Extensive chromosomal homologies and evidence of karyotypic stasis in Atlantic grunts of the genus Haemulon (Perciformes)

Neto, Clóvis Coutinho Motta; Cioffi, Marcelo de Bello; Bertollo, L.A.C.; Molina, Wagner Franco

doi:10.1016/j.jembe.2011.02.044

Cited by 41 publications

(19 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The identification of 5S rRNA genes was also informative to the karyotypic analyses of studied species. As commonly reported in marine fish, particularly Perciformes (Motta Neto et al 2011a, Martins et al 2011, the 5S rDNA clusters were non-syntenic to NORs and located close to centromeres, revealing their independent evolution in relation to 18S rDNA. Apparently, this trend is widespread in Percomorpharia once it was identified in distinct orders according to the recent phylogenetic tree of teleosteans (Betancur et al 2013).…”

Section: Discussionsupporting

confidence: 67%

“…In general, chromosomal studies in marine Percomorpharia reveal stable karyotypes composed of 2n=48 and a predominance of acrocentric pairs. Indeed, the presence of 24 acrocentric pairs is shared by several species from distinct families of Perciformes (Affonso et al 2001, Accioly and Molina 2007, Cipriano et al 2008, Motta Neto et al 2011a, 2011b, Molina et al 2012, Costa et al 2016. This pattern raises some intriguing questions: (1) how could such a morphologically diversified group evolve without significant chromosomal changes (Brum 1996, Galetti et al 2000, Molina 2007)?…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Chromosomal stasis in distinct families of marine Percomorpharia from South Atlantic

Paim

Almeida

Affonso

et al. 2017

CCG

View full text Add to dashboard Cite

The weakness of physical barriers in the marine environment and the dispersal potential of fish populations have been invoked as explanations of the apparent karyotype stasis of marine Percomorpha, but several taxa remain poorly studied cytogenetically. To increase the chromosomal data in this fish group, we analyzed cytogenetically three widespread Atlantic species from distinct families: Chaetodipterus faber Broussonet, 1782 (Ephippidae), Lutjanus synagris Linnaeus, 1758 (Lutjanidae) and Rypticus randalli Courtenay, 1967 (Serranidae). The three species shared a karyotype composed of 2n=48 acrocentric chromosomes, single nucleolus organizer regions (NORs) and reduced amounts of centromeric heterochromatin. A single NOR-bearing pair was identified in all species by physical mapping of 18S rDNA while non-syntenic 5S rRNA genes were located at centromeric region of a single pair. The similar karyotypic macrostructure observed in unrelated groups of Percomorpharia reinforces the conservative karyoevolution of marine teleosteans. Nonetheless, the species could be differentiated based on the pair bearing ribosomal cistrons, revealing the importance of microstructural analyses in species with symmetric and stable karyotypes.

show abstract

Section: Discussionsupporting

confidence: 67%

Section: Introductionmentioning

confidence: 99%

Chromosomal stasis in distinct families of marine Percomorpharia from South Atlantic

Paim

Almeida

Affonso

et al. 2017

CCG

View full text Add to dashboard Cite

show abstract

“…The data are used to identify population variations along the coast of Brazil [27, 65], between this region and the Caribbean [66], or to reaffirm differences between sister species [67]. In these cases, the changes observed involve primarily ribosomal subunits (Ag-NORs sites, 18S rDNA, and 5S rDNA sequences), which represent polymorphic chromosomal regions that reveal variations in their position and frequency.…”

Section: Discussionmentioning

confidence: 99%

Genetic Multipartitions Based on D-Loop Sequences and Chromosomal Patterns in Brown Chromis,Chromis multilineata(Pomacentridae), in the Western Atlantic

Cunha

Souza

Dias

et al. 2014

BioMed Research International

Self Cite

View full text Add to dashboard Cite

Connectivity levels among Brazilian reef fish fauna populations have attracted growing interest, mainly between mainland shores and oceanic islands. The Pomacentridae, whose phylogeographic patterns are largely unknown in the Atlantic, are a family of dominant fish in reef regions. We present data on the variability and population structure of damselfish Chromis multilineata in different areas along the northeast coast of Brazil and in the waters around the oceanic islands of Fernando de Noronha (FNA) and Saint Peter and Saint Paul Archipelago (SPSPA) through analysis of the HVR1 mtDNA sequence of the control region. The remote SPSPA exhibits the highest level of genetic divergence among populations. Conventional and molecular cytogenetic analysis showed similar karyotype patterns (2n = 48 acrocentrics) between these insular areas. Our estimates reveal three genetically different population groups of C. multilineata on the Brazilian coast. The level of genetic structure is higher than previous data suggested, indicating complex panel of interactions between the oceanic island and coastal populations of Brazil.

show abstract

“…Static chromosome evolution has been reported in several other taxa of plants (Stuessy & Crawford, ; Mandáková, Heenan & Lysak, ) and animals (Aprea et al ., ; Ellegren, ; Neto et al ., ; Van't Hof et al ., ). In birds, genome stability was explained by the low density of interspersed repeats being assumed to mediate chromosomal rearrangements (Ellegren, ).…”

Section: Discussionmentioning

confidence: 99%

Molecular cytogenetics ofAndroctonusscorpions: an oasis of calm in the turbulent karyotype evolution of the diverse family Buthidae

Sadílek

Nguyen

Koç

et al. 2015

Biol J Linn Soc Lond

View full text Add to dashboard Cite

Recent cytogenetic and genomic studies suggest that morphological and molecular evolution is decoupled in the basal arachnid order Scorpiones. Extraordinary karyotype variation has been observed particularly in the family Buthidae, which is unique among scorpions for its holokinetic chromosomes. We analyzed the karyotypes of four geographically distant species of the genus Androctonus Ehrenberg, 1828 (Androctonus australis, Androctonus bourdoni, Androctonus crassicauda, Androctonus maelfaiti) (Scorpiones: Buthidae) using both classic and molecular cytogenetic methods. The mitotic complement of all species consisted of 2n = 24 elements. Fluorescence in situ hybridization with a fragment of the 18S ribosomal RNA gene, a cytogenetic marker well known for its mobility, identified a single interstitial rDNA locus on the largest chromosome pair in all species examined. Our findings thus support the evolutionary stasis of the Androctonus karyotype, which is discussed with respect to current hypotheses on chromosome evolution both within and beyond the family Buthidae. Differences in karyotype dynamics between Androctonus spp. and the other buthids can help us better understand the driving forces behind their chromosome evolution and speciation.

show abstract

Extensive chromosomal homologies and evidence of karyotypic stasis in Atlantic grunts of the genus Haemulon (Perciformes)

Cited by 41 publications

References 28 publications

Chromosomal stasis in distinct families of marine Percomorpharia from South Atlantic

Chromosomal stasis in distinct families of marine Percomorpharia from South Atlantic

Genetic Multipartitions Based on D-Loop Sequences and Chromosomal Patterns in Brown Chromis,Chromis multilineata(Pomacentridae), in the Western Atlantic

Molecular cytogenetics ofAndroctonusscorpions: an oasis of calm in the turbulent karyotype evolution of the diverse family Buthidae

Contact Info

Product

Resources

About