2023
DOI: 10.1093/hr/uhad024
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Generating colorful carrot germplasm through metabolic engineering of betalains pigments

Abstract: Betalains are tyrosine-derived plant pigments exclusively found in the Caryophyllales order and some higher fungi and generally classified into two groups: red-violet betacyanins and yellow-orange betaxanthins. Betalains attract great scientific and economic interest because of their relatively simple biosynthesis pathway, attractive colors and health-promoting properties. Co-expressing two core genes BvCYP76AD1 and BvDODA1 with or without a glycosyltransferase gene MjcDOPA5GT allowed the engineering of carrot… Show more

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Cited by 16 publications
(7 citation statements)
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“…pYL1300‐M harbored a p15 : DcMYB7 cassette, and DcMYB7 driven by the cassava p15 promoter (Figure 6a). The p15 promoter has been shown to contribute to moderate expression of target genes in carrot callus (Arango et al., 2010; Deng et al., 2023). The expression of this cassette was expected to result in moderate levels of anthocyanin accumulation in carrot calli.…”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…pYL1300‐M harbored a p15 : DcMYB7 cassette, and DcMYB7 driven by the cassava p15 promoter (Figure 6a). The p15 promoter has been shown to contribute to moderate expression of target genes in carrot callus (Arango et al., 2010; Deng et al., 2023). The expression of this cassette was expected to result in moderate levels of anthocyanin accumulation in carrot calli.…”
Section: Resultsmentioning
confidence: 99%
“…The 35S : DcGST1 construct was also transformed into purple carrot cultivars ‘CPP’ and ‘PPHZ’ to generate DcGST1 ‐overexpressing transgenic carrot 35S : DcGST1 CPP and 35S : DcGST1 PPHZ , respectively. Carrot transformation was performed as previously described (Deng et al., 2023; Li et al., 2021; Xu, Feng, et al., 2019).…”
Section: Methodsmentioning
confidence: 99%
“…For instance, DcMYB7 induces the synthesis of anthocyanin, resulting in the purple color of taproot ( Xu et al., 2019 ). While the heterologous expression of CYP76AD1 , DODA1 , and DOPA5GT induces betalain in carrot, resulting in a red-violet color in the taproot ( Deng et al., 2023 ). These genes not only increase the ornamental value of carrots, but also enhance medicinal and edible homologous functions.…”
Section: Pre-breeding For Other Types Of Terrace Vegetablesmentioning
confidence: 99%
“…Carrots have numerous germplasms with various patterns of carotenoid accumulation (Deng et al., 2023; Simon, 2000; Simpson et al., 2016; Wang et al., 2022). Owing to its remarkable differentiation ability and well‐established transgenic techniques, carrot is a suitable model plant for exploring carotenoid accumulation (Baranski, 2008; Gonzalez‐Calquin & Stange, 2019; Li et al., 2021; Xu, Feng, & Xiong, 2019).…”
Section: Introductionmentioning
confidence: 99%