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Updated: Jun 21, 2026
14:23
Recombineering Homologous Recombination Constructs in Drosophila
Published on: July 13, 2013
Bridging paradoxes in recombination at NLR cluster: A structural genomics perspective
Gianluca Teano1, Alexandre Roudaut1, Ariane Gratias1
1Université Paris-Saclay, CNRS, INRAE, Université Evry, Institute of Plant Sciences Paris-Saclay (IPS2), 91190, Gif sur Yvette, France.
Current Opinion in Plant Biology
|June 19, 2026
Summary
Plant immune receptor gene clusters (NLRs) show varied recombination rates, impacting diversity. Recent advances reveal structural variations influencing these rates, offering new evolutionary insights.
Area of Science:
- Genetics
- Plant Biology
- Evolutionary Biology
Background:
- Nucleotide-binding domain, leucine-rich repeat (NLR) genes are crucial for plant immunity.
- Recombination rates at NLR gene clusters are paradoxically high or suppressed, affecting allelic diversity.
- Structural variations at these loci have been difficult to study.
Purpose of the Study:
- To review recent technological advances in sequencing complex NLR clusters.
- To highlight how structural variation impacts meiotic recombination in NLR clusters.
- To discuss the evolutionary implications of these findings for plant immunity.
Main Methods:
- Review of recent literature and technological advancements in genome sequencing.
- Analysis of structural variations within NLR clusters across diverse plant species.
- Discussion of the relationship between structural variation and meiotic recombination.
Main Results:
- Genome sequencing advances have uncovered extensive structural variation at NLR clusters.
- This structural variation helps explain the contrasting recombination rates observed.
- Examples from various plant species illustrate the diversity of NLR cluster structures.
Conclusions:
- Structural variation is a key factor shaping recombination patterns in NLR clusters.
- Understanding these variations is crucial for comprehending plant immune system evolution.
- Future research should focus on the functional consequences of structural variation in NLR clusters.
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