ArticleMolecular cytogenetics2015
Divergent evolutionary behavior of H3 histone gene and rDNA clusters in venerid clams.
Article in Molecular cytogenetics, 2015. 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, 20 citations in OpenAlex.
- Cytogenetic Analysis of Histone Gene and DNA Methylation in Amazonian Turtles (Chelonia: Podocnemididae).ACS omega · 2025Article
- Core histone families of mollusca: systematic identification, evolutionary insights, and functional analysis.BMC genomics · 2025Article
- A diverse satellite DNA repertoire inFrontiers in molecular biosciences · 2025Article
- Molecular cytogenetic study on the scleractinian coralComparative cytogenetics · 2025Article
- Somatic evolution of marine transmissible leukemias in the common cockle, Cerastoderma edule.Nature cancer · 2023Article
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- Sequence Composition Underlying Centromeric and Heterochromatic Genome Compartments of the Pacific OysterGenes · 2020Article
- Terminal-Repeat Retrotransposons in Miniature (TRIMs) in bivalves.Scientific reports · 2019Article
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- Cytogenetics inGenes · 2018Article
- Comparative analyses of the complete mitochondrial genomes of Dosinia clams and their phylogenetic position within Veneridae.PloS one · 2018Article
- GenomicComparative cytogenetics · 2018Article
- Article
- Methylation profile of a satellite DNA constituting the intercalary G+C-rich heterochromatin of the cut trough shell Spisula subtruncata (Bivalvia, Mactridae).Scientific reports · 2017Article
- Karyotype differentiation in tellin shells (Bivalvia: Tellinidae).BMC genetics · 2017Article
- Resolving the Taxonomic Status ofBioMed research international · 2017Article
- Molecular Cytogenetics in Trough Shells (Mactridae, Bivalvia): Divergent GC-Rich Heterochromatin Content.Genes · 2016Article
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4 authors at 1 institution in 1 country.
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Abstract
backgroundHistone H3 gene clusters have been described as highly conserved chromosomal markers in invertebrates. Surprisingly, in bivalves remarkable interspecific differences were found among the eight mussels and between the two clams in which histone H3 gene clusters have already been located. Although the family Veneridae comprises 10 % of the species of marine bivalves, their chromosomes are poorly studied. The clams belonging to this family present 2n = 38 chromosomes and similar karyotypes showing chromosome pairs gradually decreasing in length. In order to assess the evolutionary behavior of histone and rRNA multigene families in bivalves, we mapped histone H3 and ribosomal RNA probes to chromosomes of ten species of venerid clams.
resultsIn contrast with the reported conservation of histone H3 gene clusters and their intercalary location in invertebrates, these loci varied in number and were mostly subterminal in venerid clams. On the other hand, while a single 45S rDNA cluster, highly variable in location, was found in these organisms, 5S rDNA clusters showed interspecific differences in both number and location. The distribution patterns of these sequences were species-specific and mapped to different chromosomal positions in all clams but Ruditapes decussatus, in which one of the minor rDNA clusters and the major rDNA cluster co-located.
conclusionThe diversity in the distribution patterns of histone H3 gene, 5S rDNA and 28S rDNA clusters found in venerid clams, together with their different evolutionary behaviors in other invertebrate taxa, strongly suggest that the control of the spreading of these multigene families in a group of organisms relies upon a combination of evolutionary forces that operate differently depending not only on the specific multigene family but also on the particular taxa. Our data also showed that H3 histone gene and rDNA clusters are useful landmarks to integrate nex-generation sequencing (NGS) and evolutionary genomic data in non-model species.
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