The Atlantic–Mediterranean transition: Discordant genetic patterns in two seabream species, Diplodus puntazzo (Cetti) and Diplodus sargus (L.)

Bargelloni, Luca; Alarcón, Juan Antonio Calleja; Álvarez, M. Carmen; Penzo, E; Magoulas, Antoniοs; Palma, Jorge; Patarnello, Tomaso

doi:10.1016/j.ympev.2005.04.017

Cited by 91 publications

(74 citation statements)

References 35 publications

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“…Significant differences among populations of the anglerfish species Lophius budegassa have been found, but not among those of Lophius piscatorius, which has a qualitatively similar life history (42). Likewise, a gene flow break for 3 out of 5 sparid species investigated was found (43), and later it was shown that patterns were consistent within species irrespective of whether mitochondrial and nuclear (allozyme) markers were used (44). Thus, although the AOF can be an effective barrier to gene flow for most marine species, there are exceptions, which cannot be easily predicted from their early-lifehistory traits nor the genetic markers used.…”

Section: Discussionmentioning

confidence: 99%

The influence of oceanographic fronts and early-life-history traits on connectivity among littoral fish species

Galarza

Carreras-Carbonell

Macpherson

et al. 2009

Proc. Natl. Acad. Sci. U.S.A.

281

254

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The spatial distribution of neutral genetic diversity is mainly influenced by barriers to dispersal. The nature of such barriers varies according to the dispersal means and capabilities of the organisms concerned. Although these barriers are often obvious on land, in the ocean they can be more difficult to identify. Determining the relative influence of physical and biotic factors on genetic connectivity remains a major challenge for marine ecologists. Here, we compare gene flow patterns of 7 littoral fish species from 6 families with a range of early-life-history traits sampled at the same geographic locations across common environmental discontinuities in the form of oceanic fronts in the Western Mediterranean. We show that these fronts represent major barriers to gene flow and have a strong influence on the population genetic structure of some fish species. We also found no significant relation between the early-life-history traits most commonly investigated (egg type, pelagic larval duration, and inshore-offshore spawning) and gene flow patterns, suggesting that other life-history factors should deserve attention. The fronts analyzed and the underlying physical mechanisms are not site-specific but common among the oceans, suggesting the generality of our findings.gene flow ͉ microsatellite ͉ ocean circulation ͉ pelagic stages

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Section: Discussionmentioning

confidence: 99%

The influence of oceanographic fronts and early-life-history traits on connectivity among littoral fish species

Galarza

Carreras-Carbonell

Macpherson

et al. 2009

Proc. Natl. Acad. Sci. U.S.A.

281

254

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“…Some studies described a strong genetic divergence between Atlantic and Mediterranean faunas, ascribed to the relative isolation of both seas during the Pleistocene glaciations and to present day barriers such as the hydrology in the strait of Gibraltar. Genetic discontinuities between the Atlantic and the Mediterranean were found for four sparids (Bargelloni et al 2003(Bargelloni et al , 2005, for the cuttleWsh Sepia oYcinalis (Pérez-Losada et al 1999 and the mussel Mytilus galloprovincialis (Quesada et al 1995). Other species such as the ornate wrasse (Thalassoma pavo, Table 3 Demographic parameters of Tripterygion delaisi based on mtDNA control region and S7 intron Estimates of (compound parameter representing the eVective population size and mutation rate) and g (growth parameter) based on the mitochondrial control region and S7 intron for both groups of T. delaisi (islands and Atlantic plus Mediterranean populations).…”

Section: Discussionmentioning

confidence: 99%

“…Coalescence time of T. delaisi populations based on mitochondrial control region data is shown in the column 4. Parameters were estimated using FLUCTUATE (Kuhner et al 1998 Costagliola et al 2004), the chub mackerel (Scomber japonicus, Zardoya et al 2004), the withe sea-bream (Diplodus sargus, Bargelloni et al 2005) and the Norway lobster (Nephrops norvegicus, Stamatis et al 2004) were described as having high gene Xow levels between the Atlantic and the Mediterranean and no signs of an Atlantic-Mediterranean divide. These contrasting patterns may stem from diVerent biological characteristics of the species.…”

Section: Discussionmentioning

confidence: 99%

“…Studies on diVerent marine organisms have shown contrasting results. Some species exhibit little gene Xow and strong genetic divergence between Atlantic and Mediterranean populations (Kotoulas et al 1995;Borsa et al 1997;Chikhi et al 1997;Naciri et al 1999;Aurelle et al 2003;Bargelloni et al 2003Bargelloni et al , 2005, while others show very high levels of gene Xow (Bargelloni et al 2003(Bargelloni et al , 2005Costagliola et al 2004;Duran et al 2004;Zardoya et al 2004). An emerging pattern is shown in cases of closely related species.…”

