Sentences with phrase «accumulated genetic difference»
The extent of accumulated genetic difference enabled the researchers to speculate about when the different populations separated.
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According to Dr. Philip Awadalla, senior author and principal investigator, «the fact that two very close populations (French versus French Canadians) accumulate such an excess of differences in rare variants has important consequences in the design of genetic studies, including the identification of possibly damaging mutations associated with diseases specific to this population.»
That in turn would allow genetic differences to accumulate between groups with different song preferences and eventually lead to the creation of new species.
Had they stayed separated longer, they would have naturally accumulated too many genetic differences to mate successfully.
The researchers measured the rate at which genetic differences accumulated between populations in each of the 173 bird species.
The team, including researchers from the Natural History Museum in London, quantified the anatomical and genetic differences between living animals, and established a timeframe over which those differences accumulated with the help of the fossil record and intricate mathematical models.