Intron Phase Patterns in Genes: Preservation and Evolutionary Changes

Title
Intron Phase Patterns in Genes: Preservation and Evolutionary Changes
Publication Date
2007
Author(s)
Ruvinsky, Anatoly
Watson, Charles Richard
Type of document
Journal Article
Language
en
Entity Type
Publication
Publisher
Bentham Open
Place of publication
Netherlands
DOI
10.2174/1874404400701010001
UNE publication id
une:3966
Abstract
Introns are located either between codons (phase 0) or within codons (phase 1 and 2) and their phases as well as location usually stay unchanged for a long time. A string of intron phases represents a structure which may carry useful additional information about internal rearrangements of a gene. Combined search for intron phase patterns and exon lengths serves as a helpful approach for finding conserved intragenic duplications and other rearrangements. In vertebrate genes intragenic duplications usually are more numerous than in orthologs from other animal taxons. Intron phase patterns and exon lengths are highly conservative in some genes and can be traced back to a common ancestor of mammals and nematodes. Despite this, there are orthologs which show drastic losses of intron-exon structures as found in insects and urochordata. Driving forces behind such changes in exon-intron structures remain unknown and need further investigation.
Link
Citation
The Open Evolution Journal, 1(1), p. 1-14
ISSN
1874-4044
Start page
1
End page
14

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