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Suitability of cuticular pores and sensilla for harpacticoid copepod species delineation and phylogenetic reconstruction


Karanovic, T and Kim, K, Suitability of cuticular pores and sensilla for harpacticoid copepod species delineation and phylogenetic reconstruction, Arthropod Structure and Development, 43, (6) pp. 615-658. ISSN 1467-8039 (2014) [Refereed Article]

Copyright Statement

Copyright 2014 Elsevier

DOI: doi:10.1016/j.asd.2014.09.003


Cuticular organs have not been described systematically in harpacticoids until recently, and they have never been used as characters for reconstructing phylogenetic relationships in any crustacean group. We survey cuticular pores and sensilla on somites in ten Miraciidae species, belonging to six genera, from Korea, Australia, and Russia. Nine species belong to the subfamily Stenheliinae, while the outgroup belongs to the subfamily Diosaccinae. We aim to compare phylogenetic trees reconstructed for these harpactioids based on: 1) cuticular organs (with 76 characters scored, 71% of them phylogenetically informative); 2) traditionally used macro-morphological characters (66 scored, 77% of them informative); and 3) mtCOI DNA data. All analyses suggest that cuticular organs are useful characters for harpacticoid species delineation, although not as sensitive as some fast-evolving molecular markers. Reconstructed cladograms based on all three datasets show very high bootstrap values for clades representing distinct genera, suggesting that cuticular organs are suitable characters for studying phylogenetic relationships. Bootstrap values for the more basal nodes differ among the different cladograms, as do the sister-group relationships they suggest, indicating that cuticular organs probably have different evolutionary constraints from macro-morphological characters. Cuticular organs could be quite useful in the study of old museum specimens and fossil crustaceans.

Item Details

Item Type:Refereed Article
Keywords:Stenheliinae, marine benthos, cladistics, DNA barcoding, novel characters
Research Division:Biological Sciences
Research Group:Evolutionary biology
Research Field:Animal systematics and taxonomy
Objective Division:Environmental Management
Objective Group:Coastal and estuarine systems and management
Objective Field:Coastal or estuarine biodiversity
UTAS Author:Karanovic, T (Dr Tomislav Karanovic)
ID Code:99489
Year Published:2014
Web of Science® Times Cited:14
Deposited By:IMAS Research and Education Centre
Deposited On:2015-03-25
Last Modified:2018-03-19

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