Species	Reference gene ID	Possible function	Papers / DOI
Arabidopsis	At2g14760	Transcription factor bHLH84.	No verified direct reference in this release
Arabidopsis	At4g33880	Transcription factor involved in the regulation of root hair elongation.	A mechanistic framework for auxin dependent Arabidopsis root hair elongation to low external phosphate.; 2018; DOI: 10.1038/s41467-018-03851-3; PMID: 29651114; https://pubmed.ncbi.nlm.nih.gov/29651114/
Arabidopsis	At1g27740	Transcription factor involved in the regulation of root hair elongation.	A basic helix-loop-helix transcription factor controls cell growth and size in root hairs.; 2010; DOI: 10.1038/ng.529; PMID: 20139979; https://pubmed.ncbi.nlm.nih.gov/20139979/ | Intensity of a pulse of RSL4 transcription factor synthesis determines Arabidopsis root hair cell size.; 2015; DOI: 10.1038/nplants.2015.138; PMID: 27251390; https://pubmed.ncbi.nlm.nih.gov/27251390/ | ROOT HAIR DEFECTIVE SIX-LIKE4 (RSL4) promotes root hair elongation by transcriptionally regulating the expression of genes required for cell growth.; 2016; DOI: 10.1111/nph.14095; PMID: 27452638; https://pubmed.ncbi.nlm.nih.gov/27452638/ | A mechanistic framework for auxin dependent Arabidopsis root hair elongation to low external phosphate.; 2018; DOI: 10.1038/s41467-018-03851-3; PMID: 29651114; https://pubmed.ncbi.nlm.nih.gov/29651114/
Arabidopsis	At5g43175	Transcription factor bHLH139.	No verified direct reference in this release
Rice	Os12g0508500	Transcription factor that acts as a regulator of iron homeostasis.	Identification of OsbHLH133 as a regulator of iron distribution between roots and shoots in Oryza sativa.; 2013; DOI: 10.1111/j.1365-3040.2012.02569.x; PMID: 22755510; https://pubmed.ncbi.nlm.nih.gov/22755510/