ArticleTAG. Theoretical and applied genetics. Theoretische und angewandte Genetik2018
Molecular cytogenetic and genomic analyses reveal new insights into the origin of the wheat B genome.
Article in TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed.
- Development and Characterization of Wheat-Plants (Basel, Switzerland) · 2025Article
- Exploring the genetic diversity and population structure of an ancient hexaploid wheat species Triticum sphaerococcum using SNP markers.BMC plant biology · 2024Article
- Enrichment and Diversification of the Wheat Genome via Alien Introgression.Plants (Basel, Switzerland) · 2024Review
- Genome sequencing of Sitopsis species provides insights into their contribution to the B subgenome of bread wheat.Plant communications · 2023Article
- Genetic mapping of a novel powdery mildew resistance gene in wild emmer wheat from "Evolution Canyon" in Mt. Carmel Israel.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2021Article
- The unique disarticulation layer formed in the rachis of Aegilops longissima probably results from the spatial co-expression of Btr1 and Btr2.Annals of botany · 2021Article
- Pleiotropic function of the SQUAMOSA PROMOTER-BINDING PROTEIN-LIKE gene TaSPL14 in wheat plant architecture.Planta · 2021Article
- Dissection and physical mapping of wheat chromosome 7B by inducing meiotic recombination with its homoeologues in Aegilops speltoides and Thinopyrum elongatum.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2020Article
- Wheat chromatin architecture is organized in genome territories and transcription factories.Genome biology · 2020Article
- Partitioning and physical mapping of wheat chromosome 3B and its homoeologue 3E in Thinopyrum elongatum by inducing homoeologous recombination.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2020Article
- Chromosome engineering-mediated introgression and molecular mapping of novel Aegilops speltoides-derived resistance genes for tan spot and Septoria nodorum blotch diseases in wheat.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2019Article
- Origin of wheat B-genome chromosomes inferred from RNA sequencing analysis of leaf transcripts from section Sitopsis species of Aegilops.DNA research : an international journal for rapid publication of reports on genes and genomes · 2019Article
- An Update of Recent Use ofFrontiers in plant science · 2019Article
- Delimitation of wheat ph1b deletion and development of ph1b-specific DNA markers.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2019Article
- Meiotic homoeologous recombination-based mapping of wheat chromosome 2B and its homoeologues in Aegilops speltoides and Thinopyrum elongatum.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2018Article
- Cloning and characterization of the homoeologous genes for the Rec8-like meiotic cohesin in polyploid wheat.BMC plant biology · 2018Article
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Authors and funding
10 authors.
Funding
Abstract
key messageThis work pinpointed the goatgrass chromosomal segment in the wheat B genome using modern cytogenetic and genomic technologies, and provided novel insights into the origin of the wheat B genome. Wheat is a typical allopolyploid with three homoeologous subgenomes (A, B, and D). The donors of the subgenomes A and D had been identified, but not for the subgenome B. The goatgrass Aegilops speltoides (genome SS) has been controversially considered a possible candidate for the donor of the wheat B genome. However, the relationship of the Ae. speltoides S genome with the wheat B genome remains largely obscure. The present study assessed the homology of the B and S genomes using an integrative cytogenetic and genomic approach, and revealed the contribution of Ae. speltoides to the origin of the wheat B genome. We discovered noticeable homology between wheat chromosome 1B and Ae. speltoides chromosome 1S, but not between other chromosomes in the B and S genomes. An Ae. speltoides-originated segment spanning a genomic region of approximately 10.46 Mb was detected on the long arm of wheat chromosome 1B (1BL). The Ae. speltoides-originated segment on 1BL was found to co-evolve with the rest of the B genome. Evidently, Ae. speltoides had been involved in the origin of the wheat B genome, but should not be considered an exclusive donor of this genome. The wheat B genome might have a polyphyletic origin with multiple ancestors involved, including Ae. speltoides. These novel findings will facilitate genome studies in wheat and other polyploids.
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