Preliminary analysis of polymorphism of TLR genes presented at 50th Population Genetics Group in Cambrige.
TLRs in bank voles differed a lot in the level of polymorphism, from least diverse TLR7 (only 3 SNPs per 1kB) to most diverse TLR2 (over 25 SNPs per 1kB). So far, there is no evidence for an uniform pattern of selection acting on TLRs, and while some TLRs evolve under purifying selection while others are rather under positive selection.

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