Comparison of carotenoid accumulation and biosynthetic gene expression between Valencia and Rohde Red Valencia sweet oranges.
Identifieur interne : 000B53 ( Main/Exploration ); précédent : 000B52; suivant : 000B54Comparison of carotenoid accumulation and biosynthetic gene expression between Valencia and Rohde Red Valencia sweet oranges.
Auteurs : Xu Wei [République populaire de Chine] ; Chunxian Chen [États-Unis] ; Qibin Yu [États-Unis] ; Antoine Gady [États-Unis] ; Yuan Yu [États-Unis] ; Guolu Liang [République populaire de Chine] ; Frederick G. Gmitter [États-Unis]Source :
- Plant science : an international journal of experimental plant biology [ 1873-2259 ] ; 2014.
English descriptors
- KwdEn :
- Carotenoids (biosynthesis), Carotenoids (genetics), Carotenoids (metabolism), Citrus sinensis (classification), Citrus sinensis (genetics), Citrus sinensis (growth & development), Citrus sinensis (metabolism), Cryptoxanthins (biosynthesis), Cryptoxanthins (genetics), Cryptoxanthins (metabolism), Fruit (growth & development), Fruit (metabolism), Gene Expression, Gene Expression Regulation, Plant, Genes, Plant, Humans, Plant Proteins (genetics), Species Specificity, Xanthophylls (biosynthesis), Xanthophylls (genetics), Xanthophylls (metabolism).
- MESH :
- chemical , biosynthesis : Carotenoids, Cryptoxanthins, Xanthophylls.
- chemical , genetics : Carotenoids, Cryptoxanthins, Plant Proteins, Xanthophylls.
- chemical , metabolism : Carotenoids, Cryptoxanthins, Xanthophylls.
- classification : Citrus sinensis.
- genetics : Citrus sinensis.
- growth & development : Citrus sinensis, Fruit.
- metabolism : Citrus sinensis, Fruit.
- Gene Expression, Gene Expression Regulation, Plant, Genes, Plant, Humans, Species Specificity.
Abstract
Carotenoid accumulation and biosynthetic gene expression levels during fruit maturation were compared between ordinary Valencia (VAL) and its more deeply colored mutant Rohde Red Valencia orange (RRV). The two cultivars exhibited different carotenoid profiles and regulatory mechanisms in flavedo and juice sacs, respectively. In flavedo, there was uncoordinated carotenoid accumulation and gene expression in RRV during green stages, which might be related to the expression of certain gene(s) in the MEP (methylerythritol phosphate) pathway. The carotenoid biosynthesis pathway shifting from α,β-xanthophylls to β,β-xanthophylls synthesis occurred in RRV earlier than VAL during orange stages. In juice sacs, the low carotenoid content in both cultivars coincided with low expression of LCYE-Contig03 and LCYE-Contig24 during green stages, suggesting LCYE might be a limiting step for carotenoid accumulation. VAL mainly accumulated violaxanthin, but RRV accumulated β-cryptoxanthin and violaxanthin during orange stages, which corresponded to differences in juice color. Several upstream genes (PDS-Contig17, LCYB-Contig19, and ZDS members) and a downstream gene (ZEP) were expressed at higher levels in RRV than VAL, which might be responsible for greater accumulation of β-cryptoxanthin and violaxanthin in RRV, respectively.
