ArticlePlant reproduction2023
Why do plants need the ZMM crossover pathway? A snapshot of meiotic recombination from the perspective of interhomolog polymorphism.
Article in Plant reproduction, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 19 citations in OpenAlex.
- SNI1/NSE5 is a cold-sensitive brake on class II crossovers in Arabidopsis.Nature plants · 2026Article
- Breeding better crops: lessons from the homologous recombination pathway.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2026Review
- An overview of recent advances on wheat homologous and homoeologous recombination.Journal of experimental botany · 2026Review
- Enhancing local meiotic crossovers in Arabidopsis and maize through juxtaposition of heterozygous and homozygous regions.Nature plants · 2025Article
- Genetic dissection of MutL complexes in Arabidopsis meiosis.Nucleic acids research · 2025Article
- Accumulation ofFrontiers in plant science · 2025Article
- Epigenetic regulation during meiosis and crossover.Physiology and molecular biology of plants : an international journal of functional plant biology · 2023Review
- MSH2 stimulates interfering and inhibits non-interfering crossovers in response to genetic polymorphism.Nature communications · 2023Article
- The effect of DNA polymorphisms and natural variation on crossover hotspot activity in Arabidopsis hybrids.Nature communications · 2023Article
- Crossover interference mechanism: New lessons from plants.Frontiers in cell and developmental biology · 2023Review
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Authors and funding
1 author at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
At the heart of meiosis is crossover recombination, i.e., reciprocal exchange of chromosome fragments between parental genomes. Surprisingly, in most eukaryotes, including plants, several recombination pathways that can result in crossover event operate in parallel during meiosis. These pathways emerged independently in the course of evolution and perform separate functions, which directly translate into their roles in meiosis. The formation of one crossover per chromosome pair is required for proper chromosome segregation. This "obligate" crossover is ensured by the major crossover pathway in plants, and in many other eukaryotes, known as the ZMM pathway. The secondary pathways play important roles also in somatic cells and function mainly as repair mechanisms for DNA double-strand breaks (DSBs) not used for crossover formation. One of the consequences of the functional differences between ZMM and other DSB repair pathways is their distinct sensitivities to polymorphisms between homologous chromosomes. From a population genetics perspective, these differences may affect the maintenance of genetic variability. This might be of special importance when considering that a significant portion of plants uses inbreeding as a predominant reproductive strategy, which results in loss of interhomolog polymorphism. While we are still far from fully understanding the relationship between meiotic recombination pathways and genetic variation in populations, recent studies of crossovers in plants offer a new perspective.
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