Proof of Funds with multiple bank accounts

Hi! I have a primary account using which I wish to show proof of funds in express entry. As of now I am in the pool of candidates and awaiting ITA. I am yet to accumulate the minimum proof of funds in my primary account, but I do have some money in another account(Joint account with my parents which was opened before I was 18). If I transfer this amount to the primary account, I would meet the minimum fund requirement.
Is it okay to transfer an amount in excess of 1.5 lacs from my account in another bank to the primary account which I wish to show in PoF?

Thank you in advance.