Proportions of private and shared alleles between Pseudotropheus fainzilberi and P. emmiltos at MHC class II B intron 1 alleles and exon 2 amino acid alleles.

Distinctiveness scores Dc between intron 1 alleles and the whole sequence of exon 2 amino acid alleles (Exon 2), between intron 1 alleles and positively selected putative ABS amino acid sequences (dN/dS>1), and between intron 1 alleles and exon 2 amino acid alleles outside the putative ABS region (dN/dS��1), were compared using Mann-Whitney U tests. Significant p-values (�� = 0.05) are in bold.