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Related Concept Videos

Morphogenesis02:19

Morphogenesis

Plant morphogenesis—the development of a plant’s form and structure—involves several overlapping developmental processes, including growth and cell differentiation. Precursor cells differentiate into specific cell types, which are organized into the tissues and organ systems that make up the functional plant.

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Related Experiment Video

Updated: May 12, 2026

Long-term, High-resolution Confocal Time Lapse Imaging of Arabidopsis Cotyledon Epidermis during Germination
12:01

Long-term, High-resolution Confocal Time Lapse Imaging of Arabidopsis Cotyledon Epidermis during Germination

Published on: December 31, 2012

A transcriptomic hourglass in plant embryogenesis.

Marcel Quint1, Hajk-Georg Drost, Alexander Gabel

  • 1Leibniz Institute of Plant Biochemistry, Department of Molecular Signal Processing, Weinberg 3, 06120 Halle (Saale), Germany. mquint@ipb-halle.de

Nature
|September 7, 2012
PubMed
Summary
This summary is machine-generated.

This study reveals a molecular embryonic hourglass in Arabidopsis thaliana, mirroring patterns in animals. This finding suggests a conserved logic of embryogenesis across kingdoms, despite differing morphological development.

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Related Experiment Videos

Last Updated: May 12, 2026

Long-term, High-resolution Confocal Time Lapse Imaging of Arabidopsis Cotyledon Epidermis during Germination
12:01

Long-term, High-resolution Confocal Time Lapse Imaging of Arabidopsis Cotyledon Epidermis during Germination

Published on: December 31, 2012

Efficient and Rapid Isolation of Early-stage Embryos from Arabidopsis thaliana Seeds
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Efficient and Rapid Isolation of Early-stage Embryos from Arabidopsis thaliana Seeds

Published on: June 7, 2013

A Method for Characterizing Embryogenesis in Arabidopsis
10:24

A Method for Characterizing Embryogenesis in Arabidopsis

Published on: August 4, 2017

Area of Science:

  • Developmental Biology
  • Evolutionary Biology
  • Genomics

Background:

  • Embryogenesis, the initial phase of animal and plant development, evolved independently in both lineages.
  • The embryonic hourglass model, characterized by early divergence, mid-embryogenesis convergence (phylotypic stage), and later divergence, is well-supported in animals.
  • While molecular evidence exists for the animal hourglass, it has not been reported in plants.

Purpose of the Study:

  • To investigate the presence of a molecular embryonic hourglass in plants.
  • To compare molecular and morphological developmental patterns in plants.
  • To explore the evolutionary conservation of embryogenesis logic across kingdoms.

Main Methods:

  • Phylotranscriptomic analysis of Arabidopsis thaliana embryos.
  • Utilized two complementary analytical approaches.
  • Compared gene expression profiles during embryogenesis.

Main Results:

  • Provided phylotranscriptomic evidence for a molecular embryonic hourglass in Arabidopsis thaliana.
  • Demonstrated high conservation of gene expression during the phylotypic stage in plants.
  • Observed potential uncoupling of morphological and molecular patterns in plant development.

Conclusions:

  • The molecular embryonic hourglass is present in plants, indicating convergent evolution.
  • Embryogenesis exhibits a conserved molecular logic across kingdoms (animals and plants).
  • Morphological and molecular developmental patterns may be uncoupled in plants.