« Previous Abstract"Olfaction in the gypsy moth, Lymantria dispar: effect of pH, ionic strength, and reductants on pheromone transport by pheromone-binding proteins"    Next AbstractChemotaxis assays of mouse sperm on microfluidic devices »

BMC Plant Biol

Title:		Genetic architecture of berry aroma compounds in a QTL (quantitative trait loci) mapping population of interspecific hybrid grapes (Vitis labruscana x Vitis vinifera)
Author(s):		Koyama K; Kono A; Ban Y; Bahena-Garrido SM; Ohama T; Iwashita K; Fukuda H; Goto-Yamamoto N;
Address:		"National Research Institute of Brewing, 3-7-1 Kagamiyama, Higashihiroshima, Hiroshima, 739-0046, Japan. koyama@nrib.go.jp. Institute of Fruit Tree and Tea Science, NARO, 2-1 Fujimoto, Tsukuba, Ibaraki, 305-8605, Japan. akono@affrc.go.jp. Western Region Agricultural Research Center (Kinki, Chugoku and Shikoku Regions), NARO, 6-12-1 Nishifukatsu, Fukuyama, Hiroshima, 721-8514, Japan. National Research Institute of Brewing, 3-7-1 Kagamiyama, Higashihiroshima, Hiroshima, 739-0046, Japan"
Journal Title:		BMC Plant Biol
Year:		2022
Volume:		20220923
Issue:		1
Page Number:		458 -
DOI:		10.1186/s12870-022-03842-z
ISSN/ISBN:		1471-2229 (Electronic) 1471-2229 (Linking)
Abstract:		"BACKGROUND: Although grapes accumulate diverse groups of volatile compounds, their genetic regulation in different cultivars remains unelucidated. Therefore, this study investigated the volatile composition in the berries of an interspecific hybrid population from a Vitis labruscana 'Campbell Early' (CE) x Vitis vinifera 'Muscat of Alexandria' (MA) cross to understand the relationship among volatile compounds and their genetic regulation. Then, a quantitative trait locus (QTL) analysis of its volatile compounds was conducted. RESULTS: While MA contained higher concentrations of monoterpenes and norisoprenoids, CE contained higher concentrations of C6 compounds, lactones and shikimic acid derivatives, including volatiles characteristic to American hybrids, i.e., methyl anthranilate, o-aminoacetophenone and mesifurane. Furthermore, a cluster analysis of volatile profiles in the hybrid population discovered ten coordinately modulated free and bound volatile clusters. QTL analysis identified a major QTL on linkage group (LG) 5 in the MA map for 14 monoterpene concentrations, consistent with a previously reported locus. Additionally, several QTLs detected in the CE map affected the concentrations of specific monoterpenes, such as linalool, citronellol and 1,8-cineol, modifying the monoterpene composition in the berries. As for the concentrations of five norisoprenoids, a major common QTL on LG2 was discovered first in this study. Several QTLs with minor effects were also discovered in various volatile groups, such as lactones, alcohols and shikimic acid derivatives. CONCLUSIONS: An overview of the profiles of aroma compounds and their underlying QTLs in a population of interspecific hybrid grapes in which muscat flavor compounds and many other aroma compounds were mixed variously were elucidated. Coordinate modulation of the volatile clusters in the hybrid population suggested an independent mechanism for controlling the volatiles of each group. Accordingly, specific QTLs with significant effects were observed for terpenoids, norisoprenoids and some volatiles highly contained in CE berries"
Keywords:		Eucalyptol/metabolism Fruit/metabolism Lactones/metabolism Monoterpenes/metabolism Norisoprenoids/analysis/metabolism Odorants/analysis Quantitative Trait Loci/genetics Shikimic Acid/metabolism Terpenes/metabolism *Vitis/genetics/metabolism *Volatile Orga;
Notes:		"MedlineKoyama, Kazuya Kono, Atsushi Ban, Yusuke Bahena-Garrido, Sharon Marie Ohama, Tomoko Iwashita, Kazuhiro Fukuda, Hisashi Goto-Yamamoto, Nami eng England 2022/09/24 BMC Plant Biol. 2022 Sep 23; 22(1):458. doi: 10.1186/s12870-022-03842-z"