Asayansi kwa nthawi yoyamba anaganiza bungwe genomes a ku Africa wakale

Asayansi anaganiza streamline ndi genomes wa anthu amene anakhalapo mu Africa kwa zaka zikwizikwi zapitazo, izi zidzathandiza kuunikira chiyambi wathu.

Za chiyambi cha phunziro analengeza sabata yatha pa msonkhano wapachaka wa Society kwa zamoyo ndi Evolution. Ofufuzawa anafufuza genomes a anthu 15 omwe anakhala 6000 zapitazo mu kum'mawa ndi kum'mwera Africa.

The zotsalira majini a ku Africa akale

Monga mukudziwa, Africa ndi malo kumene anthu anayamba kufalitsa padziko lonse pafupifupi 50,000 zapitazo. Malinga ndi magazini ya Science, m'dera lino, anthu alinso kwambiri chibadwa osiyanasiyana. Komabe, kufika apa zaka 2,000 zapitazo, anthu oyambirira, omwe ankadziwika ndi Bantu, amene ankachita ulimi, aononga kwambiri kuda ndi chibadwa cha Africa oyambirira m'chigawochi.

Kuyambira pamenepo, asayansi akwanitsa kuti ndondomeko jini yekhayo wa ku Africa wakale - Aitiopiya, amene m'badwo zaka 4500. Tsopano Ponto Skoglund ku University Harvard anasonkhanitsa DNA a ku Africa 15 amene ankakhala ku zaka 500 6000 zapitazo.

Mavuto kuphunzira DNA

Magazini ya Nature limanena kuti DNA wakale African zovuta kuphunzira chifukwa chakuti unakhalabe mchikakamizo cha nyengo zoipa dziko. Komanso, kuchuluka kutentha Iyamba kuwononga ndondomeko DNA. Komabe, ofufuza zinali akhoza kuphunzira zambiri za m'mbuyomu a Africa, chifukwa kuwonongedwa kwa kuipitsidwa ndi Kupezeka kwa kakang'ono mafupa mkati khutu, amene wakale DNA bwino anasunga.

The zotsatira za ntchito asayansi

Zotsatira kuyambirira kuphunzira amasonyeza kuti anthu oyambirira anayenda kudutsa Africa kwambiri kuposa asayansi ankaganizira poyamba. Mwachitsanzo, zikuoneka kuti South Africa akhoza secede ku Western angapo zaka zikwi zapitazo.

Phunziro lachiwiri, wochitidwa ndi Carina Schlebusch ku University Uppsala ku Sweden, akuphunzira Baibulo ndi DNA a ku Africa wakale. Asayansi apeza kuti genomes alimi ano African munali DNA Bantu.

ana General

Komanso kale sabata ino panali kafukufuku wina, lomwe limasonyeza kuti anthu ndi akalewa mwina kucheza kuposa 270 zikwi zapitazo. Zimene anapezazi kujambula chidwi latsopano ndi mmene mitundu wathu kucheza.

"Ndi phunziro lililonse latsopano, ndife kuzindikira bwino kuti mbiri zinachokera anthu masiku ano chachikale chinkawavuta kunali kovuta kwambiri kuposa ife tinkaganiza zaka 10 zapitazo," - anati Co-wolemba Fernando Rasim wa Center Phunziro la a genomes ku New York. Awa ndi anapezazo yapita kutsimikizira kamodzinso kuganiza kuti ambiri a anthu akale idakulu wamba.