DNAH1 and male infertility: Except for the DNAH1 gene homozygous missense variant c.3460A>C (p.Lys1154Gln) that was reported to be responsible for PCD in combination with SI (Imtiaz et al., 2015), the other known variants were involved in male infertility (Amiri-Yekta et al., 2016; Sha et al., 2017; Wang et al., 2017).