Genetik analizlər insanların Afrikadan çıxarkən Misirdən keçdiyini göstərir

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Misir və Efiopiyada yaşayan insanlar üzərində edilən genomu analizləri, Avrasyalıların ataları olan erkən Afrikalıların, Afrikanın şimalından Misiri keçərək dünyaya yayıldığını ortaya atır. Tapıntılar, uzun müddətdir müzakirə mövzusu olan erkən insanların Misirdənmi yoxsa Efiopiyadanmi Afrikanın kənarına çıxdığı sualına cavab təklif edir.

 

Müasir Avrasyalıların atalarının 60,000 il əvvəl Afrikadan çıxarkən izlədikləri köç yolunu təsbit edə bilmək üçün elm adamlarından ibarət olan beynəlxalq bir araşdırma qrupu müasir Şimali Afrikalı qruplardan (100 Misirli və beş fərqli Efiopiya xalqından 25 adam) 225 adamın bütün genomlarını analiz etdilər.Əvvəlki bir araşdırmada, elm adamları tərəfindən Müasir Afrika cəmiyyətlərinə Qərbi Asiya üzərindən gələn gen axışı təyin olunmuşdu və bu genləri araşdırmdan kənar saxladılar. Misirli nümunələrin qalan genomlarının Efiopiyalılarınkına görə Afrika xaricindəki insanlara daha yaxın olduğu müşahidə edilir. Bu da Afrikadan çıxan dəstənin Misirdən keçmiş olması ehtimalının yüksək olduğuna işarə edir.

 

Kembric Universitetindən Dr. Luca Pagani, “Daha əvvəl tövsiyyə edilmiş iki coğrafi marşrutu: Misir və Sina yarımadası üzərindən çıxış ilə Efiopiyadan Babülməndəb boğazından keçərək Ərəb yarımadası vasitəsilə çıxışdır.” deyir. Araşdırmacılar ayrıca yüksək keyfiyyətli genomları istifadə edərək cəmiyyətlərin bir-birlərindən nə zaman ayrıldıqlarını ölçdülər: Afrika xaricindəki insanların misirlilərdən ayrılma müddətinin Efiopiyalılara görə daha yaxın bir tarixdə (55,000 ilə qarşılıq 65,000 il) olduğunu ölçdülər. Bu da dəstənin Misirdən keçdiyi fikrini dəstəkləyir.

 

American Journal of Human Genetics (Amerika İnsan genetikası Jurnalı) adlı akademik jurnalda nəşr olunan məqalənin qabaqcıl müəllifi olan Dr. Pagani “araşdırmamızda, Şimal-şərqi Afrikalılardan əldə edilən məlumatlar üzərində edilmiş olan ilk geniş əhatəli obyektiv işi yaratdıq. Son köçləri nəzarət etdikdən sonra Misirlilər və Avrasyalılar arasında, Efiopyalılarla Avrasyalılar arasında olandan daha çox genetik bənzərlik olduğunu təyin etdik. Bu da Misirin, Avrasyalıların atalarının Afrikadan çıxarkən son dayanacaq olduğu fikrini dəstəkləyir. “demişdir.

 

Əlavə olaraq, Dr. Pagani və işin digər müəllifləri Misirlilərin və Efiopiyalıların Genom müxtəlifliklərinə dair xalqa açıq bir katoloq inkişaf etdirdilər.

 

Dr. Pagani bu mövzuda, “Bu məlumatlar pulsuz olaraq əldə edilə biləcək və gələcək tibbi və antropoloji işlərdə fayda təmin edə bilər.”demişdir.

 

Qaynaqlarla oxuma;

1) sci-news

2) New Scientist

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