Fig. 3

Nuclear single-copy gene models. Models for the amplified portions of the TIF3H1 (a), DAL1 (b), and AT5G57410 (c) genes used for resolving shallow evolutionary divergences in H. sect. Cornidia. Lengths of the respective regions are drawn as found in H. seemannii (Granados M. et al. 479, Pueblo Nuevo, Durango, Mexico). Solid colored large boxes identify exon regions of A. thaliana, whereas dotted colored large boxes denote exon regions of H. seemannii. Homology of exon regions between the two species is indicated by common colors. Non-coding regions are indicated by grey boxes. Relative position of each gene within the respective A. thaliana chromosome is shown as indicated in TAIR (http://www.arabidopsis.org/)