Forces shaping major histocompatibility complex evolution in two hyena species

The Evolution of Major Histocompatibility Complex in Birds

The major histocompatibility complex.

The major histocompatibility complex on the sixth chromosome controls expression of a complex series of cell surface antigens which comprise the human leukocyte antigen (HLA) system. These markers, beyond their importance in human organ transplantation, have been demonstrated to occur with an increased prevalence in certain disease states. The group of conditions showing the closest association...

Porcine major histocompatibility complex.

The major histocompatibility complex in swine (swine leucocyte antigen: SLA) is located on chromosome 7 with the class I and class III regions separated by the centromere from the class II region. The overall molecular organisation of the class I and III regions is well known, but further research is needed to establish that of the class II region. Approximately sixty genes have been characteri...

Major-histocompatibility-complex variation in two species of cichlid fishes from Lake Malawi.

Lake Malawi in eastern Africa harbors > 500 endemic species of cichlid fishes, all of which are believed to have emerged from a single founding population in the past 2 Myr. Molecular characterization of differences among the species could provide important information about the nature of speciation in the period of adaptive radiation. Because of the close relationship, however, molecular varia...

Cd1, Tuberculosis, and the Evolution of Major Histocompatibility Complex Molecules

Although the role of class I and class II MHC in adaptive immunity against microbial pathogens is clear, the participation of nonpolymorphic MHC molecules in host defense remains less well defined. Roles for murine class I MHC molecule Qa-2 and class Ib molecule H2-M3 have been suggested (1–3), and accumulating data have prompted speculation that CD1 family members may be important in immunity ...