In a collaborative study involving our colleagues from the Magee-Womens Research Institute, Pittsburgh, PA, USA (led by Alexander Yatsenko), the CeRA and ourselves, mutations in the X‐linked gene TEX11 (testis-expressed gene 11, OMIM 300311) were identified to be a cause of meiotic arrest and azoospermia [59]. Here, TEX11 is linked to Azoospermia.