title: Diversity in the carotenoid profiles and the expression of genes related to carotenoid accumulation among citrus genotypes.
abstract: Carotenoids are not only important to the plants themselves but also are beneficial to human health. Since citrus fruit is a good source of carotenoids for the human diet, it is important to study carotenoid profiles and the accumulation mechanism in citrus fruit. Thus, in the present paper, we describe the diversity in the carotenoid profiles of fruit among citrus genotypes. In regard to carotenoids, such as β-cryptoxanthin, violaxanthin, lycopene, and β-citraurin, the relationship between the carotenoid profile and the expression of carotenoid-biosynthetic genes is discussed. Finally, recent results of quantitative trait locus (QTL) analyses of carotenoid contents and expression levels of carotenoid-biosynthetic genes in citrus fruit are shown.
authors.affiliation: Citrus Research Division, NARO Institute of Fruit Tree Science , 485-6 Okitsunakacho, Shimizu, Shizuoka, Shizuoka 424-0292 , Japan.
authors.forename: Yoshinori
authors.initials: Y
authors.lastname: Ikoma
authors.affiliation: Citrus Research Division, NARO Institute of Fruit Tree Science , 485-6 Okitsunakacho, Shimizu, Shizuoka, Shizuoka 424-0292 , Japan.
authors.forename: Hikaru
authors.initials: H
authors.lastname: Matsumoto
authors.affiliation: Department of Biological and Environmental Sciences, Faculty of Agriculture, Shizuoka University , 836 Ohya, Suruga, Shizuoka, Shizuoka 422-8529 , Japan.
authors.forename: Masaya
authors.initials: M
authors.lastname: Kato
keywords: carotenoid; citrus; gene expression; quantitative trait locus; violaxanthin; β-citraurin; β-cryptoxanthin