Science. 1975 Sep 12;189(4206):888-90. doi: 10.1126/science.189.4206.888.
Molecular hybridization techniques have been used to estimate the degree of DNA base sequence homology between some members of the fern genus Osmunda. Under conditions permitting extensive reassociation, measurements of the extent of inter-specific reaction and the thermal stability of the hybrid molecules indicated that O. claytoniana L. (interrupted fern) shares more DNA homology with O. cinnamomea L. (cinnamon fern) than it does with O. regalis L. (royal fern). These findings are in conflict with predictions from a recent analysis of living and fossil specimens by numerical techniques. However, they are consistent with the earlier, more traditional, taxonomic assignments.
分子杂交技术已被用于评估凤尾蕨属某些成员的 DNA 碱基序列同源性程度。在允许广泛重杂交的条件下，对种间反应程度和杂交分子热稳定性的测量表明，克莱顿凤尾蕨（间断凤尾蕨）与肉桂凤尾蕨（肉桂蕨）的 DNA 同源性比与皇家凤尾蕨（皇家蕨）的更多。这些发现与最近通过数值技术对活体和化石标本进行的分析预测相矛盾。然而，它们与更早的、更传统的分类学分配是一致的。
