小白菜子中硫代葡萄糖苷、糖和有机酸含量的数量性状基因座分析。sativa。

IF 10.6 Q1 HORTICULTURE Molecular Horticulture Pub Date : 2022-10-10 DOI:10.1186/s43897-022-00044-x
Luke Bell, Martin Chadwick, Manik Puranik, Richard Tudor, Lisa Methven, Carol Wagstaff
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引用次数: 1

摘要

小球藻亚种。紫花苜蓿是十字花科的一种多叶蔬菜,以其辛辣而闻名。生长条件、叶龄、农艺措施和品种选择的变化导致质量不一致,尤其是异硫氰酸酯(ITCs)及其前体硫代葡萄糖苷(GSL)的含量。我们提出了Eruca的第一个连锁和数量性状位点(QTL)图谱,该图谱使用139个F4系群体生成。观察到环境对初级和次级代谢产物丰度的显著影响,英国种植的植物含有显著更高浓度的萝卜硫素、苹果酸和总糖。意大利种植的植物具有较高浓度的芥子酸、吲哚GSL和低单糖的特征。鉴定出20个QTL,并与稳健的SNP标记相关。5个推测和GSL 4-甲氧基葡糖芸苔素(4MGB)合成相关的基因被鉴定为QTL的候选调控因子。分析显示,LG1上存在的MYB51、IGMT1和IGMT4的直向同源物与Eruca中的4MGB浓度有关。这项研究说明了该图谱在鉴定Eruca营养成分相关基因方面的实用性,以及它作为遗传资源的价值,以帮助这种叶菜作物的育种计划。
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Quantitative trait loci analysis of glucosinolate, sugar, and organic acid concentrations in Eruca vesicaria subsp. sativa.

Eruca vesicaria subsp. sativa is a leafy vegetable of the Brassicaceae family known for its pungency. Variation in growing conditions, leaf age, agronomic practices, and variety choice lead to inconsistent quality, especially in content of isothiocyanates (ITCs) and their precursor glucosinolates (GSLs). We present the first linkage and Quantitative Trait Loci (QTL) map for Eruca, generated using a population of 139 F4 lines. A significant environmental effect on the abundance of primary and secondary metabolites was observed, with UK-grown plants containing significantly higher concentrations of glucoraphanin, malic acid, and total sugars. Italian-grown plants were characterized by higher concentrations of glucoerucin, indolic GSLs, and low monosaccharides. 20 QTL were identified and associated with robust SNP markers. Five genes putatively associated with the synthesis of the GSL 4-methoxyglucobrassicin (4MGB) were identified as candidate regulators underlying QTL. Analysis revealed that orthologs of MYB51, IGMT1 and IGMT4 present on LG1 are associated with 4MGB concentrations in Eruca. This research illustrates the utility of the map for identifying genes associated with nutritional composition in Eruca and its value as a genetic resource to assist breeding programs for this leafy vegetable crop.

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来源期刊
Molecular Horticulture
Molecular Horticulture horticultural research-
CiteScore
8.00
自引率
0.00%
发文量
24
审稿时长
12 weeks
期刊介绍: Aims Molecular Horticulture aims to publish research and review articles that significantly advance our knowledge in understanding how the horticultural crops or their parts operate mechanistically. Articles should have profound impacts not only in terms of high citation number or the like, but more importantly on the direction of the horticultural research field. Scope Molecular Horticulture publishes original Research Articles, Letters, and Reviews on novel discoveries on the following, but not limited to, aspects of horticultural plants (including medicinal plants): ▪ Developmental and evolutionary biology ▪ Physiology, biochemistry and cell biology ▪ Plant-microbe and plant-environment interactions ▪ Genetics and epigenetics ▪ Molecular breeding and biotechnology ▪ Secondary metabolism and synthetic biology ▪ Multi-omics dealing with data sets of genome, transcriptome, proteome, metabolome, epigenome and/or microbiome. The journal also welcomes research articles using model plants that reveal mechanisms and/or principles readily applicable to horticultural plants, translational research articles involving application of basic knowledge (including those of model plants) to the horticultural crops, novel Methods and Resources of broad interest. In addition, the journal publishes Editorial, News and View, and Commentary and Perspective on current, significant events and topics in global horticultural fields with international interests.
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