All putsoa-eyed batho ba kopantsoe ke ntho e le nngwe

Ho na le ke khopolo ea hore 'mala o moputsoa-eyed batho ba na le moholo-holo a. Ba ke European boholo-holo, bao lilemo ke tse tšeletseng ho ba likete tse leshome lilemo. O ne a ile a fumana e itseng fetola liphatsa tsa lefutso, ka lebaka la tseo ho ne ho penta e 'ngoe ea iris e ho.

Seo kopanyang kakaretso putsoa-eyed

Qalong, batho bohle ba ne ba sootho-eyed. Leha ho le joalo, liphetoho tse liphatsa tsa lefutso, ho akarelletsa le tse amanang le liphatsa tsa lefutso OCA2, ile ea etsa hore ho hlaha ha shades tse sa tšoaneng tsa sootho. E Thehiloe ho ya data tsena, bafuputsi ba ne ba leka ho fumana mohloli oa pigment, e leng boikarabelo ba ho mahlo a maputsoa ka phatsa ea lefutso OCA2, empa ho ile ha pala.

Bo-rasaense ba sa tsoa ile a etsa sibolloa ka: sesosa sa batho ba 'mala o moputsoa-eyed itšetlehile ka HERC2 boahelani liphetoho liphatseng tsa lefutso phatsa ea lefutso. Ke OCA2 phatsa ea lefutso e etsang qeto ea hore chelete e ea melanin (sootho pigment), ha ho na le phello e coloration ea iris e ho putsoa. Bo-rasaense ba lumela hore phetoho liphatseng tsa lefutso ena ea pele e hlahile ha ho ne ho le boima ho falla ha batho ba tsoang Afrika le Europe. Khoneha ho fana ka maikutlo a hore batho ba nang le mahlo a 'mala o moputsoa - litloholo tsa Europe ba neng ba phela mehleng ea boholo-holo.

khopolo ena e tiisoa ke 'nete ea hore e mong le e putsoa-eyed batho ba na le phetoho liphatseng tsa lefutso e tšoanang. Ha ho senola botho ba hore moholo-holo a.

Archaeologists fumane masapo ka North ea Spain, ea neng a mahlo a 'mala o moputsoa. Age masapo - lilemo tse 7000. Ha ho pelaelo hore mahlo ho ile ha fumanoa, empa and analysis liphatsa tsa lefutso paka hore ho na le phetoho liphatseng tsa lefutso hore le iris e penta putsoa.