ArticleBMC plant biology2011
The impact of Ty3-gypsy group LTR retrotransposons Fatima on B-genome specificity of polyploid wheats.
Article in BMC plant biology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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13 citing papers in PubMed.
- Retrotransposons: How the continuous evolutionary front shapes plant genomes for response to heat stress.Frontiers in plant science · 2022Review
- Dissection of Structural Reorganization of Wheat 5B Chromosome Associated With Interspecies Recombination Suppression.Frontiers in plant science · 2022Article
- Allelic Variation Analysis at the Vernalization Response and Photoperiod Genes in Russian Wheat Varieties Identified Two Novel Alleles ofBiomolecules · 2021Article
- Supernumerary B Chromosomes and Plant Genome Changes: A Snapshot of Wild Populations ofInternational journal of molecular sciences · 2020Article
- 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
- Intraspecific and intraorganismal copy number dynamics of retrotransposons and tandem repeat in Aegilops speltoides Tausch (Poaceae, Triticeae).Protoplasma · 2018Article
- Transposable Elements in the Organization and Diversification of the Genome ofInternational journal of genomics · 2018Article
- Impact of transposable elements on polyploid plant genomes.Annals of botany · 2017Review
- Isolation and application of P genome-specific DNA sequences of Agropyron Gaertn. in Triticeae.Planta · 2017Article
- Intraspecific Polymorphisms of Cytogenetic Markers Mapped on Chromosomes of Triticum polonicum L.PloS one · 2016Article
- Article
- (GAA)n microsatellite as an indicator of the A genome reorganization during wheat evolution and domestication.Comparative cytogenetics · 2015Article
- Copy number variation of transposable elements in Triticum-Aegilops genus suggests evolutionary and revolutionary dynamics following allopolyploidization.Plant cell reports · 2013Article
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Abstract
backgroundTransposable elements (TEs) are a rapidly evolving fraction of the eukaryotic genomes and the main contributors to genome plasticity and divergence. Recently, occupation of the A- and D-genomes of allopolyploid wheat by specific TE families was demonstrated. Here, we investigated the impact of the well-represented family of gypsy LTR-retrotransposons, Fatima, on B-genome divergence of allopolyploid wheat using the fluorescent in situ hybridisation (FISH) method and phylogenetic analysis.
resultsFISH analysis of a BAC clone (BAC_2383A24) initially screened with Spelt1 repeats demonstrated its predominant localisation to chromosomes of the B-genome and its putative diploid progenitor Aegilops speltoides in hexaploid (genomic formula, BBAADD) and tetraploid (genomic formula, BBAA) wheats as well as their diploid progenitors. Analysis of the complete BAC_2383A24 nucleotide sequence (113,605 bp) demonstrated that it contains 55.6% TEs, 0.9% subtelomeric tandem repeats (Spelt1), and five genes. LTR retrotransposons are predominant, representing 50.7% of the total nucleotide sequence. Three elements of the gypsy LTR retrotransposon family Fatima make up 47.2% of all the LTR retrotransposons in this BAC. In situ hybridisation of the Fatima_2383A24-3 subclone suggests that individual representatives of the Fatima family contribute to the majority of the B-genome specific FISH pattern for BAC_2383A24. Phylogenetic analysis of various Fatima elements available from databases in combination with the data on their insertion dates demonstrated that the Fatima elements fall into several groups. One of these groups, containing Fatima_2383A24-3, is more specific to the B-genome and proliferated around 0.5-2.5 MYA, prior to allopolyploid wheat formation.
conclusionThe B-genome specificity of the gypsy-like Fatima, as determined by FISH, is explained to a great degree by the appearance of a genome-specific element within this family for Ae. speltoides. Moreover, its proliferation mainly occurred in this diploid species before it entered into allopolyploidy.Most likely, this scenario of emergence and proliferation of the genome-specific variants of retroelements, mainly in the diploid species, is characteristic of the evolution of all three genomes of hexaploid wheat.
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