المؤلفون: Hellsten, Uffe, Aspden, Julie L, Rio, Donald C, Rokhsar, Daniel S

المصدر: Nature Communications. 2(1)

مصطلحات موضوعية: Human Genome, Genetics, Generic health relevance, Animals, Base Sequence, Cell Line, Humans, Introns, Molecular Sequence Data, RNA Splice Sites, RNA Splicing, Sarcoplasmic Reticulum Calcium-Transporting ATPases, Segmental Duplications, Genomic, Vertebrates

الوصف: An intron is an extended genomic feature whose function requires multiple constrained positions-donor and acceptor splice sites, a branch point, a polypyrimidine tract and suitable splicing enhancers-that may be distributed over hundreds or thousands of nucleotides. New introns are therefore unlikely to emerge by incremental accumulation of functional sub-elements. Here we demonstrate that a functional intron can be created de novo in a single step by a segmental genomic duplication. This experiment recapitulates in vivo the birth of an intron that arose in the ancestral jawed vertebrate lineage nearly half-a-billion years ago.

وصف الملف: application/pdf

URL الوصول: https://escholarship.org/uc/item/9np410s6