Table S1.

FPKM values of ahr-1 and fmo-2 in young and old N2 animals grown in K12 or K12ΔtnaA and FPKM values of fmo-2 in young and old ahr-1(ia3) animals grown in K12 or K12ΔtnaA

Gene	Conditions	FPKM values
ahr-1	N2-young + K12ΔtnaA	7.1, 3.2
ahr-1	N2-young + K12	4.7, 14.3
ahr-1	N2-old + K12ΔtnaA	28.9, 33.9, 23.1
ahr-1	N2-old + K12	47, 31.3
fmo-2	N2-young + K12ΔtnaA	32.5, 25.8
fmo-2	N2-young + K12	55.65, 48.5
fmo-2	N2-old + K12ΔtnaA	505.8, 375.4, 518.5
fmo-2	N2-old + K12	413.8, 397.2
fmo-2	ahr-1(ia3)-young + K12ΔtnaA	83.5, 63.9, 74.5
fmo-2	ahr-1(ia3)-young + K12	54.9, 62.8, 83.1
fmo-2	ahr-1(ia3) + K12ΔtnaA	1,251.3, 681.5, 756.2
fmo-2	ahr-1(ia3)-old + K12	439.5, 951.5, 357.2