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首页> 外文期刊>Genome >Abscisic acid and ethylene biosynthesis-related genes are associated with anthocyanin accumulation in purple ornamental cabbage (Brassica oleracea var. acephala)
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Abscisic acid and ethylene biosynthesis-related genes are associated with anthocyanin accumulation in purple ornamental cabbage (Brassica oleracea var. acephala)

机译：脱离酸和乙烯生物合成相关基因与紫色观赏卷心菜（Brassica Oleracea Var）中的花青素积累有关。

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摘要

Purple ornamental cabbage (Brassica oleracea var. acephala) is a popular decorative plant, cultivated for its colorful leaf rosettes that persist in cool weather. It is characterized by green outer leaves and purple inner leaves, whose purple pigmentation is due to the accumulation of anthocyanin pigments. Phytohormones play important roles in anthocyanin biosynthesis in other species. Here, we identified 14 and 19 candidate genes putatively involved in abscisic acid (ABA) and ethylene (ET) biosynthesis, respectively, in B. oleracea. We determined the expression patterns of these candidate genes by reverse-transcription quantitative PCR (RT-qPCR). Among candidate ABA biosynthesis-related genes, the expressions of BoNCED2.1, BoNCED2.2, BoNCED6, BoNCED9.1, and BoAAO3.2 were significantly higher in purple compared to green leaves. Likewise, most of the ET biosynthetic genes (BoACS6, BoACS9.1, BoACS11, BoACO1.1, BoACO1.2, BoACO3.1, BoACO4, and BoACO5) had significantly higher expression in purple compared to green leaves. Among these genes, BoNCED2.1, BoNCED2.2, BoACS11, and BoACO4 showed particularly strong associations with total anthocyanin content of the purple inner leaves. Our results suggest that ABA and ET might promote the intense purple pigmentation of the inner leaves of purple ornamental cabbage.
机译：紫色观赏卷心菜（Brassica Oleracea var。Acephala）是一种受欢迎的装饰植物，为其五颜六色的叶片玫瑰花栽培，坚持凉爽的天气。它的特征在于绿色外叶和紫色内叶，其紫色色素沉着是由于花青素颜料的积累。植物肠酮在其他物种中在花青素生物合成中发挥重要作用。这里，我们鉴定了14和19个候选基因，分别在B. oleracea中分别涉及脱硅酸（ABA）和乙烯（ET）生物合成。通过反转转录定量PCR（RT-QPCR）确定这些候选基因的表达模式。在候选ABA生物合成相关基因中，与绿叶相比，Bonced2.1，Bonced2.2，Bonced6，Bonced9.1和Boaao3.2的表达明显高。同样，与绿叶相比，大多数Et生物合成基因（BOACS6，BOACS9.1，BOACO1，BOACO1.2，BOACO 3.1，BOACO4，BOACO3.1.2，BOACO3.1，BOACO5）在紫色方面具有显着更高的表达。在这些基因中，Bonced2.1，Bonced2.2，BOACS11和BOACO4显示出特别强烈的紫色内叶的总花青素含量。我们的研究结果表明，ABA和ET可能会促进紫色观赏卷心菜内叶的强烈紫色色素沉着。

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