ArticlePloS one2021
Transcriptomic analysis of a wild and a cultivated varieties of Capsicum annuum over fruit development and ripening.
Article in PloS one, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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8 citing papers in PubMed, 18 citations in OpenAlex.
- Transcriptomics in solanaceous crop improvement: advances and opportunities.Frontiers in plant science · 2025Review
- Genome-Wide Identification and Characterization of SNPs and InDels ofPlants (Basel, Switzerland) · 2024Article
- Characterization of leucine aminopeptidase (LAP) activity in sweet pepper fruits during ripening and its inhibition by nitration and reducing events.Plant cell reports · 2024Article
- Morphological diversity and fruit production of wildHeliyon · 2024Article
- Novel transcriptome networks are associated with adaptation of capsicum fruit development to a light-blocking glasshouse film.Frontiers in plant science · 2023Article
- Integrated omics analysis identified genes and their splice variants involved in fruit development and metabolites production in Capsicum species.Functional & integrative genomics · 2022Article
- Integrated analysis of DNA methylation, transcriptome, and global metabolites in interspecific heteroticiScience · 2022Article
- Transcriptional Regulation of Ripening in Chili Pepper Fruits (International journal of molecular sciences · 2021Review
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Chili pepper (Capsicum annuum) is one of the most important crops worldwide. Its fruits contain metabolites produced over the maturation process like capsaicinoids and carotenoids. This metabolic process produces internal changes in flavor, color, texture, and aroma in fruits to make them more attractive for seed dispersal organisms. The chiltepin (C. annuum L. var. glabriusculum) is a wild variety of the C. annuum L. species that is considered a source of genetic resources that could be used to improve the current chili crops. In this study, we performed a transcriptomic analysis on two fruit maturation stages: immature stage (green fruit) and mature stage (red fruit) of a wild and a cultivated pepper variety. We found 19,811 genes expressed, and 1,008 genes differentially expressed (DEGs) in at least one of the five contrast used; 730 DEGs were found only in one contrast, and most DEGs in all contrasts were downregulated. GO enrichment analysis showed that the majority of DEGs are related to stress responses. KEGG enrichment analysis detected differences in expression patterns in metabolic pathways related to phenylpropanoid biosynthesis, secondary metabolites, plant hormone signal transduction, carotenoid biosynthesis and sesquiterpenoid and triterpenoid biosynthesis. We selected 105 tomato fruit ripening-related genes, and found 53 pepper homologs differentially expressed related to shape, size, and secondary metabolite biosynthesis. According to the transcriptome analysis, the two peppers showed very similar gene expression patterns; differences in expression patterns of genes related to shape, size, ethylene and secondary metabolites biosynthesis suggest that changes produced by domestication of chilli pepper could be very specific to the expression of genes related to traits desired in commercial fruits.
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