Hello everyone,
I've read couple of plants genomics papers they use nucleotide diversity (π) ratio as ( π wild population/π cultivated population) with a sliding window to detect selection.
I know that diversity is affected by selection and of course many other processes, and that populations with lower nucleotide diversity are most likely under selection
I was reading a lot to understand why exactly ((( π wild/π cultivated ))) didn't really fine explanation of what's the reason of using wild population.
Thanks, :)
Nucleotide diversity (pi) values range between 1 (very diverse) and 0 (not diverse)
but then the pi ratio can be very small or very big based on the values you are dividing so for example if the pi of wild individual at a particular locus is 0.3 while the pi value for cultivated sample of that particular locus is 0.0006. Then the ratio would be (0.3/0.0006) = 500 (it is a high value) And that indicates that this region have been selected for.
Hanin Ahmed could you please let me know the source of information you mentioned above
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