Diversification of ranunculaceous petals in shape supports a generalized model for plant lateral organ morphogenesis and evolution.
Diversification of ranunculaceous petals in shape supports a generalized model for plant lateral organ morphogenesis and evolution.
复制标题
毛花科花瓣在形状上的多样性支持了植物侧器官形态发生和进化的一般模型。
DOI：
10.1126/sciadv.adf8049
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发表时间：
2023-04-21
期刊：
影响因子：
13.6
通讯作者：
Kong, Hongzhi
中科院分区：
文献类型：
--
作者：
Cheng, Jie;Yao, Xu;Li, Xukun;Yue, Liang;Duan, Xiaoshan;Li, Boka;Fu, Xuehao;Li, Shuixian;Shan, Hongyan;Yin, Xiaofeng;Whitewoods, Christopher;Coen, Enrico;Kong, Hongzhi
骨盆器官，如食肉植物的捕捉猎物的陷阱和毛茛属植物的蜜腺花瓣，在自然界中广泛存在，几个世纪以来一直吸引和困扰着科学家。在一些肉食性植物中，正面/背面基因表达域的变化已被证明可以控制叶片的形成，但其他叶柄器官产生的机制尚不清楚。在这里，我们发现各种盆状毛茛花瓣的形成也是由正面/背面基因表达域的变化引起的，随后是分化的区域生长雕刻边缘和/或器官的其他部分。通过引入参数来指定移位和生长的时间、位置和程度，我们进一步提出了一个广义的建模系统，通过该系统可以模拟各种单面、双面和骨盆器官。这些结果表明存在一个分层的形态空间系统，并为理解植物器官多样化的机制铺平了道路。各种单面、双面和盆状植物的侧面器官现在可以在一个基于单极的建模系统中模拟。
Peltate organs, such as the prey-capturing traps of carnivorous plants and nectary-bearing petals of ranunculaceous species, are widespread in nature and have intrigued and perplexed scientists for centuries. Shifts in the expression domains of adaxial/abaxial genes have been shown to control leaf peltation in some carnivorous plants, yet the mechanisms underlying the generation of other peltate organs remain unclear. Here, we show that formation of various peltate ranunculaceous petals was also caused by shifts in the expression domains of adaxial/abaxial genes, followed by differentiated regional growth sculpting the margins and/or other parts of the organs. By inducing parameters to specify the time, position, and degree of the shifts and growth, we further propose a generalized modeling system, through which various unifacial, bifacial, and peltate organs can be simulated. These results demonstrate the existence of a hierarchical morphospace system and pave the way to understand the mechanisms underlying plant organ diversification. Various unifacial, bifacial, and peltate plant lateral organs can now be simulated in a single polarity-based modeling system.
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影响因子：
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作者：
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