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Table 1 Number of MHC lineage genes in teleosts and spotted gar

From: A comprehensive analysis of teleost MHC class I sequences

Class MHC Class I MHC Class II
Species\Lineage U Z L S P Total DA DB DE total
Atlantic salmon 7 7 10 1 1 26 2* 5* 4* 11
Zebrafish 4 10 16 - - 30 14* 7* - 21*
Cavefish 13 18 2 7 2 42 4 1 - 53
Medaka 13 5 - - - 18 6* 5* -* 11*
Platyfish 19 3 - - - 22 n.a. n.a. n.a. n.a.
Tilapia 45 6 1 - - 52 33* 16* -* 49*
Stickleback 29 1 - - - 30 11* 3* -* 14*
Tetraodon 19 1 - - 5 25 7* -* -* 7*
Fugu 8 2 - - 24 34 7* -* -* 7*
Cod 100* 1 - - 1 2 -* -* -* -*
Spotted gar 5 1 2 - 4 121 22* 4* 6*
Total 162 55 31 8 37 293     
  1. Number of genes and gene fragments identified in this study are shown for each species and each lineage. Data from other studies are marked with * and not counted (Cod U lineage gene estimate and lack of MHCII [17] and the remaining MHC class II data [19] where MHCII alpha and beta genes are counted separately).1Two of the Spotted gar MHCI sequences are of unknown lineage origin. 2Two Spotted gar MHCII sequences could not be defined as DA or DB and are thus shown as DA/DB here [19]. 3No thorough study was performed on cavefish MHC class II genes and platyfish MHC class II genes were not analyzed (n.a.).