Question: What is the exact difference between "Balancing Selection" and "Positive Selection"?
0
gravatar for Shangzhe Zhang
3 months ago by
China
Shangzhe Zhang0 wrote:

Hi,

It's so confusing that what is the exact difference between "Balancing Selection" and "Positive Selection".

I want to look for the ancient pholymorphism or the ancient balancing selecting genes from the properties of genomic islands. After see some relative papers, I don't know how to do with this. So any suggestions?

Shangzhe.

snp genome gene • 178 views
ADD COMMENTlink modified 3 months ago by Jean-Karim Heriche15k • written 3 months ago by Shangzhe Zhang0
0
gravatar for Jean-Karim Heriche
3 months ago by
EMBL Heidelberg, Germany
Jean-Karim Heriche15k wrote:

Balancing selection refers to processes that result in maintaining multiple alleles at frequencies different from what would be expected from a neutral model of selection. You can think of it as selecting an allelic compromise between multiple constraints. Positive selection is what people often mean by selection, i.e. the process resulting in an increase in the frequency of the allele that increases fitness.
This paper may be of interest.

ADD COMMENTlink written 3 months ago by Jean-Karim Heriche15k

Dear Jean-Karim Heriche ,

Thanks a lot. It's helpful.

Best, Shangzhe.

ADD REPLYlink written 3 months ago by Shangzhe Zhang0
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