Yu J, Lazzeroni L, Qin J, Huang M M, Navidi W, Erlich H, Arnheim N
Molecular Biology Program, University of Southern California, Los Angeles 90089-1340, USA.
Am J Hum Genet. 1996 Dec;59(6):1186-92.
Studies of recombination between the markers D6S291 and D6S109 in individuals by sperm typing provide direct evidence for significant variation in recombination among humans. A statistically significant difference in the recombination fraction (range 5.1%-11.2%) was detected among five donors. This variation could reflect polymorphisms in genes affecting recombination or in chromosome structure. Ignoring this variability in studies designed to examine the relationship between physical and genetic distances could lead to incorrect inferences. Individual variation in recombination makes it difficult to predict the recombination fraction for an interval in any particular individual. This could be important in certain genetic counseling situations.
通过精子分型对个体中标记物D6S291和D6S109之间的重组进行研究,为人类重组存在显著差异提供了直接证据。在五个供体中检测到重组率存在统计学上的显著差异(范围为5.1%-11.2%)。这种变异可能反映了影响重组的基因或染色体结构中的多态性。在旨在研究物理距离与遗传距离之间关系的研究中忽略这种变异性可能会导致错误的推断。重组的个体差异使得难以预测任何特定个体中某一区间的重组率。这在某些遗传咨询情况下可能很重要。