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Abstract: A study of the human leukocyte antigen (HLA) genetic characteristics in the Zhuang, the largest ethnic population in China, would provide insight into Zhuang history and give a useful tool for disease associations, transplantation, and anthropology. In the present study, we report the comprehensive HLA-A, HLA-B, HLA-C, and HLA-DRB1 alleles and haplotypes in the zhuang population of southern China for the first time. A total of 13 HLA-A, 24 HLA-B, 22 HLA-C, and 18 HLA-DRB1 were identified in 104 Zhuang individuals. The frequencies of HLA-A*11:01, A*02:07, A*24:02, A*02:03, and A*33:03 on A loci, B*15:02, B*58:01, B*46:01, and B*13:01 on B loci, C*03:04, C*08:01, C*01:02, C*03:02, and C*07:02 on C loci, and DRB1*15:01, DRB1*16:02, DRB1*14:01, DRB1*15:02, and DRB1*03:01 on the DRB1 loci were >10%. The A*33:03-C*03:02-B*58:01-DRB1*03:01 and A*02:07-C*01:02-B*46:01-DRB1*14:01 haplotypes were predominant in the Zhuang. The phylogenetic tree, as well as the analysis of haplotypes, suggested that the Zhuang are genetically similar to southern Chinese populations, especially the Zhuang-Dong language-speaking populations, such as the Bouyei, Dai, and Maonan. Even though the Zhuang and southern Chinese populations shared common alleles and haplotypes, the Zhuang has maintained its unique genetic characteristics.

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