Mitochondrial DNA and Color Pattern Variation in Three Western Atlantic Halichoeres (Labridae), with the Revalidation of Two Species

Rocha, Luiz A.

doi:10.1643/cg-04-106

Cited by 77 publications

(75 citation statements)

References 34 publications

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“…These two populations are separated by the 2300 km wide Amazon river barrier. Even though their divergence is smaller than that of some surgeonfishes and wrasses influenced by the same barrier (Rocha et al, 2002(Rocha et al, , 2005Rocha, 2004) and there is no difference in morphology or the nuclear genes analyzed, their genetic uniqueness at the mtDNA supports the view that these populations should be regarded as distinct evolutionary units and not as a single, widely distributed panmictic species, and be managed accordingly (Rocha et al, 2007).…”

Section: Morphology Versus Moleculesmentioning

confidence: 74%

Historical biogeography and speciation in the reef fish genus Haemulon (Teleostei: Haemulidae)

Rocha

Lindeman

Rocha

et al. 2008

Molecular Phylogenetics and Evolution

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108

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Section: Morphology Versus Moleculesmentioning

confidence: 74%

Historical biogeography and speciation in the reef fish genus Haemulon (Teleostei: Haemulidae)

Rocha

Lindeman

Rocha

et al. 2008

Molecular Phylogenetics and Evolution

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108

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“…This procedure was based on recent reports about biogeography of Brazilian reef species (Floeter and Gasparini, 2000;Floeter et al, 2001;Rocha, 2004;Ferreira et al, 2004). According to these authors, the Brazilian coastal zones can be reliably separated into northeastern, southeastern, and oceanic islands.…”

Section: Study Area and Sampling Collectionmentioning

confidence: 99%

Genetic diversity of three ornamental reef fishes (Families Pomacanthidae and Chaetodontidae) from the Brazilian coast

Affonso

Galetti

2007

Braz. J. Biol.

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Reef fishes of the families Pomacanthidae (angelfish) and Chaetodontidae (butterflyfish) are popular ornamental species, intensively harvested for the aquarium trade. The impacts of such activity on intra-specific diversity and reef ecosystems are still poorly understood in the south Atlantic. In the present work, a fine-scale genetic analysis using RAPD markers was performed in distinct samples of the queen angelfish (Holacanthus ciliaris), French angelfish (Pomacanthus paru), and banded butterflyfish (Chaetodon striatus) along the Brazilian coast. Most of the genetic variation in the three species was related to intra-population diversity. However, AMOVA results demonstrated that H. ciliaris presents a subtle population structure (φ st = 0.132, P = 0.003), while P. paru and C. striatus present low genetic differentiation, especially remarkable in the latter (φ st = 0.090, P = 0.001 and φ st = 0.041, P = 0.028, respectively). Gene flow (Nm) was also higher in C. striatus than in the angelfish species. The reported patterns of genetic differentiation contrast with the similar pelagic stage of the selected species, suggesting that larval dispersal per se is a poor predictor of population structure in these reef fishes. Ecological features coupled with biogeographic history and distinct local selective pressures might play a major role on the genetic composition of each species. Although preliminary, the present results provide a baseline for monitoring the genetic variability in these reef species. These differences in the genetic structure among co-occurring species should be taken into consideration for the conservation of eventual evolutionary units along the Brazilian Province.Keywords: angelfish, butterflyfish, dispersal, RAPD, reef fish. Diversidade genética em três espécies de peixes ornamentais de recifes (famílias Pomacanthidae e Chaetodontidae) da costa brasileira ResumoOs peixes recifais das famílias Pomacanthidae (peixes-anjo) e Chaetodontidae (peixes-borboleta) são espécies ornamentais populares, intensivamente coletadas para o comércio aquariófilo. Os impactos dessa atividade na diversidade intra-específica e no ecossistema recifal ainda são pouco conhecidos no Atlântico Sul. No presente trabalho, uma análise genética em fina escala usando marcadores RAPD foi realizada em diferentes amostras de Holacanthus ciliaris (anjo ciliaris), Pomacanthus paru (peixe frade) e Chaetodon striatus (borboleta striatus) ao longo da costa brasileira. A maior parte da variação genética nas três espécies relacionou-se à diversidade intrapopulacional. Contudo, resultados da AMOVA demonstraram que H. ciliaris apresenta uma estruturação populacional sutil (φ st = 0,132, P = 0,003), enquanto P. paru e C. striatus apresentam uma baixa diferenciação genética, particularmente reduzida na última (φ st = 0,090, P = 0,001 e φ st = 0,041, P = 0,028, respectivamente). O fluxo gênico (Nm) também foi mais alto em C. striatus do que nas espécies de Pomacanthidae. Os padrões de diferenciação genética registrados contrastam com...

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“…Recent phylogeographic studies have revealed cryptic diversity within species [9] and the influence of porous hydrological barriers [10]. Each study has provided valuable insights, yet an overview of the role of barriers is lacking.…”

Section: Introductionmentioning

confidence: 99%

Vicariance across major marine biogeographic barriers: temporal concordance and the relative intensity of hard versus soft barriers

2013

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The marine tropics contain five major biogeographic regions (East Pacific, Atlantic, Indian Ocean, Indo-Australian Archipelago (IAA) and Central Pacific). These regions are separated by both hard and soft barriers. Reconstructing ancestral vicariance, we evaluate the extent of temporal concordance in vicariance events across three major barriers (Terminal Tethyan Event (TTE), Isthmus of Panama (IOP), East Pacific Barrier, EPB) and two incomplete barriers (either side of the IAA) for the Labridae, Pomacentridae and Chaetodontidae. We found a marked lack of temporal congruence within and among the three fish families in vicariance events associated with the EPB, TTE and IOP. Vicariance across hard barriers separating the Atlantic and Indo-Pacific (TTE, IOP) is temporally diffuse, with many vicariance events preceding barrier formation. In marked contrast, soft barriers either side of the IAA hotspot support tightly concordant vicariance events (2.5 Myr on Indian Ocean side; 6 Myr on Central Pacific side). Temporal concordance in vicariance points to large-scale temporally restricted gene flow during the Late Miocene and Pliocene. Despite different and often complex histories, both hard and soft barriers have comparably strong effects on the evolution of coral reef taxa.

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Mitochondrial DNA and Color Pattern Variation in Three Western Atlantic Halichoeres (Labridae), with the Revalidation of Two Species

Cited by 77 publications

References 34 publications

Historical biogeography and speciation in the reef fish genus Haemulon (Teleostei: Haemulidae)

Historical biogeography and speciation in the reef fish genus Haemulon (Teleostei: Haemulidae)

Genetic diversity of three ornamental reef fishes (Families Pomacanthidae and Chaetodontidae) from the Brazilian coast

Vicariance across major marine biogeographic barriers: temporal concordance and the relative intensity of hard versus soft barriers

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