Another national genome

The Irishman's genome has been deciphered for the first time<url>
Scientists have deciphered the genome of an Irishman for the first time.

The article presenting the results of the work has been accepted for publication in the journal Genome Biology. New Scientist (First Irish genome sequenced) writes briefly about the results of the study.

Experts used the DNA of a man whose nationality had previously been determined by genetic tests (representatives of different ethnic groups carry a number of characteristic features in their DNA). In total, scientists have read each "letter" of DNA (they are called nucleotides) 11 times – this is a fairly high degree of reliability.

Scientists have found many characteristic features in the Irishman's DNA – in particular, they found about 200 thousand inserts or drops of nucleotides, as well as about 3 million so–called single nucleotide polymorphisms, single nucleotide polymorphism - SNP; in Russian literature, the term snip is used.

(All these inserts, dropouts and snips are most likely differences from the "standard", the world's first complete genome – VM.)

Snip is a mutation in the genome that affects only one "letter". Currently, scientists have compiled huge databases of snips, since these changes in DNA are often associated with certain diseases or ethnic characteristics. It is by focusing on single-nucleotide polymorphisms that researchers determine the evolutionary history of peoples.

Since scientists have learned to quickly and relatively inexpensively determine genome-wide sequences, several "national genomes" have been deciphered. So, the researchers determined the complete DNA sequence of an Asian and an African. At the end of 2009, Russian specialists announced the completion of the decoding of the Russian genome.

Portal "Eternal youth" http://vechnayamolodost.ru09.09.2010