Supplementary Information 1. Genotypes Figure 3. Genotypes are: WT (w 1118, A, C), RSK D1 (RSK D1 /Y, B, D), RSK D1 ; da>rsk WT (RSK D1 /Y; UAS-RSK WT /+; da-gal4/+, E), e16e-gal4 (e16e-gal4/+, G), e16e>rsk WT (e16e-gal4/uas-rsk WT, H), MS1096-Gal4 (MS1096-Gal4/+, I), and MS1096>RSK WT (MS1096-Gal4/+; UAS-RSK WT /+, J). Figure 4. Genotypes are: gmr-gal4 UAS-RSK WT /+; Ras e1b /+ (A), Raf HM7 /Y; gmr-gal4 UAS-RSK WT /+ (B), dsor LH110 /+; gmr-gal4 UAS-RSK WT /+ (C), rl 10a /gmr-gal4 UAS- RSK WT (D), sev s11 /Y; sev-gal4/+ (E), sev-gal4/+; UAS-Ras V12 /+ (F), sev-gal4/+; UAS- Raf F179 /+ (G), sev-gal4/uas-erk Sem (H), sev s11 /Y; sev-gal4 UAS-RSK WT /+ (I), sev- Gal4 UAS-RSK WT /+; UAS-Ras V12 /+ (J), sev-gal4 UAS-RSK WT /+; UAS-Raf F179 /+ (K), sev-gal4 UAS-RSK WT /UAS-ERK Sem (L), Raf HM7 /Y (M), and Raf HM7 RSK D1 /Y (N). Figure 5. Genotypes of (D, E) are: sev>erk+ras V12 (sev-gal4 UAS-ERK/+; UAS- Ras V12 /+), sev>erk+ras V12 +RSK WT (sev-gal4 UAS-ERK/UAS-RSK WT ; UAS-Ras V12 /+), sev>ras V12 (sev-gal4/+; UAS-Ras V12 /+), and sev>ras V12 +RSK WT (sev-gal4/uas- RSK WT ; UAS-Ras V12 /+). Figure 6. Genotypes of (C) are: gmr-gal4 (gmr-gal4/+), gmr>erk (gmr-gal4 UAS- ERK/+), gmr>rsk WT (gmr-gal4/uas-rsk WT ), gmr>rsk KR (gmr-gal4/+; UAS- RSK KR /+), gmr>rsk WT/RA (gmr-gal4/+; UAS-RSK WT/RA /+), gmr>rsk KR/RA (gmr-gal4/+; UAS-RSK KR/RA /+), gmr>erk+rsk WT (gmr-gal4 UAS-ERK/UAS-RSK WT ), gmr>erk+rsk KR (gmr-gal4 UAS-ERK/+; UAS-RSK KR /+), gmr>erk+rsk WT/RA (gmr- 1
Gal4 UAS-ERK/+; UAS-RSK WT/RA /+), and gmr>erk+rsk KR/RA (gmr-gal4 UAS-ERK/+; UAS-RSK KR/RA /+). Genotypes of (D) are: hs-gal4 (hs-gal4/+), hs>rsk KR (hs-gal4/+; UAS-RSK KR /+), and hs>rsk WT (hs-gal4/uas-rsk WT ). Genotypes of (E) are: gmr-gal4 (gmr-gal4/+), gmr>rsk WT (gmr-gal4 UAS-RSK WT /+), gmr>rsk WT/RA (gmr-gal4/+; UAS-RSK WT/RA /+), gmr>rsk KR (gmr-gal4/+; UAS-RSK KR /+), and gmr>rsk KR/RA (gmr- Gal4/+; UAS-RSK KR/RA /+). Genotypes of (F) are: e16e-gal4 (e16e-gal4/+), e16e>rsk WT (e16e-gal4/uas-rsk WT ), e16e>rsk WT/RA (e16e-gal4/+; UAS- RSK WT/RA /+), e16e>rsk KR (e16e-gal4/+; UAS-RSK KR /+), and e16e>rsk KR/RA (e16e- Gal4/+; UAS-RSK KR/RA /+). Figure 7. Genotypes of (A-G) are: sev-gal4/+ (A), sev-gal4/+; UAS-RSK KR /+, (B) sev- Gal4/+; Ras e1b /UAS-RSK KR (C), rl 10a /sev-gal4; UAS-RSK KR /+ (D), sev-gal4/+; UAS- RSK KR /UAS-Ras V12 (E), sev-gal4/+; UAS-RSK KR /UAS-Raf F179 (F), and sev-gal4/ UAS- ERK Sem ; UAS-RSK KR /+ (G). Genotypes from left to right of (H) are: sev-gal4 UAS- ERK/+; UAS-Ras V12 /+ (first row), sev-gal4 UAS-ERK/+; UAS-RSK KR /UAS-Ras V12 (second row), sev-gal4 UAS-ERK/+; UAS-RSK WT/RA /UAS-Ras V12 (third row), and sev- Gal4 UAS-ERK/+; UAS-RSK KR/RA /UAS-Ras V12 (fourth row). Genotypes of (I) are: gmr- Gal4 rho-lacz (gmr-gal4/+; rho-lacz/+), gmr>rsk KR rho-lacz (gmr-gal4/+; UAS- RSK KR /rho-lacz), gmr>rsk WT/RA rho-lacz (gmr-gal4/+; UAS-RSK WT/RA /rho-lacz), and gmr>rsk KR/RA rho-lacz (gmr-gal4/+; UAS-RSK KR/RA /rho-lacz). Genotypes from left to right of (J) are: sev-gal4/+; UAS-Ras V12 /+ (first row), sev-gal4/+; UAS-RSK KR /UAS- Ras V12 (second row), sev-gal4/+; UAS-RSK WT/RA /UAS-Ras V12 (third row), and sev- Gal4/+; UAS-RSK KR/RA /UAS-Ras V12 (fourth row). Genotypes from left to right of upper graph of (K) are: sev-gal4 UAS-ERK/+; UAS-Ras V12 /+, sev-gal4 UAS-ERK/UAS- RSK WT ; UAS-Ras V12 /+, sev-gal4 UAS-ERK/+; UAS-RSK KR /UAS-Ras V12, sev-gal4 UAS- 2
ERK/+; UAS-RSK WT/RA /UAS-Ras V12, and sev-gal4 UAS-ERK/+; UAS-RSK KR/RA /UAS- Ras V12. Genotypes from left to right of lower graph of (K) are: sev-gal4/+; UAS- Ras V12 /+, sev-gal4/uas-rsk WT ; UAS-Ras V12 /+, sev-gal4/+; UAS-RSK KR /UAS-Ras V12, sev-gal4/+; UAS-RSK WT/RA /UAS-Ras V12, and sev-gal4/+; UAS-RSK KR/RA /UAS-Ras V12. 3
2. Supplementary Materials and methods Fertility test Male (Watnick et al, 2003) and female (Lee et al, 2003) fertility assays were conducted as previously described. Cuticle preparation of embryos For the cuticle preparation, dechorionated embryos or larvae were immersed in a solution containing acetic acid and glycerol in a 3:1 ratio and incubated for 3 hr at 65 o C. Samples were then mounted in Hoyer s medium and incubated for 24 hr at 65 o C. RT-PCR analysis Total RNA was isolated using the easy-blue TM system (Intron, Korea), and reversely transcribed into cdna with reverse transcriptase (Promega). Primer sequences used for PCR are as follow. RSK-forward RSK-reverse CG14080-forward CG14080-reverse CG7378-forward CG7378-reverse CG15528-forward CG15528-reverse CG5475-forward CG5475-reverse : 5'- TGAGGCCAGCGCGGTGTTAAG-3' : 5'- GTCATAGCCCTGTCTCTTTAGAACC-3' : 5'-ACAGCTGCGACTCGGAAGCG-3' : 5'-GTTGGCTCTCGAAGGACAGC-3' : 5'-TCGCCCAGCCGCTTGGAG-3' : 5'-GTAGGGATACAGGTTCTTGCGC-3' : 5'-ATGCCATTTGGCAGAGCCCC-3' : 5'-TCGGGGATCTCCTTGTCCAG-3' : 5'-ATGTCAGTGTCCATTACAAAAAAGTTTTACAAG-3' : 5'-AAAAACTGGACGTGGTCGTCGG-3' 4
pnt-p1-forward pnt-p1-reverse actin-forward actin-reverse : 5'-GATGTCAACTTCTTTAGTTC-3' : 5'-GCATCATAGGGCGTAAATTC-3' : 5'-CGTCTTCCCATCGATTGTG-3' : 5'-GATGCCAGGGTACATGGTG-3' 5
3. References Watnick TJ, Jin Y, Matunis E, Kernan MJ, Montell C. (2003) A flagellar polycystin-2 homolog required for male fertility in Drosophila. Curr Biol 13: 2179-2184 Lee JH, Lee E, Park J, Kim E, Kim J, Chung J. (2003) In vivo p53 function is indispensable for DNA damage-induced apoptotic signaling in Drosophila. FEBS Lett 550: 5-10 Kim M, Cha GH, Kim S, Lee JH, Park J, Koh H, Choi KY, Chung J. (2004) MKP-3 has essential roles as a negative regulator of the Ras/mitogen-activated protein kinase pathway during Drosophila development. Mol Cell Biol 24: 573-583 6