Board Thread:Naruto Discussions/@comment-2198188-20140420225832/@comment-1872728-20140612165421

Sharingan, Mangekyo Sharingan and Rinnegan had markings on the eye, compared to Sage Mode eye with markings outside the eye. You can even say that Dojutsu was descended from the Shinju's Beast Form and Senjutsu was descended from the Shinju's Tree Form.