Glazko T T, Vinnichuk D T, Sozinov A A
Tsitol Genet. 1992 Sep-Oct;26(5):6-11.
A cytogenetic examination of a cow and its offsprings, obtained by pair transplantations of the embryos was carried out. The fragile X and the heteromorphism of the chromosomes XX of this cow and some of its offsprings were revealed. The variability of the hematological chimerism of the pair transplanted embryos was observed. The immigrated cells were, as a rule, distinguished by the comparatively low frequencies of the metaphases with the nearly located chromosomes XX. The heterogeneity of the stem blood cells of the embryos for some traits, and for the ability to migrate in the blood of the twin is under discussion.
对一头母牛及其通过胚胎配对移植获得的后代进行了细胞遗传学检查。发现了这头母牛及其部分后代的脆性X染色体和XX染色体的异态性。观察到配对移植胚胎的血液嵌合现象的变异性。通常，移入的细胞以具有近位XX染色体的中期频率相对较低为特征。正在讨论胚胎干细胞在某些性状以及在双胞胎血液中迁移能力方面的异质性。
