» Articles » PMID: 14685272

Eucaryotic Genome Evolution Through the Spontaneous Duplication of Large Chromosomal Segments

Overview
Journal EMBO J
Date 2003 Dec 20
PMID 14685272
Citations 96
Authors
Affiliations
Soon will be listed here.
Abstract

There is growing evidence that duplications have played a major role in eucaryotic genome evolution. Sequencing data revealed the presence of large duplicated regions in the genomes of many eucaryotic organisms, and comparative studies have suggested that duplication of large DNA segments has been a continuing process during evolution. However, little experimental data have been produced regarding this issue. Using a gene dosage assay for growth recovery in Saccharomyces cerevisiae, we demonstrate that a majority of the revertant strains (58%) resulted from the spontaneous duplication of large DNA segments, either intra- or interchromosomally, ranging from 41 to 655 kb in size. These events result in the concomitant duplication of dozens of genes and in some cases in the formation of chimeric open reading frames at the junction of the duplicated blocks. The types of sequences at the breakpoints as well as their superposition with the replication map suggest that spontaneous large segmental duplications result from replication accidents. Aneuploidization events or suppressor mutations that do not involve large-scale rearrangements accounted for the rest of the reversion events (in 26 and 16% of the strains, respectively).

Citing Articles

Mechanisms of tandem duplication in the cancer genome.

Scully R, Glodzik D, Menghi F, Liu E, Zhang C DNA Repair (Amst). 2025; 145:103802.

PMID: 39742573 PMC: 11843477. DOI: 10.1016/j.dnarep.2024.103802.


The road less travelled? Exploring the nuanced evolutionary consequences of duplicated genes.

Baker E, Woollard A Essays Biochem. 2022; 66(6):737-744.

PMID: 36449319 PMC: 9750850. DOI: 10.1042/EBC20220213.


Imaging Intron Evolution.

Panaro M, Calvello R, Miniero D, Mitolo V, Cianciulli A Methods Protoc. 2022; 5(4).

PMID: 35893579 PMC: 9326662. DOI: 10.3390/mps5040053.


Can Introns Stabilize Gene Duplication?.

Micheli G, Camilloni G Biology (Basel). 2022; 11(6).

PMID: 35741463 PMC: 9220161. DOI: 10.3390/biology11060941.


Comprehensive analysis of cis- and trans-acting factors affecting ectopic Break-Induced Replication.

Uribe-Calvillo T, Maestroni L, Marsolier M, Khadaroo B, Arbiol C, Schott J PLoS Genet. 2022; 18(6):e1010124.

PMID: 35727827 PMC: 9249352. DOI: 10.1371/journal.pgen.1010124.


References
1.
Robinson-Rechavi M, Marchand O, Escriva H, Laudet V . An ancestral whole-genome duplication may not have been responsible for the abundance of duplicated fish genes. Curr Biol. 2001; 11(12):R458-9. DOI: 10.1016/s0960-9822(01)00280-9. View

2.
Cha R, Kleckner N . ATR homolog Mec1 promotes fork progression, thus averting breaks in replication slow zones. Science. 2002; 297(5581):602-6. DOI: 10.1126/science.1071398. View

3.
Bailey J, Gu Z, Clark R, Reinert K, Samonte R, Schwartz S . Recent segmental duplications in the human genome. Science. 2002; 297(5583):1003-7. DOI: 10.1126/science.1072047. View

4.
Lupski J . Genomic disorders: structural features of the genome can lead to DNA rearrangements and human disease traits. Trends Genet. 1998; 14(10):417-22. DOI: 10.1016/s0168-9525(98)01555-8. View

5.
Pelletier R, Krasilnikova M, Samadashwily G, Lahue R, Mirkin S . Replication and expansion of trinucleotide repeats in yeast. Mol Cell Biol. 2003; 23(4):1349-57. PMC: 141142. DOI: 10.1128/MCB.23.4.1349-1357.2003. View