Intron size and exon evolution in Drosophila

被引:93
作者
Marais, G [1 ]
Nouvellet, P [1 ]
Keightley, PD [1 ]
Charlesworth, B [1 ]
机构
[1] Univ Edinburgh, Sch Biol Sci, Inst Evolutionary Biol, Edinburgh EH9 3JT, Midlothian, Scotland
关键词
D O I
10.1534/genetics.104.037333
中图分类号
Q3 [遗传学];
学科分类号
071007 ; 090102 ;
摘要
We have found a negative correlation between evolutionary rate at the protein level (as measured by d(N)) and intron size in Drosophila. Although such a relation is expected if introns reduce Hill-Robertson interference within genes, it seems more likely to be explained by the higher abundance of cis-regulatory elements in introns (especially first introns) in genes under strong selective constraints.
引用
收藏
页码:481 / 485
页数:5
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