Long S E
Cytogenet Cell Genet. 1977;18(2):82-9. doi: 10.1159/000130751.
One hundred-and-two 13- to 18-day blastocysts were collected from 98 Scottish Blackface ewes mated to one of four New Zealand Romney rams heterozygous for the Massey I (t1) translocation. The karyotype of 75 blastocysts was established, of which 22 were 54,XY, 18 were 54,XX, 20 were 53,XY,t1, and 15 were 53,XX,t1. It is suggested that these results indicated that there was no increase in embryonic loss in ewes mated to rams heterozygous for the Massey I (t1) translocation and that the unbalanced secondary spermatocytes in heterozygous males probably did not mature to spermatozoa.
从98只与4只携带梅西I（t1）易位杂合基因的新西兰罗姆尼公羊之一交配的苏格兰黑脸母羊中收集了102个13至18天的囊胚。确定了75个囊胚的核型，其中22个为54,XY，18个为54,XX，20个为53,XY,t1，15个为53,XX,t1。这些结果表明，与携带梅西I（t1）易位杂合基因的公羊交配的母羊胚胎损失没有增加，并且杂合雄性中不平衡的次级精母细胞可能没有发育成熟为精子。
