ArticlePloS one2014
Reconstructing the Evolution of Brachypodium Genomes Using Comparative Chromosome Painting.
Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.
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Who cites it
29 citing papers in PubMed, 53 citations in OpenAlex.
- Thriving or Withering? Plant Molecular Cytogenetics in the First Quarter of the 21st Century.International journal of molecular sciences · 2025Review
- Celebrating Mendel, McClintock, and Darlington: On end-to-end chromosome fusions and nested chromosome fusions.The Plant cell · 2022Review
- Chromosome identification in oil palm (Elaeis guineensis) using in situ hybridization with massive pools of single copy oligonucleotides and transferability across Arecaceae species.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2021Article
- Chromosome and Genome Diversity in the GenusPlants (Basel, Switzerland) · 2021Review
- BAC- and oligo-FISH mapping reveals chromosome evolution among Vigna angularis, V. unguiculata, and Phaseolus vulgaris.Chromosoma · 2021Article
- Using carrot centromeric repeats to study karyotype relationships in the genus Daucus (Apiaceae).BMC genomics · 2021Article
- The Evolution of Chromosome Numbers: Mechanistic Models and Experimental Approaches.Genome biology and evolution · 2021Article
- Ribosomal DNA localization on Lathyrus species chromosomes by FISH.Journal, genetic engineering & biotechnology · 2020Article
- Repetitive sequences and structural chromosome alterations promote intraspecific variations in Zea mays L. karyotype.Scientific reports · 2020Article
- Comparatively Barcoded Chromosomes ofInternational journal of molecular sciences · 2019Article
- The story of promiscuous crucifers: origin and genome evolution of an invasive species, Cardamine occulta (Brassicaceae), and its relatives.Annals of botany · 2019Article
- Fluorescence in situ hybridization in plants: recent developments and future applications.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2019Review
- The large genome size variation in the Hesperis clade was shaped by the prevalent proliferation of DNA repeats and rarer genome downsizing.Annals of botany · 2019Article
- Dissecting the chromosomal composition of mutagen-induced micronuclei in Brachypodium distachyon using multicolour FISH.Annals of botany · 2018Article
- Chromosome identification and reconstruction of evolutionary rearrangements in Brachypodium distachyon, B. stacei and B. hybridum.Annals of botany · 2018Article
- Review
- Chromosome painting and its applications in cultivated and wild rice.BMC plant biology · 2018Article
- Homoeolog-specific activation of genes for heat acclimation in the allopolyploid grass Brachypodium hybridum.GigaScience · 2018Article
- Review
- Article
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Authors and funding
3 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Brachypodium distachyon is a model for the temperate cereals and grasses and has a biology, genomics infrastructure and cytogenetic platform fit for purpose. It is a member of a genus with fewer than 20 species, which have different genome sizes, basic chromosome numbers and ploidy levels. The phylogeny and interspecific relationships of this group have not to date been resolved by sequence comparisons and karyotypical studies. The aims of this study are not only to reconstruct the evolution of Brachypodium karyotypes to resolve the phylogeny, but also to highlight the mechanisms that shape the evolution of grass genomes. This was achieved through the use of comparative chromosome painting (CCP) which hybridises fluorescent, chromosome-specific probes derived from B. distachyon to homoeologous meiotic chromosomes of its close relatives. The study included five diploids (B. distachyon 2n = 10, B. sylvaticum 2n = 18, B. pinnatum 2n = 16; 2n = 18, B. arbuscula 2n = 18 and B. stacei 2n = 20) three allotetraploids (B. pinnatum 2n = 28, B. phoenicoides 2n = 28 and B. hybridum 2n = 30), and two species of unknown ploidy (B. retusum 2n = 38 and B. mexicanum 2n = 40). On the basis of the patterns of hybridisation and incorporating published data, we propose two alternative, but similar, models of karyotype evolution in the genus Brachypodium. According to the first model, the extant genome of B. distachyon derives from B. mexicanum or B. stacei by several rounds of descending dysploidy, and the other diploids evolve from B. distachyon via ascending dysploidy. The allotetraploids arise by interspecific hybridisation and chromosome doubling between B. distachyon and other diploids. The second model differs from the first insofar as it incorporates an intermediate 2n = 18 species between the B. mexicanum or B. stacei progenitors and the dysploidic B. distachyon.
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