Cauliflower fractal forms arise from perturbations of floral gene networks

doi:10.1126/science.abg5999

GSTDTAP > 气候变化

DOI	10.1126/science.abg5999
	Cauliflower fractal forms arise from perturbations of floral gene networks
	Eugenio Azpeitia; Gabrielle Tichtinsky; Marie Le Masson; Antonio Serrano-Mislata; Jérémy Lucas; Veronica Gregis; Carlos Gimenez; Nathanaël Prunet; Etienne Farcot; Martin M. Kater; Desmond Bradley; Francisco Madueño; Christophe Godin; Francois Parcy
	2021-07-09
发表期刊	Science
出版年	2021
英文摘要	Cauliflower, along with dahlias and daisies, develop as phyllotactic spirals. Azpeitia et al. combined modeling with experimental investigation to clarify the gene-regulatory network that sets up a multitude of undeveloped flowers to form a cauliflower curd. Irrepressible inflorescence identity genes in the context of dysfunctional meristems and slow internode elongation result in piles of incomplete flowers. If meristem size drifts during organogenesis, then the conical structures of the Romanesco form emerge in fractal formation. Science , abg5999, this issue p. [192][1] Throughout development, plant meristems regularly produce organs in defined spiral, opposite, or whorl patterns. Cauliflowers present an unusual organ arrangement with a multitude of spirals nested over a wide range of scales. How such a fractal, self-similar organization emerges from developmental mechanisms has remained elusive. Combining experimental analyses in an Arabidopsis thaliana cauliflower-like mutant with modeling, we found that curd self-similarity arises because the meristems fail to form flowers but keep the “memory” of their transient passage in a floral state. Additional mutations affecting meristem growth can induce the production of conical structures reminiscent of the conspicuous fractal Romanesco shape. This study reveals how fractal-like forms may emerge from the combination of key, defined perturbations of floral developmental programs and growth dynamics. [1]: /lookup/doi/10.1126/science.abg5999
领域	气候变化 ; 资源环境
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文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/334261
专题	气候变化资源环境科学
推荐引用方式 GB/T 7714	Eugenio Azpeitia,Gabrielle Tichtinsky,Marie Le Masson,et al. Cauliflower fractal forms arise from perturbations of floral gene networks[J]. Science,2021.
APA	Eugenio Azpeitia.,Gabrielle Tichtinsky.,Marie Le Masson.,Antonio Serrano-Mislata.,Jérémy Lucas.,...&Francois Parcy.(2021).Cauliflower fractal forms arise from perturbations of floral gene networks.Science.
MLA	Eugenio Azpeitia,et al."Cauliflower fractal forms arise from perturbations of floral gene networks".Science (2021).