I have a blend of klotho gene variants that have been linked with a lower risk for coronary artery disease and stroke and an advantage in longevity.
We find all kinds of species that have taken up a second chromosome or a third one from somewhere, adding thousands of new traits in a second to that species. So, people who think of evolution as just one gene changing at a time have missed much of biology.
For each gene in your genome, you quite often get a different version of that gene from your father and a different version from your mother. We need to study these relationships across a very large number of people.
The gene 'klotho' was named after the Greek Fate purported to spin the thread of life, because it contributes to longevity.