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Bioinformatics 20(Suppl. 1) © Oxford University Press 2004; all rights reserved.

Using MoBIoS' scalable genome join to find conserved primer pair candidates between two genomes

Weijia Xu 1, Willard J. Briggs 1, Joanna Padolina 2, Ruth E. Timme 2, Wenguo Liu 1, C. Randal Linder 2 and Daniel P. Miranker 1,*

1 Department of Computer Sciences and 2 Integrative Biology, University of Texas at Austin, Austin, TX 78741, USA

Received on January 15, 2004; accepted on March 1, 2004

Motivation: For the purpose of identifying evolutionary reticulation events in flowering plants, we determine a large number of paired, conserved DNA oligomers that may be used as primers to amplify orthologous DNA regions using the polymerase chain reaction (PCR).

Results: We develop an initial candidate set by comparing the Arabidopsis and rice genomes using MoBIoS (Molecular Biological Information System). MoBIoS is a metric-space database management system targeting life science data. Through the use of metric-space indexing techniques, two genomes can be compared in O(mlog n), where m and n are the lengths of the genomes, versus O(mn) for BLAST-based analysis. The filtering of low-complexity regions may also be accomplished by directly assessing the uniqueness of the region. We describe mSQL, a SQL extension being developed for MoBIoS that encapsulates the algorithmic details in a common database programming language, shielding end-users from esoteric programming.

Availability: Available upon request from authors.

Contact: miranker{at}cs.utexas.edu

* To whom correspondence should be addressed.


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