The evolution model was found to be different between F/10 and G/11 xylanase, this attributes to their different three-dimension structures.

• 而G/11家族木聚糖酶在进化时间则相对较近，多在真菌中出现，功能分化较为完全，很少含有糖苷酶的属性，分解产物中低聚寡糖成分较多。