Section: Introductionmentioning

confidence: 99%

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Phylogeography and evolution of the triplefin Tripterygion delaisi (Pisces, Blennioidei)

Domingues

Almada²,

Santos

et al. 2006

Mar Biol

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The genus Tripterygion (Risso 1826) is restricted to the eastern Atlantic and the Mediterranean, and comprises only three species. T. melanuros and T. tripteronotus are essentially endemic to the Mediterranean, while Tripterygion delaisi occurs in the Atlantic and in the Mediterranean. Two subspecies of T. delaisi have been described (T. d. xanthosoma in the Mediterranean and T. d. delaisi in the Atlantic). Several scenarios have been proposed for the evolution of T. delaisi subspecies, but so far its subspeciation process is not clear. In this study we present a population survey of T. delaisi including specimens from the two recognized subspecies. We combined a phylogeographic approach with estimates of the direction of migration (between the Atlantic and the Mediterranean) and of the coalescence time of the two subspecies, using polymorphic mitochondrial and nuclear genes. The results of this study clearly support the existence of two Tripterygion delaisi clades, one in the eastern Atlantic islands and another in the Atlantic coasts of Europe and in the Mediterranean. Historical migration between the islands and Western Europe plus Mediterranean was restricted, and showed a westbound trend, with a higher number of migrants going from the Western Europe plus Mediterranean into the islands. We estimated the time of coalescence of both groups of T. delaisi to be more recent than the onset of Pleistocene glaciations (1.7 Mya). Our results are consistent with previous hypothesis that consider successive dispersal events of a Tripterygion ancestor from the western African coast colonizing the Atlantic islands and the Mediterranean, promoting the evolutionary divergence between these areas.

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“…Recently, studies have focused on the relationship between the eastern Atlantic and Mediterranean (Alvarado Bremer et al, 2005;Bargelloni et al, 2003Bargelloni et al, , 2005Costagliola et al, 2004;Domingues et al, 2005;Lemaire et al, 2005;Naciri et al, 1999;Stamatis et al, 2004;Zardoya et al, 2004). In contrast, little is known about genetic relationships between populations of the Macaronesian islands (Azores, Madeira, Canaries, and Cape Verde; Almada et al, 2005;Guillemaud et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

Historical population dynamics and demography of the eastern Atlantic pomacentrid Chromis limbata (Valenciennes, 1833)

Domingues

Santos

Brito

et al. 2006

Molecular Phylogenetics and Evolution

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Recent studies have focused on the relationship between the marine fauna of the eastern Atlantic and the Mediterranean Sea, but within the Atlantic, little is known about genetic relationships between populations of the Macaronesian islands. In this study, we tested whether the paleo-climatology and paleo-oceanography of the region could predict the genetic relationships among three eastern Atlantic populations (Azores, Madeira, and Canaries) of a damselWsh, Chromis limbata, and compared our results with its Mediterranean and adjacent Atlantic sister species, Chromis chromis. We combined phylogeographic and coalescent approaches using the fast evolving mitochondrial control region gene. No population structure was found for the three archipelagos. The coalescence time estimated for C. limbata (0.857-1.17 Mya) was much greater than that estimated for C. chromis. We propose that this diVerence reXects diVerences in glaciating extents in the Northeastern Atlantic and the Mediterranean. Diversity indexes (Hd and genetic distances) together with historical demographic parameters of C. limbata ( and g) revealed a more stable population history when compared to C. chromis. Our results suggest that the Macaronesian populations of C. limbata have probably been less aVected by the last glaciation than the Mediterranean populations of C. chromis. Migration across the three archipelagos was estimated and a prevailing northwest trend was detected. This result supports the idea of a colonization of the Azores by warm water Wsh from Madeira or the westernmost Canary islands which acted as major glacial refugia for the tropical and subtropical marine fauna during the glaciations.

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The Atlantic–Mediterranean transition: Discordant genetic patterns in two seabream species, Diplodus puntazzo (Cetti) and Diplodus sargus (L.)

Cited by 91 publications

References 35 publications

The influence of oceanographic fronts and early-life-history traits on connectivity among littoral fish species

The influence of oceanographic fronts and early-life-history traits on connectivity among littoral fish species

Phylogeography and evolution of the triplefin Tripterygion delaisi (Pisces, Blennioidei)

Historical population dynamics and demography of the eastern Atlantic pomacentrid Chromis limbata (Valenciennes, 1833)

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