The DNA of the Sardinians

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Sardegna leggendaria View gallery (35 photos)

The DNA of the Sardinians sent on April 24, 2022 (0:19) by Emmegiu. 54 comments, 1534 views.

, 1/250 f/5.6, ISO 125, hand held.

Grazie agli studi compiuti da un gruppo di ricercatori internazionali pubblicato dalla prestigiosa rivista scientifica Molecular Biology Evolution, ora sappiamo che la Sardegna ha accolto genti arrivate dall'Oriente e dall'Occidente e che questo è avvenuto prima del Neolitico, nel Mesolitico, subito dopo l'epoca glaciale. Gli archeologi avevano già formulato tale ipotesi e le ultime ricerche confermano i loro studi come già aveva fatto la ricerca condotta da Paolo Francalacci e pubblicata su Science nel 2013. Il popolo sardo ha, quindi, nel suo patrimonio genetico caratteri sia orientali che occidentali. Ma ciò che appare ancora più interessante e che questa eredità si è conservata per millenni fino a giungere a noi con alcune caratteristiche immutate rendendo il DNA dei sardi unico. La ricostruzione di questo è stata possibile grazie a studi sul DNA antico che, con l'ausilio della biologia molecolare e della genetica evoluzionistica, ha permesso di accertare le origini dei sardi. La ricerca è stata condotta comparando il DNA dei Sardi attuali con quello dei sardi antichi ed anche con genomi di uomini moderni e antichi non sardi. Il lavoro ha richiesto l'analisi di un numero grandissimo di dati: 3491 campioni di DNA appartenenti a sardi moderni, 21 appartenenti a sardi antichi ( DNA estratto da campioni raccolti in siti archeologici datati da 4 a 6 mila anni fa), comparati con 50.000 genomi di uomini moderni e 500 antichi, tra cui vi era anche il DNA appartenente ad Ötzi. I risultati ottenuti da questo importante lavoro ci rivelano che la popolazione Sarda ha un patrimonio genetico unico con delle caratteristiche non riscontrabili in altre popolazioni europee. I risultati evidenziano che la Sardegna rappresenta un'anomalia nel panorama genetico europeo, e per più di un motivo. I ricercatori hanno scoperto che nel DNA dei sardi vi è una percentuale che va dal 3 al 5 per cento di eredità genetica lasciata da popoli che hanno abitato in l'Isola e vi siano giunti circa 8000/10.000 anni fa in un periodo antecedente alla introduzione dell'agricoltura in Sardegna. Si ipotizza anche che vi siano nel genoma dei sardi caratteristiche uniche ed appartenenti ai primi abitanti dell'isola residenti prima del Neolitico. Inoltre il 78,4 per cento del DNA estratto dai mitocondri dei sardi moderni appartiene a rami genetici che non si riscontrano in altre zone geografiche europee ma sono unicamente isolani. Si sono potuti classificare i genomi mitocondriali dei sardi in 89 gruppi genetici (aplogruppi) e mettere in evidenza caratteristiche genetiche, risalenti al neolitico che si sono conservate attraversando il periodi nel nuragico, post nuragico fino ad essere presenti ancora ora.

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129 persons like it: 1niko, Adam Dabrowski, Agata Arezzo, Alberto Gaddi, Alberto Tirri, Albieri Sergio, Alessandro Morini, Alessandro57, Alexblusky75, Amirkhani, Andrea Barlotti, Andrea Bergamo, Andrea Costaguta, Andreacarta, Angelo.s, Annalisax, Antonio Dell'Aquila, Antonio Fabbian, Ardos, Aringhe Blu, Arrigo2, Aznavour65, Bacna, Bal, Bruno_pratico, Carlo Alfonso, Carlo Girola, Cesare Brachetti, Cingotti.g, Ciriaco Capobianco, Claudio Cozzani, Claudio Ricci, Claudio Sciarra, Coradocon, Daniele Origgi, Davide 70, Decris, Diodato Campagna, Eddie6630, Edecapitani, Emilio Paolo, Eraldo Brunettin, Errekappa, Eva Green, Federico56, Fernando Deligia, ForeverYoung, Francesco_s, Gabriele Algranti, Gazebo, Gefa, Giancarlo Anfossi, Giancarlo65, Ginolimbianchino, Giordano Giacomo, Giorgio Bertoletti, Giorgio Occhipinti, Gios, Giovanni Azzi, Giovanni e Davide, Giovanni Rabolini, Green is the colour, Hunter75, Indaco, Jeant, Jooferr, Kean40, Livio Frega, Loribert, Lorisb, Lucycor, Lukeskywalker, Lupo Manulo, Madmax72, Mamaroby, Marco434, Marisa194, Maryas, Massimo-80, Mat58, Maurizio Barina, Mauriziop, Miche74, Monitor, Mspinetti, NadiaB, Nickclick50, Nicola1201, Nonnachecca, Norvegia04, Oleg Tsapko, Omero, P.a.t 62, Pada, Palmieri Raimondo, Paolo Macis, Paolo P, Parsifal64, Patrizio Rigobello, Pietro Papini, Pinitti, Pippo Frisu, Quellolà, Renatoxr, Renzo Barbetta, Rino Orlandi, Roberto Degli Uomini, RobertoTR, Robertozan, Rosario Cafiso, Silvio Maccario, Simoneperi1967, Soriana, Stearm, Stefania Saffioti, Stefano Marangoni, Stefano Vezzani, Stefano.al, Supercecc56, Teogot, TheBlackbird, Tobé, Toninogiorgi, Umbi54, Valmic, Vincenzo De Paola, Vincenzo56, Vito Serra, Werner