DOI: 10.1016/j.plantsci.2014.06.016
PubMed: 25219303
Affiliations:
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Southwest University, College of Horticulture and Landscape, 2 Tiansheng Road, Beibei District, Chongqing 400715, China.</nlm:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>University of Florida, Citrus Research and Education Center, 700 Experiment Station Road, Lake Alfred, FL 33850, USA; Southwest University, College of Horticulture and Landscape, 2 Tiansheng Road, Beibei District, Chongqing 400715</wicri:regionArea><wicri:noRegion>Chongqing 400715</wicri:noRegion></affiliation></author><author><name sortKey="Chen, Chunxian" sort="Chen, Chunxian" uniqKey="Chen C" first="Chunxian" last="Chen">Chunxian Chen</name><affiliation wicri:level="2"><nlm:affiliation>USDA, ARS, Southeastern Fruit and Tree Nut Research Laboratory, 21 Dunbar Road, Byron, GA 31008, USA.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>USDA, ARS, Southeastern Fruit and Tree Nut Research Laboratory, 21 Dunbar Road, Byron, GA 31008</wicri:regionArea><placeName><region type="state">Géorgie (États-Unis)</region></placeName></affiliation></author><author><name sortKey="Yu, Qibin" sort="Yu, Qibin" uniqKey="Yu Q" first="Qibin" last="Yu">Qibin Yu</name><affiliation wicri:level="2"><nlm:affiliation>University of Florida, Citrus Research and Education Center, 700 Experiment Station Road, Lake Alfred, FL 33850, USA.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>University of Florida, Citrus Research and Education Center, 700 Experiment Station Road, Lake Alfred, FL 33850</wicri:regionArea><placeName><region type="state">Floride</region></placeName></affiliation></author><author><name sortKey="Gady, Antoine" sort="Gady, Antoine" uniqKey="Gady A" first="Antoine" last="Gady">Antoine Gady</name><affiliation wicri:level="2"><nlm:affiliation>University of Florida, Citrus Research and Education Center, 700 Experiment Station Road, Lake Alfred, FL 33850, USA.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>University of Florida, Citrus Research and Education Center, 700 Experiment Station Road, Lake Alfred, FL 33850</wicri:regionArea><placeName><region type="state">Floride</region></placeName></affiliation></author><author><name sortKey="Yu, Yuan" sort="Yu, Yuan" uniqKey="Yu Y" first="Yuan" last="Yu">Yuan Yu</name><affiliation wicri:level="2"><nlm:affiliation>University of Florida, Citrus Research and Education Center, 700 Experiment Station Road, Lake Alfred, FL 33850, USA.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>University of Florida, Citrus Research and Education Center, 700 Experiment Station Road, Lake Alfred, FL 33850</wicri:regionArea><placeName><region type="state">Floride</region></placeName></affiliation></author><author><name sortKey="Liang, Guolu" sort="Liang, Guolu" uniqKey="Liang G" first="Guolu" last="Liang">Guolu Liang</name><affiliation wicri:level="1"><nlm:affiliation>Southwest University, College of Horticulture and Landscape, 2 Tiansheng Road, Beibei District, Chongqing 400715, China.</nlm:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Southwest University, College of Horticulture and Landscape, 2 Tiansheng Road, Beibei District, Chongqing 400715</wicri:regionArea><wicri:noRegion>Chongqing 400715</wicri:noRegion></affiliation></author><author><name sortKey="Gmitter, Frederick G" sort="Gmitter, Frederick G" uniqKey="Gmitter F" first="Frederick G" last="Gmitter">Frederick G. Gmitter</name><affiliation wicri:level="2"><nlm:affiliation>University of Florida, Citrus Research and Education Center, 700 Experiment Station Road, Lake Alfred, FL 33850, USA. Electronic address: fgmitter@ufl.edu.