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ARS Home » Southeast Area » Charleston, South Carolina » Vegetable Research » Research » Publications at this Location » Publication #364059

Research Project: Genomics and Genetic Improvement of Disease Resistance and Horticultural Characteristics of Watermelon, Broccoli, and Leafy Brassicas

Location: Vegetable Research

Title: Progress and challenges in breeding broccoli adapted to high temperature environments

item Farnham, Mark

Submitted to: HortScience
Publication Type: Abstract Only
Publication Acceptance Date: 6/15/2019
Publication Date: N/A
Citation: N/A

Interpretive Summary:

Technical Abstract: ARS scientists in Charleston, SC have been working to breed broccoli adapted to high temperature environments for more than two decades. This effort has employed a recurrent selction approach, and progress in developing germplasm increasingly tolerant to this abiotic stress has been slow and incremental. Observations and experience over the years have confirmed the original hypothesis that adaptation to high temperature is a quantitative trait controlled by many genes with relatively small effects. Recent studies have identiied significant quantitative trait loci (QTL) associated with the trait, and candidate genes that may be associated with expression have been proposed. Research has also identified factors that may limit additional gains made in the breeding effort; however, some progress can still be expected in future selection cycles.