Comparative phylogeography and connectivity of sibling species of the marine copepod Clausocalanus (Calanoida)

Blanco-Bercial, Leocadio; Álvarez-Marqués, Florentina; Bucklin, Ann

doi:10.1016/j.jembe.2011.05.011

Cited by 44 publications

(31 citation statements)

References 61 publications

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“…Therefore, we believe the results would be similar even if we had sampled more sites around the Arctic. There is also numerous evidence of panmictic populations and/or high gene flow of planktonic copepods across extensive geographic ranges of the Northern Hemisphere, which has been reported for the Atlantic Calanus finmarchicus (Provan et al 2009), Pacific Calanus sinicus (Huang et al 2014), cosmopolitan Clausocalanus arcuicornis (Blanco-Bercial et al 2011), and Arctic Pseudocalanus minutus (Aarbakke et al 2014;Questel et al 2016). At the same time, to our knowledge, there is only one study confirming the existence of two populations of C. glacialis, in the Arctic and the North Pacific (Bering Sea), although the latter was not reproductively established in the Arctic Ocean (Nelson et al 2009).…”

Section: Discussionmentioning

confidence: 94%

Postglacial expansion of the Arctic keystone copepod Calanus glacialis

et al. 2017

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Calanus glacialis, a major contributor to zooplankton biomass in the Arctic shelf seas, is a key link between primary production and higher trophic levels that may be sensitive to climate warming. The aim of this study was to explore genetic variation in contemporary populations of this species to infer possible changes during the Quaternary period, and to assess its population structure in both space and time. Calanus glacialis was sampled in the fjords of Spitsbergen (Hornsund and

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Section: Discussionmentioning

confidence: 94%

Postglacial expansion of the Arctic keystone copepod Calanus glacialis

et al. 2017

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“…This is especially because the spawning period of P. nodosus is expected to coincide with synchronous mass coral spawning in Singapore [12,68], and high connectivity and high levels of larval exchange have been predicted for broadcast-spawning coral larvae among Singapore's southern islands during this period [69]. High levels of connectivity among populations typically increase effective population sizes, and could have contributed to relatively high levels of genetic diversity [70–72] observed here. However, while PLD plays a major role in determining connectivity, other factors have also been shown to affect the connectivity patterns so that PLD is not necessarily a good predictor of connectivity (e.g.…”

Section: Discussionmentioning

confidence: 99%

Beyond the Coral Triangle: high genetic diversity and near panmixia in Singapore's populations of the broadcast spawning sea starProtoreaster nodosus

et al. 2016

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The Coral Triangle is widely considered the most important centre of marine biodiversity in Asia while areas on its periphery such as the South China Sea, have received much less interest. Here, we demonstrate that a small population of the knobbly sea star Protoreaster nodosus in Singapore has similarly high levels of genetic diversity as comparable Indonesian populations from the Coral Triangle. The high genetic diversity of this population is remarkable because it is maintained despite decades of continued anthropogenic disturbance. We postulate that it is probably due to broadcast spawning which is likely to maintain high levels of population connectivity. To test this, we analysed 6140 genome-wide single nucleotide polymorphism (SNP) loci for Singapore's populations and demonstrate a pattern of near panmixia. We here document a second case of high genetic diversity and low genetic structure for a broadcast spawner in Singapore, which suggests that such species have high resilience against anthropogenic disturbances. The study demonstrates the feasibility and power of using genome-wide SNPs for connectivity studies of marine invertebrates without a sequenced genome.

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“…Therefore, it is often predicted that marine plankton will exhibit low population genetic structure even between geographically distant populations (Peijnenburg et al 2005;Provan et al 2009). However, many empirical studies have detected genetic structure over a range of spatial scales, including between ocean basins, between gyres within an ocean basin, and regionally among coastal embayments and estuaries (Papetti et al 2005;Blanco-Bercial et al 2011;Chen and Hare 2011). Additionally, genetic structure sometimes differs between holoplanktonic species collected at the same sites (e.g., Calanus spp.…”

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confidence: 99%

Equatorial dispersal barriers and limited population connectivity among oceans in a planktonic copepod

Norton

Goetze

2013

Limnology & Oceanography

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We investigated population genetic structure within and between ocean basins in the common mesopelagic copepod, Haloptilus longicornis, using the mitochondrial marker cytochrome oxidase subunit II (mtCOII, 43 locations, n 5 1059). We found highly significant genetic divergence among ocean basins (global F ST 5 0.20; p , 0.00001), with the exception of relatively weak genetic divergence between the South Atlantic and Indian oceans. Strong genetic breaks also were observed between populations in the northern and southern subtropical gyres of both the Atlantic and Pacific oceans (Atlantic: F CT 5 0.21, Pacific: F CT 5 0.15, AMOVA, p , 0.00001 for both oceans; where F CT measures genetic divergence among groups). In the Atlantic, a region of low abundance for H. longicornis in equatorial waters coincided with the location of the observed genetic break (, 0-12uN), suggesting the presence of a physical or bio-physical barrier that effectively limits migration among subtropical gyre systems for this species. Using oceanographic data from a basin-scale transect, we provide the first environmental portrait of an open-ocean dispersal barrier for the marine plankton. Within all four Atlantic and Pacific subtropical gyres, we found a general lack of genetic subdivision among sites, as has been observed in a few other globally distributed plankton species.

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Comparative phylogeography and connectivity of sibling species of the marine copepod Clausocalanus (Calanoida)

Cited by 44 publications

References 61 publications

Postglacial expansion of the Arctic keystone copepod Calanus glacialis

Postglacial expansion of the Arctic keystone copepod Calanus glacialis

Beyond the Coral Triangle: high genetic diversity and near panmixia in Singapore's populations of the broadcast spawning sea starProtoreaster nodosus

Equatorial dispersal barriers and limited population connectivity among oceans in a planktonic copepod

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