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>University of Florida, Citrus Research and Education Center, 700 Experiment Station Road, Lake Alfred, FL 33850</wicri:regionArea><placeName><region type="state">Floride</region></placeName></affiliation></author></analytic><series><title level="j">Plant science : an international journal of experimental plant biology</title><idno type="eISSN">1873-2259</idno><imprint><date when="2014" type="published">2014</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Carotenoids (biosynthesis)</term><term>Carotenoids (genetics)</term><term>Carotenoids (metabolism)</term><term>Citrus sinensis (classification)</term><term>Citrus sinensis (genetics)</term><term>Citrus sinensis (growth & development)</term><term>Citrus sinensis (metabolism)</term><term>Cryptoxanthins (biosynthesis)</term><term>Cryptoxanthins (genetics)</term><term>Cryptoxanthins (metabolism)</term><term>Fruit (growth & development)</term><term>Fruit (metabolism)</term><term>Gene Expression</term><term>Gene Expression Regulation, Plant</term><term>Genes, Plant</term><term>Humans</term><term>Plant Proteins (genetics)</term><term>Species Specificity</term><term>Xanthophylls (biosynthesis)</term><term>Xanthophylls (genetics)</term><term>Xanthophylls (metabolism)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="biosynthesis" xml:lang="en"><term>Carotenoids</term><term>Cryptoxanthins</term><term>Xanthophylls</term></keywords><keywords scheme="MESH" type="chemical" qualifier="genetics" xml:lang="en"><term>Carotenoids</term><term>Cryptoxanthins</term><term>Plant Proteins</term><term>Xanthophylls</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Carotenoids</term><term>Cryptoxanthins</term><term>Xanthophylls</term></keywords><keywords scheme="MESH" qualifier="classification" xml:lang="en"><term>Citrus sinensis</term></keywords><keywords scheme="MESH" qualifier="genetics" xml:lang="en"><term>Citrus sinensis</term></keywords><keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Citrus sinensis</term><term>Fruit</term></keywords><keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Citrus sinensis</term><term>Fruit</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Gene Expression</term><term>Gene Expression Regulation, Plant</term><term>Genes, Plant</term><term>Humans</term><term>Species Specificity</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Carotenoid accumulation and biosynthetic gene expression levels during fruit maturation were compared between ordinary Valencia (VAL) and its more deeply colored mutant Rohde Red Valencia orange (RRV). The two cultivars exhibited different carotenoid profiles and regulatory mechanisms in flavedo and juice sacs, respectively. In flavedo, there was uncoordinated carotenoid accumulation and gene expression in RRV during green stages, which might be related to the expression of certain gene(s) in the MEP (methylerythritol phosphate) pathway. The carotenoid biosynthesis pathway shifting from α,β-xanthophylls to β,β-xanthophylls synthesis occurred in RRV earlier than VAL during orange stages. In juice sacs, the low carotenoid content in both cultivars coincided with low expression of LCYE-Contig03 and LCYE-Contig24 during green stages, suggesting LCYE might be a limiting step for carotenoid accumulation. VAL mainly accumulated violaxanthin, but RRV accumulated β-cryptoxanthin and violaxanthin during orange stages, which corresponded to differences in juice color. Several upstream genes (PDS-Contig17, LCYB-Contig19, and ZDS members) and a downstream gene (ZEP) were expressed at higher levels in RRV than VAL, which might be responsible for greater accumulation of β-cryptoxanthin and violaxanthin in RRV, respectively.</div></front></TEI><affiliations><list><country><li>République populaire de Chine</li><li>États-Unis</li></country><region><li>Floride</li><li>Géorgie (États-Unis)</li></region></list><tree><country name="République populaire de Chine"><noRegion><name sortKey="Wei, Xu" sort="Wei, Xu" uniqKey="Wei X" first="Xu" last="Wei">Xu Wei</name></noRegion><name sortKey="Liang, Guolu" sort="Liang, Guolu" uniqKey="Liang G" first="Guolu" last="Liang">Guolu Liang</name></country><country name="États-Unis"><region name="Géorgie (États-Unis)"><name sortKey="Chen, Chunxian" sort="Chen, Chunxian" uniqKey="Chen C" first="Chunxian" last="Chen">Chunxian Chen</name></region><name sortKey="Gady, Antoine" sort="Gady, Antoine" uniqKey="Gady A" first="Antoine" last="Gady">Antoine Gady</name><name sortKey="Gmitter, Frederick G" sort="Gmitter, Frederick G" uniqKey="Gmitter F" first="Frederick G" last="Gmitter">Frederick G. Gmitter</name><name sortKey="Yu, Qibin" sort="Yu, Qibin" uniqKey="Yu Q" first="Qibin" last="Yu">Qibin Yu</name><name sortKey="Yu, Yuan" sort="Yu, Yuan" uniqKey="Yu Y" first="Yuan" last="Yu">Yuan Yu</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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