Species	Reference gene ID	Possible function	Papers / DOI
Arabidopsis	At3g21670	Low-affinity nitrate transporter.	No verified direct reference in this release
Arabidopsis	At1g12110	Dual affinity nitrate transporter.	CHL1 is a dual-affinity nitrate transporter of Arabidopsis involved in multiple phases of nitrate uptake.; 1999; DOI: 10.1105/tpc.11.5.865; PMID: 10330471; https://pubmed.ncbi.nlm.nih.gov/10330471/ | The nitrate transporter AtNRT1.1 (CHL1) functions in stomatal opening and contributes to drought susceptibility in Arabidopsis.; 2003; DOI: 10.1105/tpc.006312; PMID: 12509525; https://pubmed.ncbi.nlm.nih.gov/12509525/ | Switching between the two action modes of the dual-affinity nitrate transporter CHL1 by phosphorylation.; 2003; DOI: 10.1093/emboj/cdg118; PMID: 12606566; https://pubmed.ncbi.nlm.nih.gov/12606566/ | Transcript profiling in the chl1-5 mutant of Arabidopsis reveals a role of the nitrate transporter NRT1.1 in the regulation of another nitrate transporter, NRT2.1.; 2004; DOI: 10.1105/tpc.104.024380; PMID: 15319483; https://pubmed.ncbi.nlm.nih.gov/15319483/ | The Arabidopsis NRT1.1 transporter participates in the signaling pathway triggering root colonization of nitrate-rich patches.; 2006; DOI: 10.1073/pnas.0605275103; PMID: 17148611; https://pubmed.ncbi.nlm.nih.gov/17148611/ | A genetic screen for nitrate regulatory mutants captures the nitrate transporter gene NRT1.1.; 2009; DOI: 10.1104/pp.109.140434; PMID: 19633234; https://pubmed.ncbi.nlm.nih.gov/19633234/ | Nitrate-regulated auxin transport by NRT1.1 defines a mechanism for nutrient sensing in plants.; 2010; DOI: 10.1016/j.devcel.2010.05.008; PMID: 20627075; https://pubmed.ncbi.nlm.nih.gov/20627075/ | The herbicide sensitivity gene CHL1 of Arabidopsis encodes a nitrate-inducible nitrate transporter.; 1993; DOI: 10.1016/0092-8674(93)90399-b; PMID: 8453665; https://pubmed.ncbi.nlm.nih.gov/8453665/ | The Arabidopsis CHL1 protein plays a major role in high-affinity nitrate uptake.; 1998; DOI: 10.1073/pnas.95.25.15134; PMID: 9844028; https://pubmed.ncbi.nlm.nih.gov/9844028/
Arabidopsis	At2g26690	Low-affinity proton-dependent nitrate transporter.	No verified direct reference in this release
Arabidopsis	At3g54140	Peptide transporter.	AtPTR1, a plasma membrane peptide transporter expressed during seed germination and in vascular tissue of Arabidopsis.; 2004; DOI: 10.1111/j.1365-313x.2004.02224.x; PMID: 15500465; https://pubmed.ncbi.nlm.nih.gov/15500465/ | AtPTR1 and AtPTR5 transport dipeptides in planta.; 2008; DOI: 10.1104/pp.108.123844; PMID: 18753286; https://pubmed.ncbi.nlm.nih.gov/18753286/
Arabidopsis	At5g01180	Peptide transporter.	AtPTR1 and AtPTR5 transport dipeptides in planta.; 2008; DOI: 10.1104/pp.108.123844; PMID: 18753286; https://pubmed.ncbi.nlm.nih.gov/18753286/