叶绿体对植物光合作用和生长是必要的。许多基因被鉴定参与调控植物叶绿体发育。然而，在分子水平上这些基因如何调控叶绿体生物合成是未知的。在本研究中，我们分离了一个色素缺乏的突变体ygl2。YGL2编码一个牻牛儿基牻牛儿基还原酶。YGL2的第三外显子有一个碱基突变（T1361G），导致编码产物发生错义突变（L454R）。透射电镜显示，突变体ygl2的叶绿体发育受损。在突变体ygl2中，质体编码基因的表达水平发生显著变化。此外，通过酵母双杂交分析我们发现YGL2与RNA编辑因子MORF8互作。

To safely and sustainably utilize genetic breeding techniques for crop production, greater understanding of the potential effects of genetically modified herbicide-tolerant (GMHT) crops on the ecological functions of predators is required. In the laboratory, we examined the functional and numerical responses of Cyrtorhinus lividipennis Reuter to eggs of brown planthopper (BPH), Nilaparvata lugens (Stål), which were reared on GMHT rice Bar68-1; the untransformed parental cultivar, D68; or a BPH-susceptive rice variety, Taichung Native 1. All stages of nymphs and female adult of C. lividipennis, either on GMHT rice or control plants, exhibited typical type II functional responses when fed on BPH eggs; the attacking rate and handling time of C. lividipennis on GMHT rice Bar68-1 was not significantly different from that on D68. The numerical responses of C. lividipennis on GMHT rice or controls fit Beddington’s model; there were no significant differences in the parameters of numerical responses between GMHT rice Bar68-1 and D68. The results indicated that the functional and numerical responses of C. lividipennis to BPH eggs are not affected by GMHT rice Bar68-1.