Species	Reference gene ID	Possible function	Papers / DOI
Arabidopsis	At5g24120	Essential protein.	AtSig5 is an essential nucleus-encoded Arabidopsis sigma-like factor.; 2003; DOI: 10.1104/pp.102.017913; PMID: 12805603; https://pubmed.ncbi.nlm.nih.gov/12805603/ | Blue light-induced transcription of plastid-encoded psbD gene is mediated by a nuclear-encoded transcription initiation factor, AtSig5.; 2004; DOI: 10.1073/pnas.0308362101; PMID: 14976253; https://pubmed.ncbi.nlm.nih.gov/14976253/ | Light induction of Arabidopsis SIG1 and SIG5 transcripts in mature leaves: differential roles of cryptochrome 1 and cryptochrome 2 and dual function of SIG5 in the recognition of plastid promoters.; 2008; DOI: 10.1111/j.1365-313x.2008.03567.x; PMID: 18532976; https://pubmed.ncbi.nlm.nih.gov/18532976/ | ANK6, a mitochondrial ankyrin repeat protein, is required for male-female gamete recognition in Arabidopsis thaliana.; 2010; DOI: 10.1073/pnas.1015911107; PMID: 21123745; https://pubmed.ncbi.nlm.nih.gov/21123745/