Fig. 2
From: SplicedFamAlign: CDS-to-gene spliced alignment and identification of transcript orthology groups
![Fig. 2](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs12859-019-2647-2/MediaObjects/12859_2019_2647_Fig2_HTML.png)
Two orthologous CDS, according to the definition of splicing orthology: a) the exon structures of the two CDS are preserved by their splicing alignments against the gene sequence and b) the induced one-to-one correspondence between the exons of CDS1 and CDS2 is (exon1.1,exon2.1),(exon1.2,exon2.2), (exon1.3,exon2.3)