Board Thread:Naruto Discussions/@comment-25358381-20140903032737/@comment-25358381-20140903045351

Mrlmm0605 wrote: The Sharingan isn't inherently related to Fire Release. Some users of an enhanced Sharingan just happen to be able to use techniques that exist as fire through the use of said enhanced Sharingan. It isn't universal, so no expectations may be made.

the link I made with the sharingan is based on every Uchiha in the manga and anime showing an affinity for fire style. Ameterasu is a fire style jutsu directly related to the sharingan (not sure if you could use ameterasu without being able to use fire style.)