βTub60D genomic sequence has two conserved substitutions.
βTub60D::βTub85Dstar has male sterile phenotype, suppressible by βTub85D8
βTub60D::βTub85Dstar has male sterile phenotype, suppressible by βTub85D3
βTub60D::βTub85Dstar has male sterile phenotype, suppressible by βTub85D7
βTub60D::βTub85Dstar has male sterile phenotype, suppressible by βTub85DDrv1
βTub60D::βTub85Dstar has male sterile phenotype, non-suppressible by βTub85D6
βTub60D::βTub85Dstar has male sterile phenotype, non-suppressible by βTub85Dn
βTub60D::βTub85Dstar, βTub85D6 has male sterile phenotype
βTub60D::βTub85Dstar, βTub85D8 has male fertile phenotype
A large mass of motile sperm, equivalent to that in wild type males, is present in the seminal vesicles of βTub60D::βTub85Dstar βTub85D8 males. βTub60D::βTub85Dstar and βTub85D6 isoforms disrupt a common aspect of axoneme assembly.