naa a22 4500 510730264 CHVBK 20180411082950.0 cr unu---uuuuu 180411e20130201xx s 000 0 eng 10.1007/s11295-012-0546-z doi (NATIONALLICENCE)springer-10.1007/s11295-012-0546-z Genetic dissection of aroma volatile compounds from the essential oil of peach fruit: QTL analysis and identification of candidate genes using dense SNP maps [Elektronische Daten] [Iban Eduardo, Giorgiana Chietera, Raul Pirona, Igor Pacheco, Michela Troggio, Elisa Banchi, Daniele Bassi, Laura Rossini, Alberto Vecchietti, Carlo Pozzi] Volatile organic compounds (VOCs) in plants are involved in aroma and pest resistance. These compounds form a complex mixture whose composition is specific to species and often to varieties. Despite their importance as essential factors that determine peach fruit quality, understanding of molecular, genetic, and physiological mechanisms underlying aroma formation is limited. The aim of this study was the identification in peach of quantitative trait loci (QTLs) for fruit VOCs to understand their genetic basis using an F1 population of 126 seedlings deriving from the cross between "Bolero” (B) and "OroA” (O), two peach cultivars differing in their aroma profile. Dense single nucleotide polymorphism (SNP) and SSR maps covering the eight linkage groups of the peach genome were constructed by genotyping with the International Peach SNP Consortium peach SNP array v1, and data for 23 VOCs with high or unknown "odor activity value” were obtained by gas chromatography-mass spectrometry analysis of fruit essential oil in the years 2007 and 2008. A total of 72 QTLs were identified, most consistent in both years. QTLs were identified for the 23 VOCs studied, including three major QTLs for nonanal, linalool, and for p-menth-1-en-9-al stable in both years. Collocations between candidate genes and major QTLs were identified taking advantage of the peach genome sequence: genes encoding two putative terpene synthases and one lipoxygenase (Lox) might be involved in the biosynthesis of linalool and p-menth-1-en-9-al, and nonanal, respectively. Implications for marker-assisted selection and future research on the subject are discussed. The Author(s), 2012 Peach nationallicence VOCs nationallicence QTLs nationallicence Linalool nationallicence Nonanal nationallicence p -Menth-1-en-9-al nationallicence Eduardo Iban Parco Tecnologico Padano, via Einstein, Loc. Cascina Codazza, 26900, Lodi, Italy aut Chietera Giorgiana DiSAA, Università degli Studi di Milano, via Celoria 2, 20133, Milan, Italy aut Pirona Raul Parco Tecnologico Padano, via Einstein, Loc. Cascina Codazza, 26900, Lodi, Italy aut Pacheco Igor DiSAA, Università degli Studi di Milano, via Celoria 2, 20133, Milan, Italy aut Troggio Michela IASMA Research and Innovation Centre, Foundation Edmund Mach, Via Edmund Mach 1, 38010, Trento, San Michele all'Adige, Italy aut Banchi Elisa IASMA Research and Innovation Centre, Foundation Edmund Mach, Via Edmund Mach 1, 38010, Trento, San Michele all'Adige, Italy aut Bassi Daniele DiSAA, Università degli Studi di Milano, via Celoria 2, 20133, Milan, Italy aut Rossini Laura Parco Tecnologico Padano, via Einstein, Loc. Cascina Codazza, 26900, Lodi, Italy aut Vecchietti Alberto Parco Tecnologico Padano, via Einstein, Loc. Cascina Codazza, 26900, Lodi, Italy aut Pozzi Carlo Parco Tecnologico Padano, via Einstein, Loc. Cascina Codazza, 26900, Lodi, Italy aut Tree Genetics & Genomes Springer-Verlag 9/1(2013-02-01), 189-204 1614-2942 9:1<189 2013 9 11295 https://doi.org/10.1007/s11295-012-0546-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11295-012-0546-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Eduardo Iban Parco Tecnologico Padano, via Einstein, Loc. Cascina Codazza, 26900, Lodi, Italy aut NATIONALLICENCE 700 1- Chietera Giorgiana DiSAA, Università degli Studi di Milano, via Celoria 2, 20133, Milan, Italy aut NATIONALLICENCE 700 1- Pirona Raul Parco Tecnologico Padano, via Einstein, Loc. Cascina Codazza, 26900, Lodi, Italy aut NATIONALLICENCE 700 1- Pacheco Igor DiSAA, Università degli Studi di Milano, via Celoria 2, 20133, Milan, Italy aut NATIONALLICENCE 700 1- Troggio Michela IASMA Research and Innovation Centre, Foundation Edmund Mach, Via Edmund Mach 1, 38010, Trento, San Michele all'Adige, Italy aut NATIONALLICENCE 700 1- Banchi Elisa IASMA Research and Innovation Centre, Foundation Edmund Mach, Via Edmund Mach 1, 38010, Trento, San Michele all'Adige, Italy aut NATIONALLICENCE 700 1- Bassi Daniele DiSAA, Università degli Studi di Milano, via Celoria 2, 20133, Milan, Italy aut NATIONALLICENCE 700 1- Rossini Laura Parco Tecnologico Padano, via Einstein, Loc. Cascina Codazza, 26900, Lodi, Italy aut NATIONALLICENCE 700 1- Vecchietti Alberto Parco Tecnologico Padano, via Einstein, Loc. Cascina Codazza, 26900, Lodi, Italy aut NATIONALLICENCE 700 1- Pozzi Carlo Parco Tecnologico Padano, via Einstein, Loc. Cascina Codazza, 26900, Lodi, Italy aut NATIONALLICENCE 773 0- Tree Genetics & Genomes Springer-Verlag 9/1(2013-02-01), 189-204 1614-2942 9:1<189 2013 9 11295 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer