Baradhada baradhada ee Colorado ayaa iska caabin u samaysay in ka badan 50 nooc oo cayayaan-dileyaal ah. Tani waxay ka dhigaysaa cayayaanka "cayayaan heer sare ah" oo waxyeello u geysta baradhada adduunka oo dhan.
Sida Eric Hamilton uu maqaal ugu qoray website-ka Jaamacadda Wisconsin-Madison, cilmi-baadhis cusub ayaa muujinaysa in duqsiyohu aad u adkeysi badan yahay sababta oo ah kala duwanaanshaha hidde-sideheeda.
Kala duwanaanshaha hidde-sidaha ee dadka cayayaanka ah iyo arsenal ee hiddo-wadaha iska caabbinta ee jira waxay u badan tahay inay siiyaan kuwa lamid ah iska caabin xooggan mustaqbalka. Laakiin fahamka cusub ee kheyraadka genomic ee cayayaanka ayaa ka caawin kara saynisyahannada horumarinta hababka xakamaynta cayayaanka.
Kooxda cilmi-baarista ee Jaamacadda Wisconsin-Madison isku xigxigay genome ee lamid ah Colorado baradho markii ugu horeysay sanadka 2018-ka. Tan iyo markaas, waxay wadeen raadinta genome-ga si ay u fahmaan sida cayayaanka uu u yeelan karo iska caabbinta cayayaanka cusub si degdeg ah. Si taas loo sameeyo, waxay isku xigxigeen dhowr darsin oo lamid ah dhammaan Maraykanka. Dadkan gobolku waxay ku kala duwan yihiin sunta cayayaanka ee ay u adkaystaan iyo asal ahaan.
Saynis yahanadu waxay ogaadeen in kooxahan kala duwan ee gobolku ay si degdeg ah u kobceen sababtoo ah dadwaynaha waalidkood waxay hore u haysteen kheyraadka hidda-socodka ee loo baahan yahay si ay u horumariyaan iska caabinta cayayaanka.
Horumarkan degdega ah, ee ku salaysan hodantinimada kala duwanaanshaha hidde ee jira, waxa uu khilaafayaa qaabkii hore ee kobaca, kaas oo u qaatay in isbeddellada dhifka ah ay si tartiib tartiib ah ugu dhacaan dadweynaha. Iyadoo isbedellada cusubi ay soo baxayaan lagana yaabo inay gacan ka geystaan iska caabinta cayayaanka, jawaabta degdega ah ee baradhada baradhada ee kiimikooyinka cusub ee qaybaha kala duwan ee dalka waxaa lagu sharxi karaa oo kaliya kala duwanaanshaha jira.
Uma badna in xittaa gebi ahaanba cusub oo cusub ay cayayaanku sii ilaalinayaan muddo dheer.