ArticleBMC plant biology2022
Reconstruction of karyotypic evolution in Saccharum spontaneum species by comparative oligo-FISH mapping.
Article in BMC plant biology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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7 citing papers in PubMed, 10 citations in OpenAlex.
- Chromosome painting in plants: history and future perspectives.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2026Review
- Comparative Oligo-FISH Mapping Illuminates Chromosomal Evolution Among Rutaceae Species Diverged Over 50 Million Years.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Cytogenomic and phylogenomic evidence for new infrageneric relationships in Macroptilium (Benth.) beans.Annals of botany · 2026Article
- Cytotype classification and genetic diversity of Platostoma palustre revealed by rDNA localization and chloroplast genome.BMC genomics · 2025Article
- Optimization of Chromosome Preparation and Karyotype Analysis of Winter Turnip Rape (International journal of molecular sciences · 2025Article
- Oligo-FISH barcode chromosome identification system provides novel insights into the natural chromosome aberrations propensity in the autotetraploid cultivated alfalfa.Horticulture research · 2025Article
- All nonhomologous chromosomes and rearrangements inFrontiers in plant science · 2023Article
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundKaryotype dynamics driven by chromosomal rearrangements has long been considered as a fundamental question in the evolutionary genetics. Saccharum spontaneum, the most primitive and complex species in the genus Saccharum, has reportedly undergone at least two major chromosomal rearrangements, however, its karyotypic evolution remains unclear.
resultsIn this study, four representative accessions, i.e., hypothetical diploid sugarcane ancestor (sorghum, x = 10), Sa. spontaneum Np-X (x = 10, tetraploid), 2012-46 (x = 9, hexaploid) and AP85-441 (x = 8, tetraploid), were selected for karyotype evolution studies. A set of oligonucleotide (oligo)-based barcode probes was developed based on the sorghum genome, which allowed universal identification of all chromosomes from sorghum and Sa. spontaneum. By comparative FISH assays, we reconstructed the karyotype evolutionary history and discovered that although chromosomal rearrangements resulted in greater variation in relative lengths of some chromosomes, all chromosomes maintained a conserved metacentric structure. Additionally, we found that the barcode oligo probe was not applicable for chromosome identification in both Sa. robustum and Sa. officinarum species, suggesting that sorghum is more distantly related to Sa. robustum and Sa. officinarum compared with Sa. spontaneum species.
conclusionsOur study demonstrated that the barcode oligo-FISH is an efficient tool for chromosome identification and karyotyping research, and expanded our understanding of the karyotypic and chromosomal evolution in the genus Saccharum.
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