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Claudio Cozzani

sent on April 24, 2022 (0:22) | This comment has been automatically translated (show/hide original)

Mamma mia Giuseppe is so much that I miss but ...
how you aged :-D
octtimo portrait and interesting caption
soon my friend :-P

Pinitti

sent on April 24, 2022 (0:27) | This comment has been automatically translated (show/hide original)

You are strong and tough people and this one you have so well portrayed shows it in full, hello dear Joseph.

Lorisb

sent on April 24, 2022 (1:00) | This comment has been automatically translated (show/hide original)

Your wonderful island has guarded you, has protected you since the times of time and studies are showing that DNA reigns for more than five thousand years in your land, so as to be among the longest-lived in the world :-P
Beautiful this portrait in typical Sardinian costume, I also really like the b.n. that enhances the pride of the look 8-)
Congratulations Giuseppe an excellent documentary work :-)
Best regards, Loris

Fernando Deligia

sent on April 24, 2022 (1:06) | This comment has been automatically translated (show/hide original)

Sardinia, magical land, strong soul, proud and proud people. Great beautiful character, excellent close-up. Many compliments Giuseppe.
A hug, ajò fortza paris ;-)

Stearm

sent on April 24, 2022 (1:25) | This comment has been automatically translated (show/hide original)

Beautiful and very interesting caption
And then I see that Noah has preserved very well ;-) ..... really extraordinary portrait of this character ;-) a look that goes beyond the day of time ;-)
Congratulations Joseph ;-) you always know how to amaze ;-)

Carlo Alfonso

sent on April 24, 2022 (7:03) | This comment has been automatically translated (show/hide original)

Excellent DNA :-) All the pride of this people condensed in this fantastic portrait 8-)
Ajòooooo, Charles

Livio Frega

sent on April 24, 2022 (7:04) | This comment has been automatically translated (show/hide original)

Beautiful portrait and story ... I have always thought that the Sardinian people were special, today even science
confirms it.
A warm greeting, Livio

Lucycor

sent on April 24, 2022 (7:21) | This comment has been automatically translated (show/hide original)

Portrait of great beauty and intensity..
I find it extraordinary!! Caption as always perfect and exhaustive .. Bravissimo Giuseppe :-)
Greetings and happy Sunday, Lucia.

Giovanni Rabolini

sent on April 24, 2022 (7:44) | This comment has been automatically translated (show/hide original)

Beautiful portrait, many compliments for the interesting caption.
Have a good Sunday.
Greetings John

Edecapitani

sent on April 24, 2022 (7:44) | This comment has been translated

Marvelous photo!

Marco434

sent on April 24, 2022 (7:55) | This comment has been automatically translated (show/hide original)

A portrait that strikes, sincere congratulations
Hello
Marco

Rosario Cafiso

sent on April 24, 2022 (9:45) | This comment has been automatically translated (show/hide original)

Proud and tough people Sardo.Il your shot proves it ... beautiful portrait and the caption confirms it dear friend :-P A good Sunday and a good April 25th! Hello Rosario

Alessandro Morini

sent on April 24, 2022 (10:01) | This comment has been automatically translated (show/hide original)

Giuseppe I find a certain similarity in this shot.
The face carved in the stick seems to be your ancestor, you look like him :-D :-P
This shows that you come from afar .....!!
This man portrayed more than a Sardinian I approach him to a Greek Orthodox religious!!
The portrait and the character are beyond my beautiful jokes!!
Greetings from one who has a DNA at the moment unknown!!

Gabriele Algranti

sent on April 24, 2022 (10:21) | This comment has been automatically translated (show/hide original)

The pride of the look, the posture are the perfect synthesis of what you have given us in the explanation to the image.
I also find that the photograph is masterfully made! You are truly a great photographer and a well of knowledge! Thank you

Giorgio Occhipinti

sent on April 24, 2022 (10:38) | This comment has been automatically translated (show/hide original)

My compliments Giuseppe, magnificent portrait accompanied by an interesting caption!
Happy Sunday and happy April 25th.
Giorgio

Daniele Origgi

sent on April 24, 2022 (11:51) | This comment has been automatically translated (show/hide original)

Congratulations Giuseppe. Happy Sunday

Marisa194

sent on April 24, 2022 (12:14) | This comment has been automatically translated (show/hide original)

Great portrait! Interesting caption!
Happy Sunday!
Marisa

Roberto Degli Uomini

sent on April 24, 2022 (12:21) | This comment has been automatically translated (show/hide original)

Great portrait, congratulations!

HelloRoberto

Nicola1201

sent on April 24, 2022 (13:47) | This comment has been automatically translated (show/hide original)

Beautiful portrait and excellent black and white.
congratulations.
Nicholas

Arrigo2

sent on April 24, 2022 (14:18) | This comment has been automatically translated (show/hide original)

An icon of your land, very interesting the caption that gives value to the most
mistreated island of Italy :-P

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