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Open Access Software

'PACLIMS': A component LIM system for high-throughput functional genomic analysis

Nicole Donofrio1, Ravi Rajagopalon1, Douglas Brown1, Stephen Diener1, Donald Windham1, Shelly Nolin1, Anna Floyd1, Thomas Mitchell1, Natalia Galadima2, Sara Tucker2, Marc J Orbach2, Gayatri Patel3, Mark Farman3, Vishal Pampanwar4, Cari Soderlund4, Yong-Hwan Lee5 and Ralph A Dean1*

Author Affiliations

1 Department of Plant Pathology, Fungal Genomics Laboratory, North Carolina State University, Raleigh, NC, USA

2 Department of Plant Pathology, University of Arizona, Tucson, AZ, USA

3 Department of Plant Pathology, Plant Sciences Building, 1405 Veteran's Drive, University of Kentucky, Lexington, KY, 40546, USA

4 Arizona Genomics Computational Laboratory, University of Arizona, Tucson, AZ, USA

5 School of Agricultural Biotechnology, Seoul National University, Seoul, Korea

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BMC Bioinformatics 2005, 6:94  doi:10.1186/1471-2105-6-94

Published: 12 April 2005



Recent advances in sequencing techniques leading to cost reduction have resulted in the generation of a growing number of sequenced eukaryotic genomes. Computational tools greatly assist in defining open reading frames and assigning tentative annotations. However, gene functions cannot be asserted without biological support through, among other things, mutational analysis. In taking a genome-wide approach to functionally annotate an entire organism, in this application the ~11,000 predicted genes in the rice blast fungus (Magnaporthe grisea), an effective platform for tracking and storing both the biological materials created and the data produced across several participating institutions was required.


The platform designed, named PACLIMS, was built to support our high throughput pipeline for generating 50,000 random insertion mutants of Magnaporthe grisea. To be a useful tool for materials and data tracking and storage, PACLIMS was designed to be simple to use, modifiable to accommodate refinement of research protocols, and cost-efficient. Data entry into PACLIMS was simplified through the use of barcodes and scanners, thus reducing the potential human error, time constraints, and labor. This platform was designed in concert with our experimental protocol so that it leads the researchers through each step of the process from mutant generation through phenotypic assays, thus ensuring that every mutant produced is handled in an identical manner and all necessary data is captured.


Many sequenced eukaryotes have reached the point where computational analyses are no longer sufficient and require biological support for their predicted genes. Consequently, there is an increasing need for platforms that support high throughput genome-wide mutational analyses. While PACLIMS was designed specifically for this project, the source and ideas present in its implementation can be used as a model for other high throughput mutational endeavors.