Multiple origins of lipid‐based structural colors contribute to a gradient of fruit colors in Viburnum (Adoxaceae)
Multiple origins of lipid‐based structural colors contribute to a gradient of fruit colors in Viburnum (Adoxaceae)
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基于脂质的结构颜色的多种来源导致了荚莲属植物（Adoxaceae）果实颜色的梯度
DOI：
10.1111/nph.18538
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发表时间：
2023
期刊：
影响因子：
9.4
通讯作者：
Donoghue, Michael J.
中科院分区：
文献类型：
--
作者：
Sinnott‐Armstrong, Miranda A.;Middleton, Rox;Ogawa, Yu;Jacucci, Gianni;Moyroud, Edwige;Glover, Beverley J.;Rudall, Paula J.;Vignolini, Silvia;Donoghue, Michael J.
相对于动物，植物的结构色知之甚少。在水果中，只有少数情况被描述过，包括荚莲（Viburnum tinus），其中蓝色是由脂滴制成的无序多层反射器造成的。在这里，我们研究了荚属果实结构色的更广泛的进化背景。我们从跨越整个进化史的30个荚属物种中获得了新鲜的和植物标本的果实材料，并使用透射电子显微镜，光学模拟和祖先状态重建来确定每个物种中光子结构的存在/不存在，了解新鉴定的物种中产生结构色的机制，将Viburnum dentatum细胞壁结构的发育与反射率联系起来，并描述了荚属植物细胞壁结构的演变。我们确定了至少两个（可能三个）蓝色果实颜色的起源于Viburnumin物种，该物种产生由嵌入细胞壁的脂滴组成的大型光子结构，并反射蓝光。在PL中产生颜色，包括结构色以及色素，将产生对水果颜色的多样性、生态学和进化的进一步了解。
Structural color is poorly known in plants relative to animals. In fruits, only a handful of cases have been described, including inViburnum tinuswhere the blue color results from a disordered multilayered reflector made of lipid droplets. Here, we examine the broader evolutionary context of fruit structural color across the genusViburnum.We obtained fresh and herbarium fruit material from 30Viburnumspecies spanning the phylogeny and used transmission electron microscopy, optical simulations, and ancestral state reconstruction to identify the presence/absence of photonic structures in each species, understand the mechanism producing structural color in newly identified species, relate the development of cell wall structure to reflectance inViburnum dentatum, and describe the evolution of cell wall architecture acrossViburnum.We identify at least two (possibly three) origins of blue fruit color inViburnumin species which produce large photonic structures made of lipid droplets embedded in the cell wall and which reflect blue light.Examining the full spectrum of mechanisms producing color in pl, including structural color as well as pigments, will yield further insights into the diversity, ecology, and evolution of fruit color.