Overexpression of Glycine soja WRKY20 enhances both drought and salt tolerance in transgenic alfalfa (Medicago sativa L.)

High salinity and drought are major abiotic factors limiting productivity of alfalfa. GsWRKY20 encodes a WRKY-type transcription factor from Glycine null null null null null null null null null null null null null null null soja. In our previous study, heterologous expression of GsWRKY20 in Arabidopsis significantly increased the drought tolerance of Arabidopsis. In order to assess whether GsWRKY20 is also involved in salt stress and breed...