA 14
Pseudomonas
exposure
active pathway
active pathway
PA14
avoidance
inactive pathway
PA14
avoidance
P0 24 h OP50 small RNA P0 24 h PA14 small RNA 24 h OP50 bacteria lawn 24 h PA14 bacteria lawn
24 h OP50 small RNA 24 h PA14 small RNA P0 24 h OP50 bacteria lawn P0 24 h PA14 bacteria lawn
b
c d e
fg h
PA14 sRNA -
OP50 sRNA
N2maco-1
P11 sRNA
metabolites
(pyochelin/PCN)
maco-1
P11 sRNA
metabolites
innate immunity
(pyochelin/PCN)
(pmk-1 dependent,
pmk-1 independent/irg-1)
maco-1
innate immunity(pmk-1 dependent,
pmk-1 independent/irg-1)
P11 sRNA
metabolites
innate immunity
(pyochelin/PCN)
(pmk-1 dependent,
pmk-1 independent/irg-1)
maco-1
OP50
lawn
PA 14
lawn
0
1000
2000
3000
4000
5000
P0
normalized count
s
padj = 1. 13 x 10 -^26
F1
vhp-1 expression
OP50
lawn
PA 14
lawn
0
1000
2000
3000
4000
5000
normalized count
s
padj = 0. 16
-0.8
-0.6
-0.4
-0.2
0.0
0.2
0.4
0.6
0.8
Choice Index
N2 maco-1(ok3165)
* n.s.
***
F1maco-1(ok3165)
n.s.
−0.2
0.0
0.2
0.4
0.6
Mean di
fference
P0 24 h OP50 bacteria lawn P0 24 h PA14 bacteria lawn
OP50 platePAN214 plate maco-1-
ASI daf-7p::GFP
ASJ daf-7p::GFP
daf-7
independent
ASI daf-7p::GFP
ASJ daf-7p::GFP
daf-7
independent
ASI daf-7p::GFP
ASJ daf-7p::GFP
daf-7
independent
ASI daf-7p::GFP
ASJ daf-7p::GFP
daf-7
independent
Extended Data Fig. 7 | See next page for caption.