10h1h

1(kbp

)

2-

3-

6-

1-

10-

4-

intronexon2exon1 f3′5′h2Tgt1

Tgt1 (9,446bp)

LTR LTR

Eco RI Eco RI

(a)

(b)

ORF1(488aa)

2180bp 2180bp AGCAGAGCAG

PBSPPT

ORF2(1152aa)

Fig. S5

Xba I Xba I

Exposure time

2 1 2