Transposable elements, contributors in the evolution of organisms (from an arms race to a source of raw materials)

Heliyon

Seyedhossein Hekmatimoghaddam¹  Fatemeh Pourrajab² 

[1] Department of Biochemistry and Molecular Biology, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran;Nutrition and Food Security Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran;

关键词: Transposable elements;    Genomes;    Species evolution;    Non-coding RNAs;   

DOI  :  

来源: DOAJ

【 摘 要 】

There is a concept proposing that the primitive lineages of prokaryotes, eukaryotes, and viruses emerged from the primordial pool of primitive genetic elements. In this genetic pool, transposable elements (TEs) became a source of raw material for primitive genomes, tools of genetic innovation, and ancestors of modern genes (e.g. ncRNAs, tRNAs, and rRNAs). TEs contributed directly to the genome evolution of three forms of life on the earth. TEs now appear as tools that were used to giving rise to sexual dimorphism and sex determination, lineage-specific expression of genes and tissue differentiation and finally genome stability and lifespan determination.

【 授权许可】

Unknown