A segmental genomic duplication generates a functional intron.
A segmental genomic duplication generates a functional intron.
复制标题
DOI:
10.1038/ncomms1461
复制
发表时间:
2011-08-30
影响因子:
16.6
通讯作者:
中科院分区:
文献类型:
--
作者:
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. The appearance of a new intron that splits an exon without disrupting the corresponding peptide sequence is a rare event in vertebrate genomes. Hellsten et al. demonstrate that, under certain circumstances, a functional intron can be produced in a single step by segmental genomic duplication.
登录
查看更多内容
影响因子:
7
作者:
Blanc, G;Hokamp, K;Wolfe, KH
通讯作者:
Wolfe, KH
影响因子:
56.9
作者:
Lev-Maor, G;Sorek, R;Ast, G
通讯作者:
Ast, G
影响因子:
10.7
作者:
Omilian, Angela R.;Scofield, Douglas G.;Lynch, Michael
通讯作者:
Lynch, Michael
DOI:
10.1073/pnas.201407298
发表时间:
2001-09-25
影响因子:
11.1
作者:
Lim, LP;Burge, CB
通讯作者:
Burge, CB
影响因子:
10.7
作者:
Loh, Yong-Hwee;Brenner, Sydney;Venkatesh, Byrappa
通讯作者:
Venkatesh, Byrappa