In this article, we expatiate the research proceeding on expansin all-roundly.

就此最新研究进展，作一综合阐述。

However, so far, studies related to the creasing fruits and expression characteristics of expansin during growth have not been documented.

然而，熟过程中现的皱皮与expansin基因的表达特性有关，目前尚未见报道。