ArticleGenetics2006
Unequal sister chromatid and homolog recombination at a tandem duplication of the A1 locus in maize.
Article in Genetics, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.
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Who cites it
22 citing papers in PubMed.
- The plant early recombinosome: a high security complex to break DNA during meiosis.Plant reproduction · 2024Review
- Subtelomeric 5-enolpyruvylshikimate-3-phosphate synthase copy number variation confers glyphosate resistance in Eleusine indica.Nature communications · 2023Article
- Legume Pangenome: Status and Scope for Crop Improvement.Plants (Basel, Switzerland) · 2022Review
- How the pan-genome is changing crop genomics and improvement.Genome biology · 2021Review
- High frequency DNA rearrangement atCommunications biology · 2019Article
- Tandem Duplicate Genes in Maize Are Abundant and Date to Two Distinct Periods of Time.G3 (Bethesda, Md.) · 2018Article
- Sequence analysis of European maize inbred line F2 provides new insights into molecular and chromosomal characteristics of presence/absence variants.BMC genomics · 2018Article
- A Critical Assessment of 60 Years of Maize Intragenic Recombination.Frontiers in plant science · 2018Review
- The sh2-R allele of the maize shrunken-2 locus was caused by a complex chromosomal rearrangement.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2015Article
- Inferring mechanisms of copy number change from haplotype structures at the human DEFA1A3 locus.BMC genomics · 2014Article
- Editor's choice: Crop genome plasticity and its relevance to food and feed safety of genetically engineered breeding stacks.Plant physiology · 2012Review
- Pervasive gene content variation and copy number variation in maize and its undomesticated progenitor.Genome research · 2010Article
- The amplification and evolution of orthologous 22-kDa α-prolamin tandemly arrayed genes in coix, sorghum and maize genomes.Plant molecular biology · 2010Article
- Divergence of gene regulation through chromosomal rearrangements.BMC genomics · 2010Article
- Natural diversity in flowering responses of Arabidopsis thaliana caused by variation in a tandem gene array.Genetics · 2010Article
- Maize inbreds exhibit high levels of copy number variation (CNV) and presence/absence variation (PAV) in genome content.PLoS genetics · 2009Article
- Genome sequence comparison of Col and Ler lines reveals the dynamic nature of Arabidopsis chromosomes.Nucleic acids research · 2009Article
- Change of gene structure and function by non-homologous end-joining, homologous recombination, and transposition of DNA.PLoS genetics · 2009Article
- Maize genome structure variation: interplay between retrotransposon polymorphisms and genic recombination.The Plant cell · 2008Article
- Role of RAD51 in the repair of MuDR-induced double-strand breaks in maize (Zea mays L.).Genetics · 2008Article
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Tandemly arrayed duplicate genes are prevalent. The maize A1-b haplotype is a tandem duplication that consists of the components, alpha and beta. The rate of meiotic unequal recombination at A1-b is ninefold higher when a homolog is present than when it is absent (i.e., hemizygote). When a sequence heterologous homolog is available, 94% of recombinants (264/281) are generated via recombination with the homolog rather than with the sister chromatid. In addition, 83% (220/264) of homolog recombination events involved alpha rather than beta. These results indicate that: (1) the homolog is the preferred template for unequal recombination and (2) pairing of the duplicated segments with the homolog does not occur randomly but instead favors a particular configuration. The choice of recombination template (i.e., homolog vs. sister chromatid) affects the distribution of recombination breakpoints within a1. Rates of unequal recombination at A1-b are similar to the rate of recombination between nonduplicated a1 alleles. Unequal recombination is therefore common and is likely to be responsible for the generation of genetic variability, even within inbred lines.
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