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Disease-resistance Gene Identified in Peppers

1,027 views · Published 22 May 2014 · 1:01 · Indexed 6 November 2026

Channel: UC Davis · 2014 · Science & Technology

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Scientists from the University of California, Davis, have identified a promising candidate gene that encodes resistance to the fungus-like pathogen P. capsici in peppers. Read more: http://www.news.ucdavis.edu/search/news_detail.lasso?id=10935

Researchers at the UC Davis Seed Biotechnology Center have identified a candidate gene that encodes an enzyme in peppers known to trigger resistance to a common pathogen.

The pathogen phytopthora capsici spreads a root rot disease that can severely affect crop yields in the pepper industry.
Doctoral candidate Zeb Rehrig, under the direction of Allen van Deynze, used 400 lines from four populations of peppers for the study.

The effects of the pathogen on a flat of peppers is shown in this video over a period of six days.  This particular isolate was collected from the northeastern part of the United States.

The peppers are a cross between the resistant landrace CM 334 and the "early jalapeño," which is an open-pollinated pepper variety.

For a problem that has been plaguing the hot pepper industry for over a century, this finding has proven to be incredibly useful.

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