植物中的交叉和重组数据：它们是否兼容？
Chiasma and recombination data in plants: are they compatible?
作者信息
Nilsson N O, Säll T, Bengtsson B O
机构信息
Department of Genetics, Lund University, Sweden.
出版信息
Trends Genet. 1993 Oct;9(10):344-8. doi: 10.1016/0168-9525(93)90038-j.
It has long been considered that the number of chiasmata formed during meiosis corresponds to the number of crossovers indicated by the genetic map. However, recent investigations in plants show an unexpected discrepancy in the results obtained when calculating the total number of crossover events per meiosis by these two methods. Is this discrepancy due to methodological difficulties? Or is there something fundamentally wrong with our understanding of crossovers and chiasmata?
长期以来，人们一直认为减数分裂过程中形成的交叉数目与遗传图谱所示的交换数目相对应。然而，最近对植物的研究表明，当用这两种方法计算每个减数分裂中交换事件的总数时，所得结果存在意外差异。这种差异是由于方法上的困难吗？还是我们对交换和交叉的理解存在根本性错误？
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