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Updated: May 8, 2026

In Situ Hybridization for the Precise Localization of Transcripts in Plants

In Situ Hybridization for the Precise Localization of Transcripts in Plants

Published on: November 23, 2011

Functional genomic perspectives on plant terrestrialization.

Cäcilia F Kunz¹, Elisa S Goldbecker¹, Jan de Vries²

¹Institute for Microbiology and Genetics, Department of Applied Bioinformatics, University of Goettingen, Goldschmidtstrasse 1, 37077 Goettingen, Germany.

Trends in Genetics : TIG

|March 28, 2025

Summary

This summary is machine-generated.

Many genes crucial for land plants originated in ancient algae, not as new innovations. Research confirms these shared genes enabled key traits for plant terrestrialization.

Keywords:

Streptophyta comparative and evolutionary analyses functional genomics plant evolution plant terrestrialization

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Area of Science:

Evolutionary biology
Genomics
Plant science

Background:

Recent advances in phylogenomics provide a robust framework for studying early land plant evolution.
Comparative genomics reveals that many genes fundamental to land plants have deep evolutionary roots in streptophyte algae.

Purpose of the Study:

To investigate whether genes shared between land plants and streptophyte algae are functional homologs or spurious.
To understand the functional significance of gene cohorts in the context of plant terrestrialization.

Main Methods:

Comparative genomics using streptophyte algae genome data.
High-throughput approaches to analyze functional significance of gene homologs.
Identification of recurrent functional themes across species.

Main Results:

Genes involved in transcription regulation, morphogenesis, metabolism, and hormone signaling are ancient, predating land plant emergence.
Functional analysis confirms the role of these ancient genes in actualizing key land plant traits.
Recurrent functional themes were identified, defining a genetic toolkit for terrestrial life.

Conclusions:

The terrestrialization of plants was facilitated by pre-existing genetic toolkits inherited from algal ancestors.
Comparative genomics and functional analyses are crucial for defining the evolutionary origins of complex traits.
Understanding gene homology and function provides insights into major evolutionary transitions.