This strain is a fluorescently labeled model carrying a constitutively fluorescent green/yellow protein (mNeonGreen) reporter gene expression element, with mNeonGreen protein expression regulated by the CAG promoter. The model was constructed by integrating the "CAG-mito-mNeonGreen" gene expression element into the mouse genome using transgenic technology, resulting in the specific expression of mNeonGreen protein in the mitochondria.