01-22-2006, 01:16 PM
மேலும்குருவி தந்த இணைப்பில் என்ன சொல்லி இருக்கு எண்டு வடிவா வாசிய்ங்கோ,இந்த ஆராச்சி எண்டு சொல்லப் படுவதன் உண்மைத் தன்மை அறிய.
The finding disputes a long-held theory that a large invasion of central Asians, traveling through a northwest Indian corridor, shaped the language, culture, and gene pool of many modern Indians within the past 10,000 years.
That theory is bolstered by the presence of Indo-European languages in India, the archaeological record, and historic sources such as the Rig Veda, an early Indian religious text.
Some previous genetic studies have also supported the concept.
But Kashyap's findings, published in the current issue of the Proceedings of the National Academies of Science, stand at odds with those results.
Peter Underhill, a research scientist at the Stanford University School of Medicine's department of genetics, says he harbors no doubts that Indo-European speakers did move into India. But he agrees with Kashyap that their genetic contribution appears small.
"It doesn't look like there was a massive flow of genes that came in a few thousand years ago," he said. "Clearly people came in to India and brought their culture, language, and some genes."
"But I think that the genetic impact of those people was minor," he added. "You'd don't really see an equivalent genetic replacement the way that you do with the language replacement."
The finding disputes a long-held theory that a large invasion of central Asians, traveling through a northwest Indian corridor, shaped the language, culture, and gene pool of many modern Indians within the past 10,000 years.
That theory is bolstered by the presence of Indo-European languages in India, the archaeological record, and historic sources such as the Rig Veda, an early Indian religious text.
Some previous genetic studies have also supported the concept.
But Kashyap's findings, published in the current issue of the Proceedings of the National Academies of Science, stand at odds with those results.
Peter Underhill, a research scientist at the Stanford University School of Medicine's department of genetics, says he harbors no doubts that Indo-European speakers did move into India. But he agrees with Kashyap that their genetic contribution appears small.
"It doesn't look like there was a massive flow of genes that came in a few thousand years ago," he said. "Clearly people came in to India and brought their culture, language, and some genes."
"But I think that the genetic impact of those people was minor," he added. "You'd don't really see an equivalent genetic replacement the way that you do with the language replacement."