Molecular phylogeny and biogeographic history of the European Maja spider crabs (Decapoda, Majidae)

Sotelo, Graciela; Morán, Paloma; Posada, David

doi:10.1016/j.ympev.2009.05.009

Cited by 40 publications

(37 citation statements)

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“…However, species identification using the key morphological characters for adult Majidae of Neumann (1998) may be difficult for non-specialists to apply. Results of recent genetic analyses support the recognition of M. brachydactyla and M. squinado as different species (Sotelo et al, 2008(Sotelo et al, , 2009. M. brachydactyla has been reported in the eastern Atlantic, while M. squinado is restricted to the Mediterranean Sea (Neumann, 1998;d'Udekem d'Acoz, 1999;Sotelo et al, 2008Sotelo et al, , 2009.…”

Section: Introductionmentioning

confidence: 74%

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Identification of European species of Maja (Decapoda: Brachyura: Majidae): RFLP analyses of COI mtDNA and morphological considerations

Guerao¹,

Andrée²,

Froglia

et al. 2011

Sci. Mar.

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SUMMARY: Four species of crabs of the genus Maja have been described along the European coast: M. brachydactyla, M. squinado, M. goltziana and M. crispata. The commercially important species M. brachydactyla and M. squinado achieve the largest body sizes and are the most similar in morphology, and are therefore easily confused. The four species of Maja were identified using a novel morphometric index and a polymerase chain reaction followed by restriction fragment length polymorphism analysis (RFLP). The relationship between carapace length and the distance between the tips of antorbital spines was used to distinguish adults of M. brachydactyla and M. squinado. PCR-RFLP analysis of a partial sequence of the mitochondrial cytochrome oxidase type I (COI) revealed that the four species of the genus Maja can be unambiguously discriminated using the combination of restriction endonucleases enzymes HpyCH4V and Ase I. The molecular identification may be particularly useful in larvae, juvenile and young crabs, when the morphological differences found in adults are not applicable.Keywords: Maja, M. squinado, M. brachydactyla, molecular identification, morfometry, COI, RFLP. RESUMEN: Identificación de las especies europeas del género Maja (Decapoda: Brachyura: Majidae): análisis de PCR-RFLP de una región del mtADN COI y consideraciones morfológicas. -Cuatro especies del género Maja han sido descritas en las costas europeas: M. brachydactyla, M. squinado, M. goltziana y M. crispata. Las especies M. brachydactyla y M. squinado, que tienen importancia comercial, alcanzan los tamaños más grandes y son morfológicamente muy similares, siendo muy fácil confundirlas. La identificación de las cuatro especies se ha realizado utilizando un nuevo índice morfométrico y un análisis de polimorfismos de fragmentos de restricción (RFLP). La relación entre la longitud del cefalotórax y la distancia entre los extremos distales de las espinas antorbitales se ha utilizado para la diferenciación de los adultos de M. brachydactyla y M. squinado. El análisis PCR-RFLP de una secuencia parcial de la citocromo oxidasa tipo I mitocondrial (COI) indica que las cuatro especies del género Maja pueden ser discriminadas usando una combinación de las endonucleasas HpyCH4V y Ase I. La identificación molecular puede ser particularmente útil en las larvas, juveniles y cangrejos jóvenes, cuando las diferencias morfológicas encontradas en los adultos no son aplicables.Palabras clave: Maja, M. squinado, M. brachydactyla, identificación molecular, morfometría, COI, RFLP.

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Section: Introductionmentioning

confidence: 74%

“…crispata Risso, 1827;M. goltziana D'Oliveira, 1888;and M. squinado (Herbst, 1788) (Neumann, 1998;Sotelo et al, 2008Sotelo et al, , 2009. Maja brachydactyla and M. squinado are of high commercial value due to their larger size (Števčić, 1974;Le Duff, 1990).…”

Section: Introductionmentioning

confidence: 99%

Identification of European species of Maja (Decapoda: Brachyura: Majidae): RFLP analyses of COI mtDNA and morphological considerations

Guerao¹,

Andrée²,

Froglia

et al. 2011

Sci. Mar.

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“…For example, mtDNA resolved the phylogenetic relationships among European spider crabs in the genus Maja and provided insights into the biogeographical origins of species in the easternAtlantic and Mediterranean [28]. Further, mtDNA sequences confirmed the taxonomic standings of three European species, M. brachydactyla, M. squinado and M. crispate, which are often combined in catch statistics [29].…”

Section: The Link Between Genetic Traits and Climatementioning

confidence: 86%

Climate change and population genetic structure of marine species

Brutto

Arculeo

Grant

2011

Chemistry and Ecology

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“…M. brachydactyla inhabits the eastern Atlantic from the British Isles to Senegal and has a high commercial value, while M. squinado inhabits the Mediterranean and is considered an endangered species (UNEP 1996, Martín et al 2012, Sotelo et al 2008, Guerao and Rotllant 2010, Guerao et al 2011, Abelló et al 2014, although it was abundant until the first half of the 20 th century (Pons Muñoz 1994). Until recently, M. brachydactyla was considered a synonym of M. squinado (Zariquiey-Álvarez 1968, Neumann 1996, Ng et al 2008), but molecular studies indicated that M. squinado is more closely related to M. crispata than to M. brachydactyla (Sotelo et al 2009). Molecular analysis also revealed that the divergence between M. brachydactyla and M. squinado-M. crispata clade occurred in the Miocene (9.5 mya) and the divergence between M. squinado and M. crispata, occurred in the Pliocene (3.9 mya).…”

Section: Introductionmentioning

confidence: 99%

Consistent habitat segregation between sexes in the spider crabs Maja brachydactyla and Maja squinado (Brachyura), as revealed by stable isotopes

Guerao¹,

Rotllant²,

Gisbert³

et al. 2011

Sci. Mar.

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Summary: Differences in the resource use patterns of males and females of the spider crab species Maja brachydactyla Balss, 1922 and M. squinado (Herbst, 1788) from several geographic areas (three in the Atlantic and two in the Mediterranean) were studied through the analysis of stable isotopes of carbon and nitrogen in the exoskeleton of post-pubertal (adult) specimens. Results confirmed that males and females from the same population usually did not differ in δ 15 N values and hence foraged at the same trophic level. In contrast, females were usually enriched in 13 C as compared with males from the same population, thus suggesting that females use shallower habitats than males before the terminal moult. The results reported here also indicate that stable isotopes can be useful for the traceability of commercial Maja species, but only if species and sex are incorporated in the analysis.Keywords: Maja brachydactyla; Maja squinado; stable isotopes; trophic level; sexual segregation; traceability. Segregación sexual del hábitat en los centollos Maja brachydactyla y Maja squinado (Brachyura) revelada mediante isótopos establesResumen: Se estudiaron mediante el análisis de isótopos estables de carbono y nitrógeno en el exoesqueleto de ejemplares adultos las diferencias en los patrones de uso de recursos de los machos y las hembras de los cangrejos Maja brachydactyla Balss, 1922 y M. squinado (Herbst, 1788) procedentes de varias zonas geográficas (tres en el Atlántico y dos en el Mediterráneo). Los resultados confirmaron que los machos y las hembras de la misma población, por lo general, no difieren de los valores de δ 15 N y por lo tanto se alimentaban en el mismo nivel trófico. En contraste, las hembras por lo general se hallan enriquecidas en 13 C en comparación con los machos de la misma población, lo que sugiere que las hembras ocupan hábitats menos profundos que los machos antes de la muda terminal. Los resultados aquí presentados indican también que los isóto-pos estables pueden ser útiles para la trazabilidad de las especies comerciales del género Maja, pero sólo si la identidad de la especies y el sexo del ejemplar se incorporan al análisis.Palabras clave: Maja brachydactyla; Maja squinado; isótopos estables; nivel trófico; segregación sexual; trazabilidad.Citation/Como citar este artículo: Guerao G., Rotllant G., Gisbert E., Uyà M., Cardona L. 2016. Consistent habitat segregation between sexes in the spider crabs Maja brachydactyla and Maja squinado (Brachyura), as revealed by stable isotopes. Sci. Mar. 80(1): 103-110. doi: http://dx

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Molecular phylogeny and biogeographic history of the European Maja spider crabs (Decapoda, Majidae)

Cited by 40 publications

References 37 publications

Identification of European species of <i>Maja</i> (Decapoda: Brachyura: Majidae): RFLP analyses of COI mtDNA and morphological considerations

Identification of European species of <i>Maja</i> (Decapoda: Brachyura: Majidae): RFLP analyses of COI mtDNA and morphological considerations

Climate change and population genetic structure of marine species

Consistent habitat segregation between sexes in the spider crabs <em>Maja brachydactyla</em> and <em>Maja squinado</em> (Brachyura), as revealed by stable isotopes

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