November 28, 2022

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We have learned the secrets of mammalian evolution.  Scientists have made a great discovery

We have learned the secrets of mammalian evolution. Scientists have made a great discovery

Scientists have made an elaborate attempt to reconstruct the genomes of Morganukodont, one of the first mammals in Earth’s history. They were able to do this thanks to the genome samples from 32 species of modern animals. According to researchers’ assertions The discovery could provide not only an understanding of the evolution process, but also practical help in protecting species on Earth.

Morganukodont lived about 200 million years ago, when the first dinosaurs appeared on Earth. It is considered one of the first mammals in history, which gave rise to, among other things, our species.

How was it possible to reconstruct the genomic organization of a long-extinct animal? His descendants, whom we can meet on this planet today, came to their rescue. Scientists take genome samples 32 Species, starting with humans and chimpanzees, passing through rabbits, rhinos, bats and ending with alligators and chickens as comparison groups.

The key to the search was to find Does this mixture of genomes from different animals have any points in common?. What is common in the genetics of chimpanzees and rhinos must come from one lineage of the ancestors of modern mammals, and therefore must belong to the Morganukodont.

And as the research showed, Up to 1215 gene groups with the same order are found on the same chromosome. The researchers suggest that this is evidence of gene stability in animal evolution over a period even longer than the appearance of the first mammals on Earth.

The authors of the research note that they can contribute to an overall increase in knowledge about evolutionary processes. First of all, we are talking about the father. Learn how selection in chromosomal evolution affected the growth of the entire mammalian family tree.

These studies, as it were, are an opportunity to understand the multimillion-dollar nuances of genetics that have led to the fact that today mammals dominate the planet. But more importantly, it can give you an idea of ​​why There was such a big difference between mammalsThey can develop into animals such as dogs and cats, as well as whales and bats. This might also be an opportunity for us Measures to protect certain species of endangered animals.

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