Original sentence: However, several studies have suggested that R1a lineages may have their origins in North India.Oxford University's Stephen Oppenheimer in his book The Real Eve: Modern Man's Journey Out Of Africa, agree's with Cambridge geneticist Toomas Kivisild findings in that "For me and for Toomas Kivisild, South Asia is logically the ultimate origin of M17 and his ancestors", and that "one estimate for the age of this line in India is as much as 36,000 years old"
Edited sentence: Other studies, however, suggest R1a lineages may have their origins in North India.Stephen Oppenheimer agree's with geneticist Toomas Kivisild findings in that "For me and for Toomas Kivisild, South Asia is logically the ultimate origin of M17 and his ancestors", and that "one estimate for the age of this line in India is as much as 36,000 years old"