ArticleChromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology2012
Genomic organization and comparative chromosome mapping of the U1 snRNA gene in cichlid fish, with an emphasis in Oreochromis niloticus.
Article in Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.
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25 citing papers in PubMed.
- Discovery of new chromosomal markers through repeatome analysis of Caryophyllaeus laticeps (Caryophyllidea).Parasitology research · 2025Article
- Cytogenetic Analysis of the Fish Genus Carassius Indicates Divergence, Fission, and Segmental Duplication as Drivers of Tandem Repeat and Microchromosome Evolution.Genome biology and evolution · 2024Article
- Mechanisms of Karyotypic Diversification inInternational journal of molecular sciences · 2023Article
- Chromosomal Diversification inAnimals : an open access journal from MDPI · 2022Article
- Large-scale comparative analysis of cytogenetic markers across Lepidoptera.Scientific reports · 2021Article
- Comparative Cytogenetics Analysis AmongFrontiers in genetics · 2021Article
- Taxonomic Diversity Not Associated with Gross Karyotype Differentiation: The Case of Bighead Carps, GenusGenes · 2020Article
- Molecular cytogenetic analyses reveal extensive chromosomal rearrangements and novel B chromosomes in Moenkhausia (Teleostei, Characidae).Genetics and molecular biology · 2020Article
- De novo genome assembly of the cichlid fish Astatotilapia latifasciata reveals a higher level of genomic polymorphism and genes related to B chromosomes.Chromosoma · 2019Article
- Identification of a New Mullet Species Complex Based on an Integrative Molecular and Cytogenetic Investigation ofFrontiers in genetics · 2018Article
- The repetitive DNA element BncDNA, enriched in the B chromosome of the cichlid fish Astatotilapia latifasciata, transcribes a potentially noncoding RNA.Chromosoma · 2017Article
- Development of chromosomal markers based on next-generation sequencing: the B chromosome of the cichlid fish Astatotilapia latifasciata as a model.BMC genetics · 2016Article
- High similarity of U2 snDNA sequence between A and B chromosomes in the grasshopper Abracris flavolineata.Molecular genetics and genomics : MGG · 2015Article
- Neo-sex chromosomes of Ronderosia bergi: insight into the evolution of sex chromosomes in grasshoppers.Chromosoma · 2015Article
- A step to the gigantic genome of the desert locust: chromosome sizes and repeated DNAs.Chromosoma · 2015Article
- Article
- Chromosomal distribution of microsatellite repeats in Amazon cichlids genome (Pisces, Cichlidae).Comparative cytogenetics · 2015Article
- Contrasting the Chromosomal Organization of Repetitive DNAs in Two Gryllidae Crickets with Highly Divergent Karyotypes.PloS one · 2015Article
- Article
- Sequencing and characterization of the transcriptome of half-smooth tongue sole (Cynoglossus semilaevis).BMC genomics · 2014Article
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4 authors.
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Abstract
To better understand genomic and chromosomal organization and evolutionary patterns of the U1 snRNA gene in cichlid fish, the gene was cytogenetically mapped and comparatively analyzed in 19 species belonging to several clades of the group. Moreover, the distribution and organization of U1 snRNA gene was analyzed in the Oreochromis niloticus genome. The results indicated high conservation of one chromosomal cluster of U1 snRNA in the African, Asian, and South American species, with few variations in the chromosomal position of the clusters in the South American species. The genomic analysis of U1 revealed a distinct scenario from that observed under the cytogenetic mapping. An enrichment of the U1 gene on linkage group (LG) 14 was observed that did not correspond to the same chromosome that harbors the U1 cluster identified by cytogenetic mapping. Moreover, it was revealed that the presence of several distinct transposable elements in the U1 gene flanking regions could be involved in the spreading of this sequence, but the generation of new, large snRNA clusters (detectable by fluorescent in situ hybridization, FISH) is apparently hampered. These results contribute to the understanding of multigene families' evolution and reinforce the utility of integrative analysis and the use of cytogenetic and bioinformatic methods to address the genomic and chromosomal evolutionary patterns of repeated DNAs among vertebrates. Moreover, the U1 gene represents a useful new chromosomal marker for cytogenetic studies.
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