Haplogroup J (Y-DNA)
J is a Middle Eastern haplogroup, divided into the northern J2 and the southern J1. J2 is by far the most common variety in Europe.
The map below shows the spread of J2. The darker green color indicates higher numbers of men with J2.
"Iran shows some of the highest levels of Haplogroup M172 in the world. When one factors in the population of Iran, it may be one of the most populous countries of men bearing the mutation defining Haplogroup J2. But did Haplogroup J2 originate in Iran? This topic is far more complicated and most sources simply indicate its origin as the Northern Portion of the Fertile crescent which could include the northern Levant, Anatolia, Syria, Iraq or Iran. "
"Anatolia is most likely the source of this subclade in India, again consistent with the West to East flow of J2. The date of this invasion points to a period during or after the Neolithic era, and East west towards the levant in the historic times. "
"J2 lineage is also found in SW India with an interesting frequency trend: a higher fraction of J2 in the higher castes and decreasing amounts in lower castes."
"However , The sister clade of J2a4h1 - AKA -J2a4h2 (M158) (location under L24 uncertain) Found with low frequency in Turkey, South Asia, and Indochina."
"J2a4a (M47, M322) Found with low frequency in Georgia, southern Iran, Qatar,Saudi Arabia, Syria,Turkey,the UAE, India and Central Asia/Siberia."