A 1-bp deletion in bovine QRICH2 causes low sperm count and immotile sperm with multiple morphological abnormalities.
Maya HiltpoldFredi JanettXena Marie MapelNaveen Kumar KadriZih-Hua FangHermann SchwarzenbacherFranz R SeefriedMirjam SpengelerUlrich WitschiHubert PauschPublished in: Genetics, selection, evolution : GSE (2022)
A recessive loss-of-function allele of the bovine QRICH2 gene likely causes low sperm concentration and immotile sperm with multiple morphological abnormalities. Routine sperm analyses unambiguously identify homozygous bulls for this allele. A direct gene test can be implemented to monitor the frequency of the undesired allele in cattle populations.