Species	Reference gene ID	Possible function	Papers / DOI
Arabidopsis	At1g09570	Regulatory photoreceptor which exists in two forms that are reversibly interconvertible by light: the Pr form that absorbs maximally in the red region of the spectrum and the Pfr form that absorbs maximally in the far-red region.	Arabidopsis fhl/fhy1 double mutant reveals a distinct cytoplasmic action of phytochrome A.; 2007; DOI: 10.1073/pnas.0703855104; PMID: 17566111; https://pubmed.ncbi.nlm.nih.gov/17566111/ | Phytochrome A mediates rapid red light-induced phosphorylation of Arabidopsis FAR-RED ELONGATED HYPOCOTYL1 in a low fluence response.; 2009; DOI: 10.1105/tpc.108.061259; PMID: 19208901; https://pubmed.ncbi.nlm.nih.gov/19208901/ | FAR-RED ELONGATED HYPOCOTYL1 and FHY1-LIKE associate with the Arabidopsis transcription factors LAF1 and HFR1 to transmit phytochrome A signals for inhibition of hypocotyl elongation.; 2009; DOI: 10.1105/tpc.109.067215; PMID: 19482971; https://pubmed.ncbi.nlm.nih.gov/19482971/ | Missense mutation in the amino terminus of phytochrome A disrupts the nuclear import of the photoreceptor.; 2012; DOI: 10.1104/pp.111.186288; PMID: 21969386; https://pubmed.ncbi.nlm.nih.gov/21969386/ | PHYTOCHROME INTERACTING FACTOR8 Inhibits Phytochrome A-Mediated Far-Red Light Responses in Arabidopsis.; 2020; DOI: 10.1105/tpc.19.00515; PMID: 31732705; https://pubmed.ncbi.nlm.nih.gov/31732705/