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Publication of a report on the genealogy of 13 million people and its results
The New York Genome Center has prepared a genealogy that shows the kinship of 13 million people, reaching 65 generations. Research by the researchers of this center shows that good genes have little effect on prolonging life.
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This is the world’s largest genealogy and the oldest ancestors recorded in it lived nearly 500 years ago.
The names of about 13 million people are mentioned in this genealogy and all of them are related to each other in some way. This number is more than the population of Belgium.
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On average, it is possible to trace the kinship ratio of each family up to eleven generations ago in this genealogy. Most of the people whose names appear in this genealogy are from America and Europe. Many families have the experience of immigrating to another country. The said research was published on the first day of March in the specialized journal Science.
Creating a database by beginners
To prepare the genealogy, a team of American and Israeli researchers led by Joanna Kaplanis from the New York Genome Center has researched a lot of data. In total, this team has reviewed the profiles of 86 million genealogy enthusiasts who provided information about themselves to the GENi genealogy website. The data of 13 million people have been used to create the genealogy. There are currently 110 million profiles available on GENi.
The researchers examined the dates of birth, marriage and death of individuals. In order to find the common ancestors of all the 13 million mentioned people, they had to follow the genealogy up to 65 generations ago.
Changing the place of residence of women after marriage
The mentioned genealogy reveals many secrets. Humans were not very active on the eve of the new era. Until 1750, most Americans found their spouses within ten kilometers of their homes. Until 1850, some Americans even married a distant relative.
Those born after 1950 were more interested in traveling. Their wives lived an average of one hundred kilometers away from them.
Usually, women changed their place of residence. Instead, when men were forced to migrate, they traveled to more distant places.
Limited influence of good genes on longevity
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The researchers also concluded that gene is not the only factor that plays a role in having a long life, but its role in this relationship is small. To investigate this, they examined data on three million people who were related to each other and were born between 1600 and 1910.
The comparison of families showed that in 16% of cases, genes played an important role in having a long life. Until now, it was thought that genes play a role in this case up to 30%. Researchers say that a good gene can extend a person’s life by 5 years on average.
Yaniz Ehrlich, one of the authors of the researchers’ report, says that this amount is not high.
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He adds: “Other studies have shown that, for example, smoking can shorten life by ten years. That is, some of the decisions we make in life play a more important role in our lifetime than what genes we have.”
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This post is written by thesiss