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DOI10.1126/science.aay5433
Evolution of carnivorous traps from planar leaves through simple shifts in gene expression
Whitewoods C.D.; Gonçalves B.; Cheng J.; Cui M.; Kennaway R.; Lee K.; Bushell C.; Yu M.; Piao C.; Coen E.
发表日期2020
ISSN0036-8075
起始页码91
结束页码96
卷号367期号:6473
英文摘要Leaves vary from planar sheets and needle-like structures to elaborate cup-shaped traps. Here, we show that in the carnivorous plant Utricularia gibba, the upper leaf (adaxial) domain is restricted to a small region of the primordium that gives rise to the trap's inner layer. This restriction is necessary for trap formation, because ectopic adaxial activity at early stages gives radialized leaves and no traps. We present a model that accounts for the formation of both planar and nonplanar leaves through adaxial-abaxial domains of gene activity establishing a polarity field that orients growth. In combination with an orthogonal proximodistal polarity field, this system can generate diverse leaf forms and account for the multiple evolutionary origins of cup-shaped leaves through simple shifts in gene expression. © 2020 American Association for the Advancement of Science. All rights reserved.
关键词carnivorous plantdicotyledongene expressionleafleaf morphologytrappingarticlecarnivorous plantgene expressionnonhumanplant leafprimordiumUtricularia gibba
语种英语
来源机构Science
文献类型期刊论文
条目标识符http://gcip.llas.ac.cn/handle/2XKMVOVA/133805
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GB/T 7714
Whitewoods C.D.,Gonçalves B.,Cheng J.,et al. Evolution of carnivorous traps from planar leaves through simple shifts in gene expression[J]. Science,2020,367(6473).
APA Whitewoods C.D..,Gonçalves B..,Cheng J..,Cui M..,Kennaway R..,...&Coen E..(2020).Evolution of carnivorous traps from planar leaves through simple shifts in gene expression.,367(6473).
MLA Whitewoods C.D.,et al."Evolution of carnivorous traps from planar leaves through simple shifts in gene expression".367.6473(2020).
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