The evolution of flavonoid biosynthesis.

IF 5.4 2区 生物学 Q1 BIOLOGY
Kevin M Davies, Christelle M Andre, Samarth Kulshrestha, Yanfei Zhou, Kathy E Schwinn, Nick W Albert, David Chagné, John W van Klink, Marco Landi, John L Bowman
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引用次数: 0

Abstract

The flavonoid pathway is characteristic of land plants and a central biosynthetic component enabling life in a terrestrial environment. Flavonoids provide tolerance to both abiotic and biotic stresses and facilitate beneficial relationships, such as signalling to symbiont microorganisms, or attracting pollinators and seed dispersal agents. The biosynthetic pathway shows great diversity across species, resulting principally from repeated biosynthetic gene duplication and neofunctionalization events during evolution. Such events may reflect a selection for new flavonoid structures with novel functions that enable occupancy of varied ecological niches. However, the biochemical and genetic diversity of the pathway also likely resulted from evolution along parallel trends across land plant lineages, producing variant compounds with similar biological functions. Analyses of the wide range of whole-plant genome sequences now available, particularly for archegoniate plants, have enabled proposals on which genes were ancestral to land plants and which arose within the land plant lineages. In this review, we discuss the emerging proposals for how the flavonoid pathway may have evolved and diversified. This article is part of the theme issue 'The evolution of plant metabolism'.

类黄酮生物合成的演变。
类黄酮途径是陆生植物的特征,也是陆地环境中生命的核心生物合成成分。黄酮类化合物能够耐受非生物和生物压力,并促进有益的关系,例如向共生微生物发出信号,或吸引授粉者和种子传播者。生物合成途径在不同物种间表现出极大的多样性,这主要是由于生物合成基因在进化过程中反复复制和新功能化事件造成的。这些事件可能反映了对具有新功能的新黄酮类化合物结构的选择,从而使其能够占据不同的生态位。不过,该途径的生化和遗传多样性也可能是陆生植物各系间平行进化的结果,产生了具有类似生物功能的变异化合物。通过对现有的大量全植物基因组序列,特别是原生植物基因组序列进行分析,可以提出哪些基因是陆生植物的祖先,哪些基因是陆生植物系内产生的。在这篇综述中,我们将讨论关于类黄酮途径如何进化和多样化的新建议。本文是主题 "植物新陈代谢的进化 "的一部分。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
11.80
自引率
1.60%
发文量
365
审稿时长
3 months
期刊介绍: The journal publishes topics across the life sciences. As long as the core subject lies within the biological sciences, some issues may also include content crossing into other areas such as the physical sciences, social sciences, biophysics, policy, economics etc. Issues generally sit within four broad areas (although many issues sit across these areas): Organismal, environmental and evolutionary biology Neuroscience and cognition Cellular, molecular and developmental biology Health and disease.
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