Table 1.

Relationship between chlorophyll content and the regulation of flowering time in response to different photoperiods.

Gene	Species	Effect	Photoperiod conditions	Flowering phenotype	References
Low chlorophyll levels
Heterologous overexpression of IbVPE1	Sweet potato	Upregulation of AP1, LFY	LD	Early flowering	Jiang et al., 2019
cry1a/cry2	Tomato	Downregulation of SP5G	LD	Early flowering	Fantini et al., 2019
ye1	Rice	Downregulation of DTH8 (LD and SD) Upregulation of EF7 (LD)	Photoperiod-insensitive	Early flowering	Peng et al., 2019
High chlorophyll levels
Overexpression of MtRAV3	Medicago truncatula	Downregulation of MtFTa1, MtSOC1, and GA biosynthesis	LD	Late flowering	Wang et al., 2021a