Figure 1
From: Identification of novel cis-regulatory elements of Eya1 in Xenopus laevis using BAC recombineering

Genomic region of Eya1 in Xenopus tropicalis. (A) Position of BACS 15 and 16 on chromosome 6 of X.tropicalis. Note that the precise position of the plus end (right side) for BAC16 has not been reported (see Suppl. Figure 1 and Table 1). (B,C) Detail of BAC15 (B) and BAC16 (C) with the positions of the GFP reporter cassette (insert 1, blue) and the regions deleted in various deletion constructs (orange) indicated. Deletion constructs depicted by faint orange color were not tested. Scale shows position on chromosome 6 of the Xenopus tropicalis genome (version 9.0; http://www.xenbase.org/). Blue double arrows show position of the two genomic regions with enhancer activity identified in the present study, BAC15P2D2-P2D3 and BAC16P2D3-P2D4.