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Updated: Feb 8, 2026
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Fabrication and Implantation of Miniature Dual-element Strain Gages for Measuring In Vivo Gastrointestinal Contractions in Rodents.
Published on: September 18, 2014
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Multigenome analysis implicates miniature inverted-repeat transposable elements (MITEs) in metabolic diversification
Alexander M Boutanaev1, Anne E Osbourn2
1Institute of Basic Biological Problems, Russian Academy of Sciences, Pushchino, 142290 Moscow Region, Russia; boutanaev@mail.ru anne.osbourn@jic.ac.uk.
Summary
Transposable elements (TEs), particularly miniature inverted-repeat TEs, likely drive the formation of plant biosynthetic gene clusters. This mechanism, involving gene duplication and relocation, emerged in eudicots millions of years ago.
Area of Science:
- Plant genomics
- Molecular evolution
- Natural product biosynthesis
Background:
- Plant genomes contain natural product biosynthetic gene clusters, but their formation mechanisms are unclear.
- Transposable elements (TEs) are known to mediate genomic rearrangements and are found in plant gene clusters.
Purpose of the Study:
- To systematically analyze TEs associated with plant terpene biosynthetic gene clusters.
- To investigate the evolutionary origin of gene cluster formation mechanisms in eudicots.
Main Methods:
- Comparative genomics analysis of TEs in terpene biosynthetic gene clusters across multiple plant species.
- Phylogenetic analysis of gene duplication and diversification events.
Main Results:
- Evidence suggests miniature inverted-repeat transposable elements (MITEs) play a role in eudicot gene cluster formation.
- The "block" mechanism of cluster founding, involving terpene synthase and cytochrome P450 gene pairs, originated 90-130 million years ago in eudicots.
Conclusions:
- Transposable elements are key drivers of plant biosynthetic gene cluster evolution.
- The "block" mechanism of cluster formation is ancient within eudicots, predating the superrosid clade.
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