Mukherjee B B, Milet R G
Proc Natl Acad Sci U S A. 1972 Jan;69(1):37-9. doi: 10.1073/pnas.69.1.37.
The present study shows that a high degree of variability in the distribution of XX and XY cells exists among various tissues of artificially assembled or spontaneously occurring mouse chimeras. This variation from the expected equal distribution in various tissues of an animal may have resulted from random distribution, unequal segregation, or selective differences of such cells during development. This variation may also explain the observed intertissue and interanimal variations in the distribution of inactive paternal and maternal X-chromosomes in some mammalian females.
本研究表明,在人工组装或自然产生的小鼠嵌合体的各种组织中,XX和XY细胞的分布存在高度变异性。动物各种组织中这种与预期均等分布的差异可能是由于这些细胞在发育过程中的随机分布、不等分离或选择性差异所致。这种变异也可能解释了在一些哺乳动物雌性中观察到的非活性父本和母本X染色体在组织间和动物间分布的差异。