A panmictic fiddler crab from the coast of Brazil? Impact of divergent ocean currents and larval dispersal potential on genetic and morphological variation in Uca maracoani

Wieman, Anna C.; Berendzen, Peter B.; Hampton, Kelsey R.; Jang, Ji Eun; Hopkins, Melanie J.; Jurgenson, James E.; McNamara, John Campbell; Thurman, Carl L.

doi:10.1007/s00227-013-2327-0

Cited by 37 publications

(41 citation statements)

References 48 publications

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“…Recent studies with other decapods, with sampling at several points of the South American coast, found similar results on genetic homogeneity (Laurenzano et al 2012, Terossi and Mantelatto 2012, Rossi and Mantelatto 2013, Wieman et al 2013, Laurenzano et al 2013). These authors indicated the high capacity of planktonic larval dispersal as the main factor responsible for this homogeneity over their distributions, making it impossible to establish a population structure over this broad geographical range (Gopurenko and Hughes 2002).…”

Section: Discussionsupporting

confidence: 60%

Inferring population connectivity across the range of distribution of the stiletto shrimp Artemesia longinaris Spence Bate, 1888 (Decapoda, Penaeidae) from DNA barcoding: implications for fishery management

Carvalho-Batista¹,

Negri²,

Pileggi³

et al. 2014

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Artemesia longinaris is a marine shrimp endemic to the southwestern Atlantic and distributed from Atafona, Rio de Janeiro (Brazil) to Rawson, Chubut (Argentina). In recent years, this species has become an important target of the commercial fishery as a consequence of the decline in the fishery of more traditional and profitable marine shrimps. In addition, phenotypic variations have been documented in populations along its distribution. Therefore, investigations on the genetics of the fishing stocks are necessary for the development of sustainable management strategies and for understanding the possible sources of these variations. The mitochondrial gene Cytochrome Oxidase I (COI) was used to search for evidence of genetic structure among the populations of Artemesia longinaris and to analyze the phylogenetic relationships among them. A total of 60 specimens were collected from seven different localities, covering its geographical range. The final alignment showed 53 haplotypes (48 individuals and 5 shared), with no biogeographical pattern. The low genetic divergence found, with a non-significant FST value, also suggests the absence of population structure for this gene. These findings indicate a continuous gene flow among the populations analyzed, suggesting that the phenotypic variation is a consequence of different environmental conditions among the localities.

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Section: Discussionsupporting

confidence: 60%

Inferring population connectivity across the range of distribution of the stiletto shrimp Artemesia longinaris Spence Bate, 1888 (Decapoda, Penaeidae) from DNA barcoding: implications for fishery management

Carvalho-Batista¹,

Negri²,

Pileggi³

et al. 2014

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show abstract

“…Like east African U. annulipes (Silva et al 2010), no genetic structure has yet been found across coastal populations of fiddler crabs in Brazil. Wieman et al (2013) found little genetic variation in the DNA sequences of cytochrome oxidase-1 haplotypes in U. (U.)…”

Section: Intraspecific Variationmentioning

confidence: 91%

“…The greatest variation occurs in the branchial and hepatic regions. However, given available genetic information for Uca species from Brazil, such differentiation does not appear to correlate with underlying genetic structure (Wieman et al 2013).…”

Section: Introductionmentioning

confidence: 97%

Intraspecific variation in carapace morphology among fiddler crabs (Genus Uca) from the Atlantic coast of Brazil

Hampton

Hopkins²,

McNamara³

et al. 2014

Aquat. Biol.

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Isolation due to geographical barriers should promote genetic and morphological divergence among populations. Marine currents flowing in opposing directions along landmasses can constitute barriers that isolate populations dependent upon aquatic dispersal. The distribution of fiddler crabs (genus Uca) is regulated primarily by the oceanic transport of their planktonic larvae and by available adult habitat. Along the Brazilian coast of eastern South America, the flow of 2 major oceanic currents separates northern from southern Uca populations, which may promote intraspecific divergence in 'trans-Brazilian' species. Populations of 10 Uca species were sampled at 64 locations north and south of the Ponta do Calcanhar, Rio Grande do Norte, Brazil. Carapace shape was assessed using geometric morphometrics to analyze 12 surface landmarks in 1319 female crabs. Carapace shape differs significantly in each species. In morphospace, the carapace forms of the 10 species appear to separate into traditional subgeneric clusters. Within the 8 species exhibiting trans-Brazilian distributions, northern and southern populations show distinct carapace differences. Depending on species, either the hepatic or the branchial region is larger in northern populations. Since significant genetic variability among such populations has not been confirmed, divergence in carapace shape suggests significant ecological modulation of phenotype within each species. Apparently, environmental differences between northern and southern localities exert a greater impact on carapace morphology than impeded gene flow. The drivers underpinning diversification of carapace shape remain unknown, however.

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“…In South America, other studies using COI gene with different groups of decapods have found no structuration among different localities: Laurenzano et al (2012), with fiddler crab Uca uruguayensis (Nobili, 1901); Rossi and Mantelatto (2013), with estuarine shrimp Macrobrachium olfersii (Wiegmann, 1836); Wieman et al (2013), with Uca maracoani (Latreille, 1802e1803); and Laurenzano et al (2013), with Uca rapax, Smith 1870. However, when analyzing the population structure of F. paulensis using allozymes, Gusmão et al (2005) found that the studied populations were genetically structured in two different stocks (one from South and other from Southeast Brazil).…”

Section: Discussionmentioning

confidence: 96%

Genetic homogeneity in the commercial pink shrimp Farfantepenaeus paulensis revealed by COI barcoding gene

Teodoro

Terossi

Costa

et al. 2015

Estuarine, Coastal and Shelf Science

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a b s t r a c tThe pink shrimp Farfantepenaeus paulensis is one of the most commercially exploited species in Brazil's South and Southeastern regions. Specific information about the status of its genetic variation is necessary to promote more effective management procedures. The genetic variation of the population of F. paulensis was investigated in five localities along southern and southeastern coast of Brazil. Sampling was performed with a commercial fishing boat. Total genomic DNA was extracted from abdominal muscle tissues and was used to DNA amplification by PCR. The COI gene was used as a DNA barcoding marker. The 570 bp COI gene sequences were obtained from all 45 individuals. The haplotype network showed no genetic variability among the population stocks, which was confirmed by Molecular Variance Analysis. The final alignment showed that inside species there is haplotype sharing among the sampled localities, since one haplotype is shared by 38 individuals belonging to all the five sampled regions, with no biogeographic pattern. This result is reasonable since there are no geographical barriers or habitat disjunction that might serve as a barrier to gene flow among the sampled localities. Possible reasons and consequences of the genetic homogeneity found are discussed. The results complement ecological studies concerning the offseason: since it is a single stock, the same protection strategy can be applied. However, the genetic homogeneity found in this study combined with the intensive fishery effort and the species biology can result in severe consequences for the F. paulensis.

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A panmictic fiddler crab from the coast of Brazil? Impact of divergent ocean currents and larval dispersal potential on genetic and morphological variation in Uca maracoani

Cited by 37 publications

References 48 publications

Inferring population connectivity across the range of distribution of the stiletto shrimp Artemesia longinaris Spence Bate, 1888 (Decapoda, Penaeidae) from DNA barcoding: implications for fishery management

Inferring population connectivity across the range of distribution of the stiletto shrimp Artemesia longinaris Spence Bate, 1888 (Decapoda, Penaeidae) from DNA barcoding: implications for fishery management

Intraspecific variation in carapace morphology among fiddler crabs (Genus Uca) from the Atlantic coast of Brazil

Genetic homogeneity in the commercial pink shrimp Farfantepenaeus paulensis revealed by COI barcoding gene

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