ArticleBMC genetics2010
Chromosomal mapping of rRNA genes, core histone genes and telomeric sequences in Brachidontes puniceus and Brachidontes rodriguezi (Bivalvia, Mytilidae).
Article in BMC genetics, 2010. 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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Who cites it
17 citing papers in PubMed.
- Diploid hybrid fish derived from the cross between female Bleeker's yellow tail and male topmouth culter, two cyprinid fishes belonging to different subfamilies.BMC genetics · 2019Article
- From the raw bar to the bench: Bivalves as models for human health.Developmental and comparative immunology · 2019Review
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- Cytogenetics inGenes · 2018Article
- RNAi drives nonreciprocal translocations at eroding chromosome ends to establish telomere-free linear chromosomes.Genes & development · 2018Article
- GenomicComparative cytogenetics · 2018Article
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- 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
- Divergent evolutionary behavior of H3 histone gene and rDNA clusters in venerid clams.Molecular cytogenetics · 2015Article
- Article
- Karyotypic diversification in Mytilus mussels (Bivalvia: Mytilidae) inferred from chromosomal mapping of rRNA and histone gene clusters.BMC genetics · 2014Article
- Evolutionary dynamics of rDNA clusters in chromosomes of five clam species belonging to the family Veneridae (Mollusca, Bivalvia).BioMed research international · 2014Article
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- Article
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4 authors.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundChromosome rearrangements are an important part of the speciation process in many taxa. The study of chromosome evolution in bivalves is hampered by the absence of clear chromosomal banding patterns and the similarity in both chromosome size and morphology. For this reason, obtaining good chromosome markers is essential for reliable karyotypic comparisons. To begin this task, the chromosomes of the mussels Brachidontes puniceus and B. rodriguezi were studied by means of fluorochrome staining and fluorescent in situ hybridization (FISH).
resultsBrachidontes puniceus and B. rodriguezi both have 2n = 32 chromosomes but differing karyotype composition. Vertebrate-type telomeric sequences appear at both ends of every single chromosome. B. puniceus presents a single terminal major rRNA gene cluster on a chromosome pair while B. rodriguezi shows two. Both mussels present two 5S rDNA and two core histone gene clusters intercalary located on the long arms of two chromosome pairs. Double and triple-FISH experiments demonstrated that one of the 5S rDNA and one of the major rDNA clusters appear on the same chromosome pair in B. rodriguezi but not in B. puniceus. On the other hand, the second 5S rDNA cluster is located in one of the chromosome pairs also bearing one of the core histone gene clusters in the two mussel species.
conclusionKnowledge of the chromosomal distribution of these sequences in the two species of Brachidontes is a first step in the understanding of the role of chromosome changes on bivalve evolution.
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