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Exploring the chemotypes underlying important agronomic and consumer traits in cassava (Manihot esculenta Crantz)
Journal of Plant Physiology ( IF 4.0 ) Pub Date : 2020-08-01 , DOI: 10.1016/j.jplph.2020.153206 Margit Drapal 1 , Tatiana M Ovalle Rivera 2 , Luis Augusto Becerra Lopez-Lavalle 2 , Paul D Fraser 1
Journal of Plant Physiology ( IF 4.0 ) Pub Date : 2020-08-01 , DOI: 10.1016/j.jplph.2020.153206 Margit Drapal 1 , Tatiana M Ovalle Rivera 2 , Luis Augusto Becerra Lopez-Lavalle 2 , Paul D Fraser 1
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A broad diversity of phenotypes are available within the cassava germplasm collections. The phenotypes include improved nutritional, starch or culinary root quality as well as abiotic and biotic resistance properties. Some of these traits can be found naturally occurring in cassava landraces, whereas others are the result of targeted breeding efforts. For future breeding programmes it is important to know the underlying mechanisms of these desirable traits. Metabolomics can assist in the elucidation of these mechanisms by measuring the end products of the cellular processes conferring the traits of interest. The present study focused on the comparison of two or more variants of the same trait such as high and low culinary quality or resistance and susceptibility to thrips. Overall, eight different traits were assessed. Results showed that amino acids and umami compounds were associated with superior culinary attributes and the phenylpropanoid superpathway plays an important role in pest resistance. Furthermore, the data highlighted a low chemodiversity in African cassavas and that the source-sink relation was still active at the harvest stage.
中文翻译：
探索木薯重要农艺性状和消费者性状背后的化学型 (Manihot esculenta Crantz)
木薯种质收集品中提供了广泛多样的表型。表型包括改善的营养、淀粉或烹饪根质量以及非生物和生物抗性特性。其中一些特性可以在木薯地方品种中自然发生，而其他特性则是有针对性的育种努力的结果。对于未来的育种计划，了解这些理想特性的潜在机制非常重要。代谢组学可以通过测量赋予感兴趣特征的细胞过程的最终产物来帮助阐明这些机制。本研究的重点是比较相同性状的两个或多个变体，例如高和低烹饪质量或对蓟马的抗性和易感性。总的来说，评估了八种不同的特征。结果表明，氨基酸和鲜味化合物与优良的烹饪属性相关，苯丙素超途径在害虫抗性中起着重要作用。此外，数据强调了非洲木薯的低化学多样性，并且在收获阶段源库关系仍然活跃。
更新日期：2020-08-01
中文翻译：
探索木薯重要农艺性状和消费者性状背后的化学型 (Manihot esculenta Crantz)
木薯种质收集品中提供了广泛多样的表型。表型包括改善的营养、淀粉或烹饪根质量以及非生物和生物抗性特性。其中一些特性可以在木薯地方品种中自然发生，而其他特性则是有针对性的育种努力的结果。对于未来的育种计划，了解这些理想特性的潜在机制非常重要。代谢组学可以通过测量赋予感兴趣特征的细胞过程的最终产物来帮助阐明这些机制。本研究的重点是比较相同性状的两个或多个变体，例如高和低烹饪质量或对蓟马的抗性和易感性。总的来说，评估了八种不同的特征。结果表明，氨基酸和鲜味化合物与优良的烹饪属性相关，苯丙素超途径在害虫抗性中起着重要作用。此外，数据强调了非洲木薯的低化学多样性，并且在收获阶段源库关系仍然活跃。
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