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Genes invest you with unique facial identity
Saturday September 15, 2012 09:13:42 AM,
IANS
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Amsterdam: Scientists
have isolated genes that shape our facial form and structure,
besides explaining why twins and siblings have more similar faces
than unrelated people.
This study, carried out on behalf of the International Visible
Trait Genetics (VisiGen) Consortium, used head magnetic resonance
images together with portrait photographs to map facial landmarks.
Researchers from the Erasmus University Medical Centre, Rotterdam,
then applied a genome-wide association (GWA) approach, with
independent replication, to finding DNA variants involved in
facial shapes in almost 10,000 individuals, the journal Public
Library of Science reports.
One of the three of the five genes identified was reported to be
involved in facial morphology (form and structure) in a study on
children published earlier this year. The remaining two genes
potentially represent completely new players in the molecular
networks governing facial development, according to an Erasmus
statement.
Manfred Kayser, professor from the Erasmus University Medical
Centre, Rotterdam, who led the study, said: "These are exciting
first results that mark the beginning of the genetic understanding
of human facial morphology."
"Perhaps some time it will be possible to draw a phantom portrait
of a person solely from his or her DNA left behind, which provides
interesting applications such as in forensics. We already can
predict from DNA certain eye and hair colours with quite high
accuracies," concluded Kayser.
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