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Table 1 All candidate genes and the physiological functions used in this study

From: Tissue-specific expression analysis of Na+ and Cl transporter genes associated with salt removal ability in rice leaf sheath

Ion Transporter gene Candidate gene Function Reference
Na+ HKT
High-affinity K+ transport
(Plasma membrane)
OsHKT1;1
OsHKT1;3
OsHKT1;4
OsHKT1;5
OsHKT2;1
OsHKT2;3
OsHKT2;4
Control root-to-shoot transfer of Na+ by unloading of Na+ from the xylem into xylem parenchyma cells, and reduce Na+ and increasing K+ levels in shoots during salt stress [2, 7, 10,11,12,13, 18, 19]
NHX
Na+/H+ Exchanger
(Tonoplast)
OsNHX1
OsNHX2
OsNHX3
OsNHX4
OsNHX5
Maintain low Na+ in the cytosol under salt stress by vacuolar Na+ sequestration [24]
SOS
Salt Overly Sensitive
(Plasma membrane)
OsSOS1 Mediate Na+ loading into the xylem [27, 34]
Cl NPF
Nitrate Transporter 1/Peptide Trasnport Family
(Plasma membrane)
OsNPF2;4 Mediate Cl loading to the root xylem [35]
CLC
Chloride Channel
(Tonoplast)
OsCLC1
OsCLC2
OsCLC5
OsCLC6
Function in compartmentalizing Cl ions into the vacuole in rice [39]
CCC
Cation-Chloride Cotransporter
(Plasma membrane)
OsCCC1 Mediate Cl loading and unloading between xylem parenchyma cells and xylem vessels [38]
SLAH
Slow-Type Anion Channel-Associated Homolog
(Plasma membrane)
OsSLAH1
OsSLAH7
Mediate Cl loading to the root xylem [36]