Abstract: In the study，we obtained four R2R3-MYB genes which were strongly induced by salt in the
roots of grapevine rootstock‘1103P’. The proteins encoded by the above four genes were clustered into
the different subgroups in the phylogenetic tree of Arabidopsis R2R3-MYB proteins. The four genes were
expressed in root，stem，leaf and berry，whereas they showed the different expression levels in the different
tissues. For example，VvMYB112 was expressed predominantly in the root. Among the four genes，only
VvMYB112 could be induced by 100–200 mmol · L-1 salt. Besides，VvMYB112 and VvMYB15 were
induced by PEG and cold as well，while VvMYB107 and VvMYB87 did not respond to or were repressed by
PEG6000 or cold. Taken together，the four screened genes showed the different expression patterns in the
different tissues or under the different stress treatment，which indicated that they might mediate the salt
resistance by the different pathways.