Genetic Analysis of Methyl Anthranilate, Mesifurane, Linalool, and Other Flavor Compounds in Cultivated Strawberry ( Fragaria × ananassa ).

Autor:	Barbey CR; Gulf Coast Research and Education Center, University of Florida, Wimauma, FL, United States., Hogshead MH; Horticultural Sciences Department, University of Florida, Gainesville, FL, United States., Harrison B; Horticultural Sciences Department, University of Florida, Gainesville, FL, United States., Schwartz AE; Horticultural Sciences Department, University of Florida, Gainesville, FL, United States., Verma S; Gulf Coast Research and Education Center, University of Florida, Wimauma, FL, United States., Oh Y; Gulf Coast Research and Education Center, University of Florida, Wimauma, FL, United States., Lee S; Gulf Coast Research and Education Center, University of Florida, Wimauma, FL, United States., Folta KM; Horticultural Sciences Department, University of Florida, Gainesville, FL, United States., Whitaker VM; Gulf Coast Research and Education Center, University of Florida, Wimauma, FL, United States.
Jazyk:	angličtina
Zdroj:	Frontiers in plant science [Front Plant Sci] 2021 May 19; Vol. 12, pp. 615749. Date of Electronic Publication: 2021 May 19 (Print Publication: 2021).
DOI:	10.3389/fpls.2021.615749
Abstrakt:	The cultivated strawberry ( Fragaria × ananassa ) is an economically important fruit crop that is intensively bred for improved sensory qualities. The diversity of fruit flavors and aromas in strawberry results mainly from the interactions of sugars, acids, and volatile organic compounds (VOCs) that are derived from diverse biochemical pathways influenced by the expression of many genes. This study integrates multiomic analyses to identify QTL and candidate genes for multiple aroma compounds in a complex strawberry breeding population. Novel fruit volatile QTL was discovered for methyl anthranilate, methyl 2-hexenoate, methyl 2-methylbutyrate, mesifurane, and a shared QTL on Chr 3 was found for nine monoterpene and sesquiterpene compounds, including linalool, 3-carene, β-phellandrene, α-limonene, linalool oxide, nerolidol, α-caryophellene, α-farnesene, and β-farnesene. Fruit transcriptomes from a subset of 64 individuals were used to support candidate gene identification. For methyl esters including the grape-like methyl anthranilate, a novel ANTHANILIC ACID METHYL TRANSFERASE -like gene was identified. Two mesifurane QTL correspond with the known biosynthesis gene O-METHYL TRANSFERASE 1 and a novel FURANEOL GLUCOSYLTRANSFERASE . The shared terpene QTL contains multiple fruit-expressed terpenoid pathway-related genes including NEROLIDOL SYNTHASE 1 ( FanNES1 ). The abundance of linalool and other monoterpenes is partially governed by a co-segregating expression-QTL (eQTL) for FanNES1 transcript variation, and there is additional evidence for quantitative effects from other terpenoid-pathway genes in this narrow genomic region. These QTLs present new opportunities in breeding for improved flavor in commercial strawberry. Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. (Copyright © 2021 Barbey, Hogshead, Harrison, Schwartz, Verma, Oh, Lee, Folta and Whitaker.)
Databáze:	MEDLINE
Externí odkaz:	Zobrazit plný text záznamu