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SUT4 is a kind of sucrose transporter located in the vacuole membrane, it has been confirmed that SUT4 interacts with CybS-2 to regulate seed germination in response to sucrose and glucose.In this study, we screened two genes whose expression is associated with SUT4 during seed germination by RT-PCR.HXK1 is a bifunctional enzyme of both hexose phosphorylation activity and glucose sensor mediating sugar signal transduction.