ArticleProceedings of the National Academy of Sciences of the United States of America2002
Genes encoding plastid acetyl-CoA carboxylase and 3-phosphoglycerate kinase of the Triticum/Aegilops complex and the evolutionary history of polyploid wheat.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 271 papers.
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271 citing papers in PubMed, 627 citations in OpenAlex.
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- Rethinking polyphenol oxidases in wheat: beyond the "low-PPO is always better" paradigm.Frontiers in genetics · 2026Review
- Distinct evolutionary trajectories of subgenomic centromeres in polyploid wheat.Genome biology · 2025Article
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- Mating systems and recombination landscape strongly shape genetic diversity and selection in wheat relatives.Evolution letters · 2024Article
- Genome constitution and evolution of Elymus atratus (Poaceae: Triticeae) inferred from cytogenetic and phylogenetic analysis.Genes & genomics · 2024Article
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- Sequencing 4.3 million mutations in wheat promoters to understand and modify gene expression.Proceedings of the National Academy of Sciences of the United States of America · 2023Article
- Lifting of the 1,000 wheat exome project SNPs from Triticum aestivum cv. Chinese Spring assembly RefSeq v1.0 to RefSeq v2.1.BMC research notes · 2023Article
- Exome-based new allele-specific PCR markers and transferability for sodicity tolerance in bread wheat (Plant direct · 2023Article
- Low impact of polyploidization on the transcriptome of synthetic allohexaploid wheat.BMC genomics · 2023Article
- The impact of growth at elevated [CO2] on stomatal anatomy and behavior differs between wheat species and cultivars.Journal of experimental botany · 2023Article
- Global transcriptome analysis of allopolyploidization reveals large-scale repression of the D-subgenome in synthetic hexaploid wheat.Communications biology · 2023Article
- WheatCENet: A Database for Comparative Co-expression Networks Analysis of Allohexaploid Wheat and Its Progenitors.Genomics, proteomics & bioinformatics · 2023Article
- Identification, characterization and expression analysis of wheat RSH family genes under abiotic stress.Frontiers in plant science · 2023Article
- The grain quality of wheat wild relatives in the evolutionary context.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2022Review
211 more citing papers are in PubMed but not listed here.
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Authors and funding
7 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The classic wheat evolutionary history is one of adaptive radiation of the diploid Triticum/Aegilops species (A, S, D), genome convergence and divergence of the tetraploid (Triticum turgidum AABB, and Triticum timopheevii AAGG) and hexaploid (Triticum aestivum, AABBDD) species. We analyzed Acc-1 (plastid acetyl-CoA carboxylase) and Pgk-1 (plastid 3-phosphoglycerate kinase) genes to determine phylogenetic relationships among Triticum and Aegilops species of the wheat lineage and to establish the timeline of wheat evolution based on gene sequence comparisons. Triticum urartu was confirmed as the A genome donor of tetraploid and hexaploid wheat. The A genome of polyploid wheat diverged from T. urartu less than half a million years ago (MYA), indicating a relatively recent origin of polyploid wheat. The D genome sequences of T. aestivum and Aegilops tauschii are identical, confirming that T. aestivum arose from hybridization of T. turgidum and Ae. tauschii only 8,000 years ago. The diploid Triticum and Aegilops progenitors of the A, B, D, G, and S genomes all radiated 2.5-4.5 MYA. Our data suggest that the Acc-1 and Pgk-1 loci have different histories in different lineages, indicating genome mosaicity and significant intraspecific differentiation. Some loci of the S genome of Aegilops speltoides and the G genome of T. timophevii are closely related, suggesting the same origin of some parts of their genomes. None of the Aegilops genomes analyzed is a close relative of the B genome, so the diploid progenitor of the B genome remains unknown.
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