- “L1 marker is predominant in Tamils and to some extant in Marathas, with the most prevalent presence in Tamil middle castes like Vellalars, Vanniyars, Ambalavasis and the like. It is low or absent in most of the Dravidian tribal groups outside Tamil Nad, though it is present in Brahmins in the Tamil region. It is also peculiarly found in Balochistan and Makran but low in the Brahui speakers. " [MT5]
- “Kallars, a middle level warrior Tamil caste, has up to 50% L1 markers. L1 haplogroup is also found in the Yadava caste, a group of cowherds from from the Andhra country (the clan of the famous cowherd hero kATaM rAju) show about 19%, Kammas of Andhra 17%, so also the Sinhalese show about 17% of it. " [M0512]
- “L1 which is restricted to Tamil population but seen across caste boundaries albeit with the greatest presence in the middle-low castes is interpreted as not being spread by the Dravidians. As most Dravidian tribals have it lower levels and it is absent in Dravidians outside Tamilnad we specifically see at the haplogroup expanded by the proto-Tamil cultural rennaisance, probably archaeologically corresponding to the expansion of the Megalithic (neDukkal/vira-kal) culture. This appears to have expanded from the middle of the peninsular India somewhat Northwards to coastal Pakistan and Makran and of course its main center was the Tamil country. This expansion possibly also bore with it the H1 marker, further driving it up the caste hierarchy.” [MT5]
- “We suspect that the Tamil upper castes absorbed native priests as kurukals and the like that resulted in the influx of L1 into their ranks.”[MT5]
- “The later point is illustrated by the fact that in Brahmins of Tamil Nad, Andhra and Maharashtra (the Konkanastha Brahmins) the L1 haplogroup is seen in 10-13% frequency. Most interestingly, the Saurashtrans who are an immigrant group into Tamil Nad from the Gujarat-Maharastra zone show upto 25% frequency of the L1 marker. This is in fact in contrast to the overall level of L1 in Gujarat being around 10% (Albeit a relatively small sample of 29 males), and in general in Maharashtran upper and middle castes around 10-11%. Thus, despite retaining their unique language of the Indo-Aryan family, the Saurashtrans have acquired a considerable component from the Tamil gene pool (lower bound of 15%). This suggests that even the rather insulated Saurashtrian jAti was genetically porous to a certain degree. Probably the Saurashtran jAti’s tight connection with certain professional guilds strongly preserved its language while letting people in.” [M0512]