Can GMail aliases be used with Desk or are dedicated email addresses required?

Can GMail aliases be used with Desk or are dedicated email addresses required?

The thread title says it all. Let's suppose I create (2) Desk departments:

  • PC Support
  • iPad support
Can I use two gmail aliases like this?

PCsupport@mycompany.com link to PCsupport@mycompany.zohodesk.com
iPadsupport@mycompany.com link to iPadsupport@mycompany.zohodesk.com

Or do I need to create (2) dedicated Gmail addresses?

Thank You