ArticleProceedings of the National Academy of Sciences of the United States of America2008
Acc homoeoloci and the evolution of wheat genomes.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 89 papers.
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89 citing papers in PubMed.
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- Perturbation of protein homeostasis brings plastids at the crossroad between repair and dismantling.PLoS genetics · 2023Article
- The wheat stem rust resistance gene Sr43 encodes an unusual protein kinase.Nature genetics · 2023Article
- Genome-wide identification of biotin carboxyl carrier subunits of acetyl-CoA carboxylase in Brassica and their role in stress tolerance in oilseed Brassica napus.BMC genomics · 2022Article
- Do ancient wheats contain less gluten than modern bread wheat, in favour of better health?Nutrition bulletin · 2022Review
- Aegilops sharonensis genome-assisted identification of stem rust resistance gene Sr62.Nature communications · 2022Article
- The Plastome Sequences ofInternational journal of molecular sciences · 2022Article
- The origin and evolution of a two-component system of paralogous genes encoding the centromeric histone CENH3 in cereals.BMC plant biology · 2021Article
- Characterizing chloroplast genomes and inferring maternal divergence of the Triticum-Aegilops complex.Scientific reports · 2021Article
- A high-quality genome assembly highlights rye genomic characteristics and agronomically important genes.Nature genetics · 2021Article
- Genome Wide Analysis of U-Box E3 Ubiquitin Ligases in Wheat (International journal of molecular sciences · 2021Article
- Genome-Wide Analysis ofFrontiers in genetics · 2021Article
- Development and deployment of KASP markers for multiple alleles of Lr34 in wheat.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2020Article
- Homoeologous exchanges occur through intragenic recombination generating novel transcripts and proteins in wheat and other polyploids.Proceedings of the National Academy of Sciences of the United States of America · 2020Article
- Stem rust resistance in wheat is suppressed by a subunit of the mediator complex.Nature communications · 2020Article
- Non-Catalytic Subunits Facilitate Quaternary Organization of Plastidic Acetyl-CoA Carboxylase.Plant physiology · 2020Article
- Genome-Wide Mining of WheatFrontiers in plant science · 2020Article
- Rapid evolution of α-gliadin gene family revealed by analyzing Gli-2 locus regions of wild emmer wheat.Functional & integrative genomics · 2019Article
- Genetic analysis of threshability and other spike traits in the evolution of cultivated emmer to fully domesticated durum wheat.Molecular genetics and genomics : MGG · 2019Article
29 more citing papers are in PubMed but not listed here.
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7 authors.
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Abstract
The DNA sequences of wheat Acc-1 and Acc-2 loci, encoding the plastid and cytosolic forms of the enzyme acetyl-CoA carboxylase, were analyzed with a view to understanding the evolution of these genes and the origin of the three genomes in modern hexaploid wheat. Acc-1 and Acc-2 loci from each of the wheats Triticum urartu (A genome), Aegilops tauschii (D genome), Triticum turgidum (AB genome), and Triticum aestivum (ABD genome), as well as two Acc-2-related pseudogenes from T. urartu were sequenced. The 2.3-2.4 Mya divergence time calculated here for the three homoeologous chromosomes, on the basis of coding and intron sequences of the Acc-1 genes, is at the low end of other estimates. Our clock was calibrated by using 60 Mya for the divergence between wheat and maize. On the same time scale, wheat and barley diverged 11.6 Mya, based on sequences of Acc and other genes. The regions flanking the Acc genes are not conserved among the A, B, and D genomes. They are conserved when comparing homoeologous genomes of diploid, tetraploid, and hexaploid wheats. Substitution rates in intergenic regions consisting primarily of repetitive sequences vary substantially along the loci and on average are 3.5-fold higher than the Acc intron substitution rates. The composition of the Acc homoeoloci suggests haplotype divergence exceeding in some cases 0.5 Mya. Such variation might result in a significant overestimate of the time since tetraploid wheat formation, which occurred no more than 0.5 Mya.
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