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Figure 2


Fig. 2. Structure of the FoxK1 transcripts from T. rubripes and zebrafish. (A) Gene structure of FoxK1 from T. rubripes (TFoxK1) and schematic representation of its three alternatively spliced transcripts ({alpha}, {gamma} and {delta}). Exons (blue boxes) are indicated by Arabic numbers and introns labelled with Roman numerals; introns, yellow boxes; stop codons, asterisks. The positions of the primers used for qPCR are indicated by arrows (not to scale). Red bars represent the location of the riboprobes used for in situ hybridisation. Scale bar, 400 bp. (B) Exon–intron structure of zebrafish FoxK1 (DFoxK1; GenBank: NM_199902). Scale bar, 1.5 kb. Introns I and II of DFoxk1 are not depicted to scale; the size of these introns is 4.7 kb and 10.5 kb, respectively. The last exon comprises a 463 kb untranslated region (white rectangle).