Conference paper

Appeared in: Advances in Decapod Crustacean Research. Proceedings of the 7th Colloquium Crustacea Decapoda Mediterranea

Editor list: Paula, JPM; Flores, AAV; Fransen, CHJM

Publication year: 2001

Pages: 105-110

ISBN: 978-90-481-5688-7

eISBN: 978-94-017-0645-2

DOI Link: https://doi.org/10.1007/978-94-017-0645-2_10

Conference: 7th Colloquium Crustacea Decapoda Mediterranea

Title of series: Developments in Hydrobiology

Number in series: 154

Abstract: 

Molecular data were used to evaluate the validity of the genus Neopisosoma Haig, 1960. Comparisons of morphological features within Neopisosoma suggest the existence of two lineages, represented among others, by N. angustifrons (Benedict, 1901) and N. neglectum Werding (1986). Both lineages of Neopisosoma are more similar to two morphologically different species groups of the genus Pachycheles, than to congeners of the other group. Comparative morphology of larvae from N. angustifrons, N. neglectum and species of Pachycheles shows that N. angustifrons closely resembles Pachycheles species, whilst N. neglectum is set apart. Sequences of a 465 bp segment of the mitochondrial gene cytochrome oxidase I (COI) were obtained and used to infer phylogenetic relationships among N. angustifrons, N. neglectum, one species of Pachycheles and seven other species of porcellanids, representing three other genera. Results of the molecular analysis were congruent to results of comparative morphological studies of larvae: N. angustifrons grouped with the Pachycheles species, whereas N. neglectum is placed apart. This led us to the conclusion that the genus Neopisosoma is probably paraphyletic and that the criterion used by Haig (1960) is not reliable to define the genus. A revision on a world-wide basis of the genera included, and additional sequence information will be necessary to satisfactorily resolve relationships within the Porcellanidae.

Harvard Citation style: Werding, B., Hiller, A. and Misof, B. (2001) Evidence of paraphyly in the neotropical Porcellanid genus Neopisosoma (Crustacea: Anomura: Porcellanidae) based on molecular characters, in Paula, J., Flores, A. and Fransen, C. (eds.) Advances in Decapod Crustacean Research. Proceedings of the 7th Colloquium Crustacea Decapoda Mediterranea. Dordrecht: Springer Netherlands. pp. 105-110. https://doi.org/10.1007/978-94-017-0645-2_10

APA Citation style: Werding, B., Hiller, A., & Misof, B. (2001). Evidence of paraphyly in the neotropical Porcellanid genus Neopisosoma (Crustacea: Anomura: Porcellanidae) based on molecular characters. In Paula, J., Flores, A., & Fransen, C. (Eds.), Advances in Decapod Crustacean Research. Proceedings of the 7th Colloquium Crustacea Decapoda Mediterranea. (pp. 105-110). Springer Netherlands. https://doi.org/10.1007/978-94-017-0645-2_10