ArticlePlant molecular biology2007
Rapid evolution and complex structural organization in genomic regions harboring multiple prolamin genes in the polyploid wheat genome.
Article in Plant molecular biology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.
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Who cites it
33 citing papers in PubMed, 81 citations in OpenAlex.
- Recent duplications and rare structural variations revealed by comparative sequence analysis of low molecular weight glutenin subunits (LMW-GS) genes re-identified using LMWgsFinder in 26 genomes of the grass family.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Article
- Reviving grain quality in wheat through non-destructive phenotyping techniques like hyperspectral imaging.Food and energy security · 2023Review
- QTL detection for bread wheat processing quality in a nested association mapping population of semi-wild and domesticated wheat varieties.BMC plant biology · 2022Article
- Genome-wide identification, characteristics and expression of the prolamin genes in Thinopyrum elongatum.BMC genomics · 2021Review
- Heteroalleles in Common Wheat: Multiple Differences between Allelic Variants of theInternational journal of molecular sciences · 2021Article
- Glutenin and Gliadin, a Piece in the Puzzle of their Structural Properties in the Cell Described through Monte Carlo Simulations.Biomolecules · 2020Article
- Article
- Genome mapping of seed-borne allergens and immunoresponsive proteins in wheat.Science advances · 2018Article
- Evidence of intralocus recombination at the Glu-3 loci in bread wheat (Triticum aestivum L.).TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2017Article
- Molecular characterization and evolutionary origins of farinin genes in Brachypodium distachyon L.Journal of applied genetics · 2016Article
- Characterization and phylogenetic analysis of α-gliadin gene sequences reveals significant genomic divergence in Triticeae species.Journal of genetics · 2014Article
- Identification and characterization of high-molecular-weight glutenin subunits from Agropyron intermedium.PloS one · 2014Article
- The gene space in wheat: the complete γ-gliadin gene family from the wheat cultivar Chinese Spring.Functional & integrative genomics · 2013Article
- Novel insights into the composition, variation, organization, and expression of the low-molecular-weight glutenin subunit gene family in common wheat.Journal of experimental botany · 2013Article
- Composition and functional analysis of low-molecular-weight glutenin alleles with Aroona near-isogenic lines of bread wheat.BMC plant biology · 2012Article
- Molecular characterization of LMW-GS genes in Brachypodium distachyon L. reveals highly conserved Glu-3 loci in Triticum and related species.BMC plant biology · 2012Article
- Expansion of the gamma-gliadin gene family in Aegilops and Triticum.BMC evolutionary biology · 2012Article
- Celiac disease T-cell epitopes from gamma-gliadins: immunoreactivity depends on the genome of origin, transcript frequency, and flanking protein variation.BMC genomics · 2012Article
- Genome change in wheat observed through the structure and expression of α/β-gliadin genes.Functional & integrative genomics · 2012Article
- Comparative and evolutionary analysis of new variants of ω-gliadin genes from three A-genome diploid wheats.Journal of applied genetics · 2012Article
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Authors and funding
11 authors at 5 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Genes encoding wheat prolamins belong to complicated multi-gene families in the wheat genome. To understand the structural complexity of storage protein loci, we sequenced and analyzed orthologous regions containing both gliadin and LMW-glutenin genes from the A and B genomes of a tetraploid wheat species, Triticum turgidum ssp. durum. Despite their physical proximity to one another, the gliadin genes and LMW-glutenin genes are organized quite differently. The gliadin genes are found to be more clustered than the LMW-glutenin genes which are separated from each other by much larger distances. The separation of the LMW-glutenin genes is the result of both the insertion of large blocks of repetitive DNA owing to the rapid amplification of retrotransposons and the presence of genetic loci interspersed between them. Sequence comparisons of the orthologous regions reveal that gene movement could be one of the major factors contributing to the violation of microcolinearity between the homoeologous A and B genomes in wheat. The rapid sequence rearrangements and differential insertion of repetitive DNA has caused the gene islands to be not conserved in compared regions. In addition, we demonstrated that the i-type LMW-glutenin originated from a deletion of 33-bps in the 5' coding region of the m-type gene. Our results show that multiple rounds of segmental duplication of prolamin genes have driven the amplification of the omega-gliadin genes in the region; such segmental duplication could greatly increase the repetitive DNA content in the genome depending on the amount of repetitive DNA present in the original duplicate region.
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