Implications of life history for genetic structure and migration rates of southern African coastal invertebrates: planktonic, abbreviated and direct development

Teske, Peter R.; Papadopoulos, Isabelle; Zardi, Gerardo I.; McQuaid, Christopher D.; Edkins, M. T.; Griffiths, Charles L.; Barker, Nigel P.

doi:10.1007/s00227-007-0724-y

Cited by 90 publications

(93 citation statements)

References 58 publications

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“…Local variations in lifeehistory parameters, such as larval duration, but also delay of metamorphosis, initiation of spawning, local mortality or vertical position of the larvae within the water column, may provoke differences in the genetic structures of two closely-related species as shown for Mytilus (Becker et al, 2007). On the other hand, there are many proofs that gene flow is not necessarily proportional to the duration of the larval stage (e.g., Todd et al, 1998;Eckert, 2003;Teske et al, 2007). Closely-related species with similar life history and dispersal abilities may have contrasting levels of genetic structuring (Patarnello et al, 2007).…”

Section: Planktonic Larvae Propertiesmentioning

confidence: 99%

“…In sessile coastal invertebrates, life history traits (e.g., direct development versus planktonic larvae) mainly determine dispersal capacity (Teske et al, 2007). Various geographic and hydrological barriers, as well as habitat preferences influence dispersal success and consequently the level of gene flow (Palumbi, 1994;McMillen-Jackson and Bert, 2003).…”

Section: Introductionmentioning

confidence: 99%

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Comparative phylogeography of two sister (congeneric) species of cardiid bivalve: Strong influence of habitat, life history and post-glacial history

Tarnowska

Krakau

Jacobsen

et al. 2012

Estuarine, Coastal and Shelf Science

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Sister (congeneric) species may exhibit disparate patterns of biogeographic genetic structures due to different life histories and habitat preferences. The common cockle Cerastoderma edule and the lagoon cockle Cerastoderma glaucum probably diverged from their common ancestor in the present territory of Sahara around 5 million years ago. Although it is difficult to separate both species morphologically, various genetic markers, both mitochondrial and nuclear, clearly distinguish them. Furthermore, their lifestyles are different, as C. edule has a much less fragmented coastal habitat and a longer duration of pelagic larval stage than C. glaucum. A comparative genetic analysis was conducted on 17 populations of C. edule and 13 populations of C. glaucum using a 506 bp fragment of mitochondrial DNA (COI). We tested the hypothesis that differences in habitat types and life history are reflected in the genetic structure patterns of these two cockles. Indeed substantial differences in population genetic structures between them are revealed. Genetic diversity within C. glaucum populations decreases northwards as a consequence of post-glacial (re)colonization from southern refugia, while C. edule displays an opposite pattern indicating survival in glacial refuges in the northern Atlantic. Among populations within geographic groups, genetic differentiation is low in C. edule, probably as a result of larval dispersal with coastal currents, while it is extremely high in C. glaucum, best explained by the fragmented habitats. Interestingly, long distance divergence is less expressed in C. glaucum than in C. edule, which supports the speculation that migrating birds (frequently observed in lagoons) may occasionally transport the former more often or more efficiently than the latter. The approach applied in this study (e.g., rarefaction procedure, selection of samples of both species from the same regions) enabled a new and reliable comparative analysis of the existing raw datasets.

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Section: Planktonic Larvae Propertiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Comparative phylogeography of two sister (congeneric) species of cardiid bivalve: Strong influence of habitat, life history and post-glacial history

Tarnowska

Krakau

Jacobsen

et al. 2012

Estuarine, Coastal and Shelf Science

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“…Among benthic marine invertebrates, dispersal is typically accomplished by planktonic larvae, which are capable of dispersing passively in ocean currents, thus promoting genetic connectivity between geographically distant locations (Scheltema 1988;Ribeiro et al 2010). On the other hand, many marine species have direct development, lacking planktonic larvae, which imposes restrictions on their dispersal potential (Thiel 2003;Teske et al 2007). However, there is increasing evidence that the duration of pelagic stages is not directly correlated with dispersal potential (Johannesson 1988;Strathmann et al 2002).…”

