Table 2.

The number of identified PHT1 members in some plants.

Plant	PHT1 members	Reference
Arabidopsis	9	Muchhal et al., 1996; Mudge et al., 2002; Shin et al., 2004
Rice	13	Paszkowski et al., 2002; Ming et al., 2005; Liu et al., 2011
Tobacco	5	Baek et al., 2001; Kai et al., 2002; Chen et al., 2007
Potato	5	Leggewie et al., 1997; Rausch et al., 2001; Gordon-Weeks et al., 2003; Nagy et al., 2005
Barley	11	Rae et al., 2003; Mlodzińska and Zboińska, 2016
Maize	13	Liu F. et al., 2016
Tomato	8	Chen et al., 2014
Medicago truncatula	6	Javot et al., 2007a; Liu et al., 2008
Soybean	15	Fan et al., 2013
Setaria italica	12	Ceasar et al., 2014
Wheat	13	Davies et al., 2002; Sisaphaithong et al., 2012; Shukla et al., 2016
Eutrema salsugineum	13	Velasco et al., 2016