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ARS Home » Southeast Area » Charleston, South Carolina » Vegetable Research » Research » Publications at this Location » Publication #348840

Research Project: Biological, Genetic and Genomic Based Disease Management for Vegetable Crops

Location: Vegetable Research

Title: QTL mapping of sulfur tolerance in melon

item Branham, Sandra
item DALEY, JAMES - Clemson University
item Katawczik, Melanie
item Levi, Amnon
item Wechter, William - Pat

Submitted to: Plant and Animal Genome Conference Proceedings
Publication Type: Abstract Only
Publication Acceptance Date: 12/18/2017
Publication Date: 1/13/2019
Citation: Branham, S., J. Daley, M.L. Katawczik, A. Levi and W.P. Wechter. 2018. QTL mapping of sulfur tolerance in melon. Plant and Animal Genome XVII P0723.

Interpretive Summary:

Technical Abstract: Elemental sulfur is a cheap, effective fungicide with multi-site action, which inhibits the evolution of pathogen resistance. Fungal pathogens cause significant yield losses in melon production. Many melon genotypes, however, suffer leaf necrosis in response to elemental sulfur application preventing use of this potent fungicide. Melon breeding efforts would benefit from incorporation of sulfur tolerance but little is known about its genetic basis. Here we present the results of a QTL mapping study in a densely genotyped C. melo RIL population segregating for sulfur tolerance. Multiple QTL mapping identified two QTL and one epistatic interaction that explained 59.8% of the population variation for sulfur tolerance.