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ARS Home » Southeast Area » Dawson, Georgia » National Peanut Research Laboratory » Research » Publications at this Location » Publication #326750

Research Project: Developing Strategies to Identify Useful Genes in Peanut and Breeding High Yielding Peanut Varieties and Germplasm

Location: National Peanut Research Laboratory

Title: Draft Genome Sequence of Cercospora arachidicola, Cause of Early Leaf Spot in Peanut

item Orner, Valerie
item Wang, Xinye
item CANTONWINE, EMILY - Valdosta State University
item CULBREATH, ALBERT - University Of Georgia
item Arias De Ares, Renee

Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: 3/4/2016
Publication Date: N/A
Citation: N/A

Interpretive Summary: The National Peanut Research Laboratory is committed to perform research that helps peanut farmers and the peanut industry. As a first step in understanding the pathogen that causes early leaf spot disease in peanut, we have sequenced its entire genome, and made it public in a National Database, NCBI GenBank.

Technical Abstract: Cercospora arachidicola and Cercosporidium personatum, causal agents of early and late leaf spot, respectively, are important fungal pathogens of peanut. Leaf spot disease is a major contributor to the economic losses experienced by peanut farmers and the industry. Though peanut germplasms with some level of resistance to leaf spot have been identified, much remains unknown about the pathogens and their genetic diversity. The first step toward gaining knowledge is identifying the genome sequence of these organisms. We have sequenced the genomes of C. arachidicola and C. personatum and detected polymorphism among isolates by using simple sequence repeat (SSR) fingerprinting. A genome-wide comparison of both genomes and transcriptomes is in progress. Information about these pathogens at the DNA and RNA level will help identify genotypes which will be made available to breeding programs to challenge potentially resistant peanut germplasm.