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Integrative analysis of metabolome and transcriptome reveals the mechanism of color formation in pepper fruit (Capsicum annuum L.)
- Source :
- Food chemistry. 306
- Publication Year :
- 2019
-
Abstract
- To understand the mechanism of the color formation of pepper fruit, integrative analysis of the metabolome and transcriptome profiles was performed in pepper varieties with 4 different fruit colors. A total of 188 flavonoids were identified, and most of the anthocyanins, flavonols and flavones showed markedly higher abundances in purple variety than in other varieties, which was linked to the high expression of flavonoid synthesis and regulatory genes. Using weighted gene co-expression network analyses, modules related to flavonoid synthesis and candidate genes that regulate flavonoid synthesis and transport were identified. Furthermore, the analysis of 12 carotenoids showed that the content of xanthophylls at 50 days after anthesis was significantly different between the four pepper varieties, which was resulted from the differential expressions of genes downstream of the carotenoid pathway. Our results provide new insights into the understanding of the synthesis and accumulation of flavonoids and carotenoids in pepper fruit.
- Subjects :
- Flavonoid
Color
Biology
01 natural sciences
Flavones
Analytical Chemistry
Transcriptome
0404 agricultural biotechnology
Flavonols
Anthesis
Botany
Pepper
Vegetables
Metabolome
Carotenoid
chemistry.chemical_classification
Flavonoids
fungi
010401 analytical chemistry
food and beverages
04 agricultural and veterinary sciences
General Medicine
040401 food science
Carotenoids
0104 chemical sciences
chemistry
Capsicum
Food Science
Subjects
Details
- ISSN :
- 18737072
- Volume :
- 306
- Database :
- OpenAIRE
- Journal :
- Food chemistry
- Accession number :
- edsair.doi.dedup.....0d2c19b258ab54d967756b177b1bc332