OMIA 002033-89462 : A2 milk in Bubalus bubalis

In other species: cattle

Possibly relevant human trait(s) and/or gene(s) (MIM number): 115460 (gene)

Mendelian trait/disorder: yes

Considered a defect: no

Key variant known: no

Species-specific description: de Oliveira et al. (2021): "A total of 657 buffaloes of four different breeds were genotyped and all animals carried the A2A2 genotype, i.e., allele A1 does not exist in the buffalo species."

Associated gene:

Symbol Description Species Chr Location OMIA gene details page Other Links
CSN2 casein beta Bubalus bubalis 7 NC_059163.1 (32009924..32018835) CSN2 Homologene, Ensembl, NCBI gene


2021 de Oliveira, L.S.M., Alves, J.S., Bastos, M.S., da Cruz, V.A.R., Pinto, L.F.B., Tonhati, H., Costa, R.B., de Camargo, G.M.F. :
Water buffaloes (Bubalus bubalis) only have A2A2 genotype for beta-casein. Trop Anim Health Prod 53:145, 2021. Pubmed reference: 33511501. DOI: 10.1007/s11250-021-02591-9.

Edit History

  • Created by Imke Tammen2 on 11 Feb 2021
  • Changed by Imke Tammen2 on 11 Feb 2021