在遗传咨询中发现两例13与14号染色体间的罗伯逊型平衡易位携带者(图1),男女各一例,其表型皆正常。男性携带者导致妻子5次妊娠早期流产,其染色体核型为45,XY,-13,-14,+t(13qter→cen→13p11∷14p11→cen→14qter)。其妻核型为46,XX。另一例女性携带者,三次妊娠早期流产,染色体分析,核 Two genetic Robertson-Balancing translocations between chromosomes 13 and 14 (Figure 1) were found in the genetic counseling, one in each of men and women, and were phenotypically normal. Male carriers led to 5 aborted pregnancies in early wives. The chromosome karyotype was 45, XY, -13, -14, + t (13qter → cen → 13p11 :: 14p11 → cen → 14qter). His wife karyotype 46, XX. Another case of female carriers, abortion three times early pregnancy, chromosome analysis, nuclear