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Population genetics is a subfield of genetics that deals with genetic differences within and among populations, and is a part of evolutionary biology. Studies in this branch of biology examine such phenomena as adaptation , speciation , and population structure .
The history of genetics dates from the classical era with contributions by Pythagoras, ... mathematicians developed the statistical framework of population genetics, ...
The model can be used to produce many theoretical genealogies, and then compare observed data to these simulations to test assumptions about the demographic history of a population. Coalescent theory can be used to make inferences about population genetic parameters, such as migration, population size and recombination.
1913: Alfred Sturtevant makes the first genetic map, [15] showing that chromosomes contain linearly arranged genes. 1918: Ronald Fisher publishes "The Correlation Between Relatives on the Supposition of Mendelian Inheritance" the modern synthesis of genetics and evolutionary biology starts. See population genetics.
An early event in the modern synthesis was R. A. Fisher's 1918 paper on mathematical population genetics, though William Bateson, and separately Udny Yule, had already started to show how Mendelian genetics could work in evolution in 1902.
Population genomics is the large-scale comparison of DNA sequences of populations. Population genomics is a neologism that is associated with population genetics.Population genomics studies genome-wide effects to improve our understanding of microevolution so that we may learn the phylogenetic history and demography of a population.
Rogers is best known for his work in population genetics, much of which uses genetic data to study the history of populations. [ 3 ] [ 4 ] He has also contributed to the theory of cultural evolution , [ 5 ] to life history theory , and to economic theory on the interest rate .
Genetic drift therefore probably played a significant role in shaping the patterns of genetic variation observed in southern Indian tribal populations. Otherwise, analyses of population relationships showed that all Indian and South Asian populations are still similar to one another, regardless of phenotypic characteristics, and do not show any ...