ArticleChromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology2009
Physical mapping of rDNA and heterochromatin in chromosomes of 16 Coffea species: a revised view of species differentiation.
Article in Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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17 citing papers in PubMed, 65 citations in OpenAlex.
- Article
- Chromosome distribution of four LTR retrotransposons and 18 S rDNA in coffea eugenioides.Scientific reports · 2025Article
- Cyto-molecular characterization of rDNA and chromatin composition in the NOR-associated satellite in Chestnut (Castanea spp.).Scientific reports · 2024Article
- Review
- New chromosome number and cyto-molecular characterization of the African Baobab (Adansonia digitata L.) - "The Tree of Life".Scientific reports · 2020Article
- Comparative molecular cytogenetic characterization of five wildComparative cytogenetics · 2020Article
- Karyotype analysis of eight cultivated Allium species.Journal of applied genetics · 2019Article
- Molecular cytogenetic characterization and comparison of the two cultivatedComparative cytogenetics · 2017Article
- Fluorescence In Situ Hybridization (FISH)-Based Karyotyping Reveals Rapid Evolution of Centromeric and Subtelomeric Repeats in Common Bean (Phaseolus vulgaris) and Relatives.G3 (Bethesda, Md.) · 2016Article
- Spreading of heterochromatin and karyotype differentiation in two Tropidacris Scudder, 1869 species (Orthoptera, Romaleidae).Comparative cytogenetics · 2015Article
- Plant rDNA database: update and new features.Database : the journal of biological databases and curation · 2014Review
- Mapping pachytene chromosomes of coffee using a modified protocol for fluorescence in situ hybridization.AoB PLANTS · 2013Article
- Chromosomal Locations of 5S and 45S rDNA in Gossypium Genus and Its Phylogenetic Implications Revealed by FISH.PloS one · 2013Article
- Ancestral synteny shared between distantly-related plant species from the asterid (Coffea canephora and Solanum Sp.) and rosid (Vitis vinifera) clades.BMC genomics · 2012Article
- Physical mapping of 5S and 18S-5.8S-26S RNA gene families in polyploid series of Cenchrus ciliaris Linnaeus, 1771 (Poaceae).Comparative cytogenetics · 2012Article
- Two novel Ty1-copia retrotransposons isolated from coffee trees can effectively reveal evolutionary relationships in the Coffea genus (Rubiaceae).Molecular genetics and genomics : MGG · 2011Article
- Site-Specific Insertion Polymorphism of the MITE Alex-1 in the Genus Coffea Suggests Interspecific Gene Flow.International journal of evolutionary biology · 2011Article
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Authors and funding
7 authors at 5 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The chromosome organization among 15 wild diploid Coffea species and cultivated tetraploid C. arabica was determined by fluorochrome banding (CMA, DAPI) and double fluorescence in-situ hybridization (FISH) of 5S and 18S rDNA achieved on the same chromosome plates. Two to five chromosome pairs (plus one putative chromosome B) are marked. Overall, there are two SAT-chromosome pairs for East African species and one for the Malagasy and the West and Central African species. 18S rDNA loci are telomeric and strongly marked the SAT-chromosome pairs. Generally, only one pericentromeric 5S rDNA locus characterized East African species, while an additional minor locus co-localized with the 18S rDNA-SAT locus for the Malagasy species and West and Central African species. A combination of rDNA FISH plus CMA and DAPI banding patterns enables identification of almost all the species, even those for which the genetic or botanical status is still being discussed. C. arabica clearly appears to be an allotetraploid species, including one genome from East Africa and one from West and Central Africa. However, since the minor 5S rDNA-SAT locus present in West/Central African genomes is not detected, two evolutionary hypotheses could be put forward for C. arabica. Considering only the diploid species, global trends are obvious in rDNA signal patterns, genome size variations, and geographic distribution of the species, but there are no clear evolutionary trends. However, complex interactions between these factors and environmental growing conditions exist, which have resulted in loss and gain of rDNA loci and probably also in copy repeat number variations in each rDNA family.
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