C Asia and Pakistan contains r1b1b1 which is a sister clade of the western R1b1b2. R1b expansion is probably over the Caspian with subsequent migration into Anatolia via the Caucasus and into Europe along both coasts of the Black Sea:
<!--QuoteBegin-->QUOTE<!--QuoteEBegin-->Variations of R1b Ydna in Europe: Distribution and Origins
A.A.Foster. 13 March, 2005.
..
Complete R1b data from the "YHRD" database, indicated that, after an earlier existence in Asian Khazakstan, all European variants of R1b shared an existence in Russia ( in the region of Kazan, on the Volga river at about 55° North and 50° East), and that, later they separated and expanded into two major migrations ( a westward migration to the Russian-Baltic region, and a south-western migration to the Black Sea area and then further, westwards, to the Alpine-South German region). Eventually, a North Sea-Baltic migration evolved from the Russian-Baltic expansion; and an Atlantic migration evolved from the Alpine-South German variant.
..
Research showed that the greatest diversity of R1b's DYS 390 locus is within the Russian-Baltic region. The data suggested that the Russian-Baltic variant migrated/expanded from the Kazan region of Russia westwards to Moscow, and then to the Baltic States of Finland, Estonia, Lithuania, Latvia & Poland.
In this Baltic-Russian area, a sample of 159 haplotypes showed the R1b DYS390 percentages to be:
..
Baltic--Russian R1b:
Diversity:    68.6% (²)
--
North Sea-Baltic R1b:
Diversity:    61.5% (²)
--
Alpine-South German R1b:
Diversity:   55.7% (²)
--
Atlantic R1b:
Diversity:    46.1% (²)<!--QuoteEnd--><!--QuoteEEnd-->
R1a followed in its footsteps.
<!--QuoteBegin-->QUOTE<!--QuoteEBegin-->Variations of R1b Ydna in Europe: Distribution and Origins
A.A.Foster. 13 March, 2005.
..
Complete R1b data from the "YHRD" database, indicated that, after an earlier existence in Asian Khazakstan, all European variants of R1b shared an existence in Russia ( in the region of Kazan, on the Volga river at about 55° North and 50° East), and that, later they separated and expanded into two major migrations ( a westward migration to the Russian-Baltic region, and a south-western migration to the Black Sea area and then further, westwards, to the Alpine-South German region). Eventually, a North Sea-Baltic migration evolved from the Russian-Baltic expansion; and an Atlantic migration evolved from the Alpine-South German variant.
..
Research showed that the greatest diversity of R1b's DYS 390 locus is within the Russian-Baltic region. The data suggested that the Russian-Baltic variant migrated/expanded from the Kazan region of Russia westwards to Moscow, and then to the Baltic States of Finland, Estonia, Lithuania, Latvia & Poland.
In this Baltic-Russian area, a sample of 159 haplotypes showed the R1b DYS390 percentages to be:
..
Baltic--Russian R1b:
Diversity:    68.6% (²)
--
North Sea-Baltic R1b:
Diversity:    61.5% (²)
--
Alpine-South German R1b:
Diversity:   55.7% (²)
--
Atlantic R1b:
Diversity:    46.1% (²)<!--QuoteEnd--><!--QuoteEEnd-->
R1a followed in its footsteps.