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首页> 美国卫生研究院文献>Frontiers in Plant Science >Leaf polyphenol profile and SSR-based fingerprinting of new segregant Cynara cardunculus genotypes
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Leaf polyphenol profile and SSR-based fingerprinting of new segregant Cynara cardunculus genotypes

机译：叶多酚基因型和基于SSR的新分离型Cynara小心un基因型的指纹图谱

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The dietary value of many plant polyphenols lies in the protection given against degenerative pathologies. Their in planta role is associated with the host's defense response against biotic and abiotic stress. The polyphenol content of a given plant tissue is strongly influenced by the growing environment, but is also genetically determined. Plants belonging to the Cynara cardunculus species (globe artichoke and the cultivated and wild cardoon) accumulate substantial quantities of polyphenols mainly mono and di-caffeoylquinic acid (CQA) in their foliage. Transgressive segregation for CQA content in an F1 population bred from a cross between a globe artichoke and a cultivated cardoon led to the selection of eight segregants which accumulated more CQA in their leaves than did those of either of their parental genotypes. The selections were grown over two seasons to assess their polyphenol profile (CQAs, apigenin and luteolin derivatives and narirutin), and were also fingerprinted using a set of 217 microsatellite markers. The growing environment exerted a strong effect on polyphenol content, but two of the selections were able to accumulate up to an order of magnitude more CQA than either parent in both growing seasons. Since the species is readily vegetatively propagable, such genotypes can be straightforwardly exploited as a source of pharmaceutically valuable compounds, while their SSR-based fingerprinting will allow the genetic identity of clonally propagated material to be easily verified.
机译：许多植物多酚的饮食价值在于可以预防退变病。它们在植物中的作用与宿主对生物和非生物胁迫的防御反应有关。给定植物组织中多酚的含量受生长环境的强烈影响，但也是遗传决定的。属于Cynara cardunculus物种的植物（朝鲜蓟，栽培的和野生的菜蓟）在其叶子中积累了大量的多酚，主要是单和二咖啡酰奎尼酸（CQA）。从朝鲜蓟和耕种的菜豆杂交产生的F1群体中，CQA含量的过分分离导致选择了8个分离子，这些分离子在其叶片中积累的CQA比任何一个亲本基因型的都要多。选择物生长两个季节以评估其多酚谱（CQAs，芹菜素和木犀草素衍生物和那鲁丁），并使用一组217个微卫星标记物进行指纹识别。生长环境对多酚含量有很强的影响，但是在两个生长季节，其中两个选择的累积CQA比任一亲本高出一个数量级。由于该物种易于营养繁殖，因此可以直接利用此类基因型作为药学上有价值的化合物的来源，而基于SSR的指纹图谱则可以轻松验证克隆繁殖材料的遗传特性。

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