New Approach to Finding Genetic Basis of Plant Variation

Researchers studying the genetic basis of plant variation can now circumvent the lengthy processes performed in the laboratory, thanks to a new method developed by scientists at Purdue University in Indiana. The approach may offer researchers a tool to pinpoint genetic differences in naturally occurring plant populations many times faster than currently possible and help shed light on the likely origin of such differences.

"We've combined a variety of techniques to get at the gene behind a specific trait," said David Salt, a horticulture professor at Purdue University. These techniques include the new technology of DNA microarrays and the use of a large genetic database. From the database, one can look for “candidate genes”, or genes that warrant further study. This information is then cross-referenced with the results from DNA microarrays, small chips that can identify miniscule genetic differences between populations of a single species.

The full article is available at http://news.uns.purdue.edu/hp/SaltSalt.html.