Figure 3. Identity plots of MHC regions.

Crested ibis Core Region vs. chicken (a) and quail (b), and crested ibis BG Region vs. chicken (c). Forward and reverse transcript orientations are respectively designated with upper and lower boxes on the horizontal axis or left and right boxes along the vertical axis. The reference sequence of quail MHC (AB078884) lacks the reported genes C4 and Cenp-A¹⁸,⁴², so we excluded them in the identity plot. For crested ibis vs. quail, we only compared the Core Region, since the extended TRIM-located region has not been reported in the quail MHC yet.