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| Content Provider | Springer Nature Link |
|---|---|
| Author | Li, Liangliang Dion, Eric Richard, Gabriel Domingue, Olivier Jean, Martine Belzile, François J. |
| Copyright Year | 2008 |
| Abstract | The eukaryotic DNA mismatch repair (MMR) system contributes to maintaining the fidelity of genetic information by correcting replication errors and preventing illegitimate recombination events. This study aimed to examine the function(s) of the Arabidopsis thaliana PMS1 gene (AtPMS1), one of three homologs of the bacterial MutL gene in plants. Two independent mutant alleles (Atpms1-1 and Atpms1-2) were obtained and one of these (Atpms1-1) was studied in detail. The mutant exhibited a reduction in seed set and a bias against the transmission of the mutant allele. Somatic recombination, both homologous and homeologous, was examined using a set of reporter constructs. Homologous recombination remained unchanged in the mutant while homeologous recombination was between 1.7- and 4.8-fold higher than in the wild type. This increase in homeologous recombination frequency was not correlated with the degree of sequence divergence. In RNAi lines, a range of increases in homeologous recombination were observed with two lines showing a 3.3-fold and a 3.6-fold increase. These results indicate that the AtPMS1 gene contributes to an antirecombination activity aimed at restricting recombination between diverged sequences. |
| Starting Page | 675 |
| Ending Page | 684 |
| Page Count | 10 |
| File Format | |
| ISSN | 01674412 |
| Journal | Plant Molecular Biology |
| Volume Number | 69 |
| Issue Number | 6 |
| e-ISSN | 15735028 |
| Language | English |
| Publisher | Springer Netherlands |
| Publisher Date | 2008-12-30 |
| Publisher Place | Dordrecht |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | DNA mismatch repair MutL homolog AtPMS1 Homologous recombination Homeologous recombination Plant Pathology Biochemistry Plant Sciences |
| Content Type | Text |
| Resource Type | Article |
| Subject | Genetics Plant Science Medicine Agronomy and Crop Science |
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