Table 1. Sequences of the oligonucleotides used in this study.

Role	Sequences
Tripodna
Template 1	tgc gcc aat ggc aaa agc caa tgg cgc acg tcg tag tgc att gac agc gtc tag cta gcc aat ggc aaa agc caa tgg cta gct aga cgc tgt caa gca gac gtc gat caa gcc aat ggc aaa aaa aaa aaa aaa aaa aaa aaa aaa aaa aaa aaa aaa aaa gcc aat ggc ttg atc gac gtc tgc tat gca cta cga cg
Primer 1	ttt ttt ttt ttt ttt ttt ttt ttt t
Tetrapodna
Template 2–1	cta gac cgt gtc atg acg ctc agc tgc aag cca ctg gct tcg aaa aaa aac gaa gcc ag
Template 2–2	tgg ctt gca gct gag cgt caa gca gac gtc gat caa gcc agt ggc ttg
Primer 2	cgt cta gca agc cac tgg ct
Template 3–1	atc gac gtc tgc tgc acg tcg tag tgc aag cca gtg gct tcg aaa aaa aac gaa gcc ac
Template 3–2	tgg ctt gca cta cga cgt gct gac agc gtc tag caa gcc act ggc ttg
Primer 3	agc aga cgt cga tca agc cag tgg ct