HomePublications

Evolution of carnivorous traps from planar leaves through simple shifts in gene expression

Research output: Contribution to journalArticle

Open Access permissions

Open

Documents

DOI

Authors

Abstract

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.

Details

Original languageEnglish
Pages (from-to)91-96
Number of pages6
JournalScience
Volume367
Issue number6473
DOIs
Publication statusPublished - 3 Jan 2020
Peer-reviewedYes
Externally publishedYes

Keywords

    Research areas

  • TISSUE CELL POLARITY, LEAF, GROWTH, FRAMEWORK

View graph of relations

ID: 182072344

Related by author
  1. When causation does not imply correlation

    Research output: Chapter in Book/Report/Conference proceedingChapter

  2. Volumetric finite-element modelling of biological growth

    Research output: Contribution to journalArticle

  3. Early shaping of a leaf

    Research output: Contribution to journalLetter

Related by journal
  1. Breeding a fungal gene into wheat

    Research output: Contribution to journalArticle

  2. The human imperative of stabilizing global climate change at 1.5°C

    Research output: Contribution to journalArticle