<i>Uxt</i>^<i>KO/Y</i> male or <i>Uxt</i>^<i>KO/</i>+ results in embryonic lethality.

UxtKO/Y male or UxtKO/+ results in embryonic lethality.UxtKO/Y雄性个体或UxtKO/+基因型个体均可引发胚胎致死。