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Metabolites 2018, 8(4), 56; https://doi.org/10.3390/metabo8040056

Metabolomics of Two Pecan Varieties Provides Insights into Scab Resistance

1
University of Missouri Metabolomics Center, Columbia, MO 652111, USA
2
Department of Biochemistry, University of Missouri, Columbia, MO 652111, USA
3
Noble Research Institute; Ardmore, OK 73402, USA
4
Department of Chemistry, University of Texas at San Antonia, San Antonia, TX 78249, USA
5
Southwest Research Center, Division of Plant Sciences, University of Missouri, Mt. Vernon, MO 65712, USA
*
Authors to whom correspondence should be addressed.
Received: 30 August 2018 / Revised: 19 September 2018 / Accepted: 20 September 2018 / Published: 23 September 2018
(This article belongs to the Special Issue Mass Spectrometry-Based Metabolomics and Its Applications)
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Abstract

UHPLC-MS-based non-targeted metabolomics was used to investigate the biochemical basis of pecan scab resistance. Two contrasting pecan varieties, Kanza (scab-resistant) and Pawnee (scab-susceptible), were profiled and the metabolomics data analyzed using multivariate statistics. Significant qualitative and quantitative metabolic differences were observed between the two varieties. Both varieties were found to have some unique metabolites. Metabolites that were only present or more abundant in Kanza relative to Pawnee could potentially contribute to the scab resistance in Kanza. Some of these metabolites were putatively identified as quercetin derivatives using tandem mass spectrometry. This suggests that quercetin derivatives could be important to pecan scab resistance. View Full-Text
Keywords: metabolomics; UHPLC-MS; MS/MS; polyphenols; flavonoids; scab; pecan; Carya metabolomics; UHPLC-MS; MS/MS; polyphenols; flavonoids; scab; pecan; Carya
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Lei, Z.; Kranawetter, C.; Sumner, B.W.; Huhman, D.; Wherritt, D.J.; Thomas, A.L.; Rohla, C.; Sumner, L.W. Metabolomics of Two Pecan Varieties Provides Insights into Scab Resistance. Metabolites 2018, 8, 56.

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