Section: Introductionmentioning

confidence: 99%

Long-distance dispersal, low connectivity and molecular evidence of a new cryptic species in the obligate rafter Caprella andreae Mayer, 1890 (Crustacea: Amphipoda: Caprellidae)

et al. 2012

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The amphipod Caprella andreae Mayer, 1890 was recorded for the first time in Southern Iberian Peninsula (36°44 0 15 00 N, 3°59 0 38 00 W). This species is the only obligate rafter of the suborder Caprellidea and has been reported to attach not only to floating objects such as ropes or driftwoods but also to turtle carapaces. Mitochondrial and nuclear markers were used to examine dispersal capabilities and population genetic structure of C. andreae across seven localities in the Mediterranean and Atlantic Ocean collected from floating substrata with different dispersal patterns. The strong population differentiation with no haplotypes shared between populations suggests that C. andreae is quite faithful to the substratum on which it settles. In addition, the proportionally higher genetic diversity displayed in populations living on turtles as well as the presence of highly differentiated haplotypes in the same turtle population may be indicative that these populations survive longer, which could lead C. andreae to prefer turtles instead of floating objects to settle and disperse. Therefore, rafting on floating objects may be sporadic, and ocean currents would not be the most important factor shaping patterns of connectivity and population structure in this species. Furthermore, molecular phylogenetic analyses revealed the existence of a cryptic species whose estimates of genetic divergence are higher than those estimated between C. andreae and other congeneric species (e.g. Caprella dilatata and Caprella penantis). Discovery of cryptic species among widely distributed small marine invertebrates is quite common and, in this case, prompts for a more detailed phylogenetic analysis and taxonomic revision of genus Caprella. On the other hand, this study also means the first record of the gammarids Jassa cadetta and Elasmopus brasiliensis and the caprellid Caprella hirsuta on drifting objects.

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“…Levels of gene flow among them can be estimated using coalescent samplers, which provide better estimates of connectivity than F-statistics because they take into consideration the evolutionary histories and effective population sizes of the populations (Marko & Hart 2011). At smaller geographic scales and in the absence of strong oceanographic barriers, populations tend to exhibit lower levels of differentiation (Teske et al 2007) that merely manifest themselves in allele frequency differences (Johnson & Black 1984, Nicastro et al 2008. We attempted to estimate levels of gene flow among bay and coast populations using the coalescent samplers MIGRATE-N v3.2 (Beerli 2009) and IMa2 (Hey 2010), but neither method produced usable results for any of the data sets (i.e.…”

Section: Discussionmentioning

confidence: 99%

“…The observed pattern was attributed to asymmetrical levels of gene flow between bays and the open coast, with bays acting as sources of propagules (Nicastro et al 2008). As the structuring effects of oceanographic barriers can affect species with different levels of dispersal capability in a similar way (Teske et al 2007), genetic structure resulting from higher levels of genetic diversity in bays would be expected to be present in at least some sympatric species. Alternatively, sweepstakes-chance matching should manifest itself in lower levels of genetic diversity in new recruits relative to the adult population (Hedgecock 1994).…”

Section: Free Ree Access Ccessmentioning

confidence: 99%

Dispersal barriers and stochastic reproductive success do not explain small-scale genetic structure in a broadcast spawning marine mussel

Teske¹,

Papadopoulos²,

Barker³

et al. 2013

Mar. Ecol. Prog. Ser.

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Implications of life history for genetic structure and migration rates of southern African coastal invertebrates: planktonic, abbreviated and direct development

Cited by 90 publications

References 58 publications

Comparative phylogeography of two sister (congeneric) species of cardiid bivalve: Strong influence of habitat, life history and post-glacial history

Comparative phylogeography of two sister (congeneric) species of cardiid bivalve: Strong influence of habitat, life history and post-glacial history

Long-distance dispersal, low connectivity and molecular evidence of a new cryptic species in the obligate rafter Caprella andreae Mayer, 1890 (Crustacea: Amphipoda: Caprellidae)

Dispersal barriers and stochastic reproductive success do not explain small-scale genetic structure in a broadcast spawning marine mussel

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