Carrot Carotenoid Genetics and Genomics

Šimon, Petr; Geoffriau, Emmanuel; Ellison, Shelby; Iorizzo, Massimo

doi:10.1007/978-3-030-03389-7_14

Cited by 28 publications

(31 citation statements)

References 67 publications

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“…Moreover, QTL regions can be quite large and may include many potential candidate genes. Nevertheless, this method has been used in carrot research and breeding to elucidate genetic control for morphological, disease resistance and root quality traits 3,29 . GWAS can overcome the limitations of QTL mapping.…”

Section: Discussionmentioning

confidence: 99%

“…In addition, the above-ground tissues of carrot plants are gaining popularity in modern nutrition 2 . With a current annual world production of more than 40 million tons and a total growing area of about 1.2 million hectares, it ranks among the top ten vegetable crops 3 . In the past decades, breeding efforts mainly focused on increasing yield and enhancing disease and pest resistance.…”

Section: Introductionmentioning

confidence: 99%

“…In the past decades, breeding efforts mainly focused on increasing yield and enhancing disease and pest resistance. Nowadays, to address the consumer's demands, the improvement of nutritional and flavour quality traits were added to the list of breeding aims 3 .…”

Section: Introductionmentioning

confidence: 99%

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The carrot monoterpene synthase gene cluster on chromosome 4 harbours genes encoding flavour-associated sabinene synthases

et al. 2020

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In plants, low molecular weight terpenes produced by terpene synthases (TPS) contribute to multiple ecologically and economically important traits. The present study investigates a carrot terpene synthase gene cluster on chromosome 4 associated with volatile monoterpene production. Two carrot mutants, yellow and cola, which are contrasting in the content of low molecular weight terpenes, were crossed to develop an F2 mapping population. The mapping analysis revealed overlapping QTLs on chromosome 4 for sabinene, α-thujene, α-terpinene, γ-terpinene, terpinen-4-ol and 4-carene. The genomic region of this locus includes a cluster of five terpene synthase genes (DcTPS04, DcTPS26, DcTPS27, DcTPS54 and DcTPS55). DcTPS04 and DcTPS54 displayed genotype- and tissue-specific variation in gene expression. Based on the QTL mapping results and the gene expression patterns, DcTPS04 and DcTPS54 were selected for functional characterization. In vitro enzyme assays showed that DcTPS54 is a single-product enzyme catalysing the formation of sabinene, whereas DcTPS04 is a multiple-product terpene synthase producing α-terpineol as a major product and four additional products including sabinene, β-limonene, β-pinene and myrcene. Furthermore, we developed a functional molecular marker that could discriminate carrot genotypes with different sabinene content in a set of 85 accessions.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The carrot monoterpene synthase gene cluster on chromosome 4 harbours genes encoding flavour-associated sabinene synthases

et al. 2020

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“…In Brazil approximately 725 thousand tons of carrots produced each year (IBGE, 2017). Its importance goes beyond supplying carbohydrates and minerals, because it is also rich in α-carotene and ß-carotene, vitamin A precursors (SIMON et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Response to Direct and Correlated Selection on Yield and Leaf Blight in Carrots

Carvalho

Silva

2020

BJA

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“…This molecule belongs to the carotenoids family who is extensively scattered in nature, being an essential component in some fruits, vegetables, and leaves, as well as in several animals, bacteria, and fungi. The carotenoids synthesized in plants have an essential role in photosynthesis contributing to lightharvesting and because of its protective function from photooxidative damage [3,4]. These molecules absorb light between 400-500 nm, where chlorophylls fail as light absorbers.…”

Section: Introductionmentioning

confidence: 99%

Stabilization of β-carotene embedded in a silica matrix and study of its physical properties

Martı́nez

Espericueta²,

Guerrero-Serrano

et al. 2020

Mater. Res. Express

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This work reports on the behavior of β-carotene within a silica matrix prepared by the sol-gel method. Results show that highly pure β-carotene integrates with the silica to form a silica-based composite. The interaction exhibited between the inorganic matrix and the β-carotene results in a π-d conjugated system that guarantees the development of the protective mechanism of the β-carotene and stabilizes the organic molecule, allowing its preservation at high calcination temperature. The spectroscopic analysis, made through fluorescence emission and infrared spectroscopy, shows the presence of βcarotene within the silica matrix after the composite was calcined at 1000°C. Furthermore, the structural interactions of the β-carotene with the silica and the protective function of the β-carotene change the crystallization route naturally followed by the silica when exposed to increasing temperature. In this case, the amorphous silica matrix is preserved after high-temperature calcination, which is beneficial for biomedical applications as it allows the release and transport of the β-carotene to take full advantage of its health benefits.

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Carrot Carotenoid Genetics and Genomics

Cited by 28 publications

References 67 publications

The carrot monoterpene synthase gene cluster on chromosome 4 harbours genes encoding flavour-associated sabinene synthases

The carrot monoterpene synthase gene cluster on chromosome 4 harbours genes encoding flavour-associated sabinene synthases

Response to Direct and Correlated Selection on Yield and Leaf Blight in Carrots

Stabilization of β-carotene embedded in a silica matrix and study of its physical properties

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