| Autor: |
Sullivan JP; National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, Maryland, USA.; Cornell University Museum of Vertebrates, Ithaca, New York, USA., Hopkins CD; Cornell University Museum of Vertebrates, Ithaca, New York, USA.; Department of Neurobiology and Behavior, Cornell University, Ithaca, New York, USA., Pirro S; Iridian Genomes, Bethesda, Maryland, USA., Peterson R; The George Washington University, Washington, D.C., USA., Chakona A; NRF-South African Institute for Aquatic Biodiversity, Makhanda, South Africa.; Department of Ichthyology and Fisheries Science, Rhodes University, Makhanda, South Africa., Mutizwa TI; NRF-South African Institute for Aquatic Biodiversity, Makhanda, South Africa.; Department of Ichthyology and Fisheries Science, Rhodes University, Makhanda, South Africa., Mukweze Mulelenu C; Département de Zootechnie, Faculté des Sciences Agronomiques, Université de Kolwezi, Kolwezi, Democratic Republic of the Congo.; Département de Gestion des Ressources Naturelles Renouvelables, Unité de recherche en Biodiversité et Exploitation durable des Zones Humides, Université de Lubumbashi, Lubumbashi, Democratic Republic of the Congo.; Laboratory of Biodiversity and Evolutionary Genomics, Katholieke Universiteit, Leuven, Belgium.; Zoology Department, Ichthyology, Royal Museum for Central Africa, Tervuren, Belgium., Alqahtani FH; National Centre for Bioinformatics, King Abdulaziz City for Science and Technology, Riyadh, Saudi Arabia., Vreven E; Laboratory of Biodiversity and Evolutionary Genomics, Katholieke Universiteit, Leuven, Belgium.; Zoology Department, Ichthyology, Royal Museum for Central Africa, Tervuren, Belgium., Dillman CB; Cornell University Museum of Vertebrates, Ithaca, New York, USA.; Department of Neurobiology and Behavior, Cornell University, Ithaca, New York, USA. |
| Abstrakt: |
Heteromormyrus Steindachner, 1866, a genus of Mormyridae (Teleostei: Osteoglossomorpha), has been monotypic since the description of Heteromormyruspauciradiatus (Steindacher, 1866) from a single specimen. No type locality other than "Angola" was given and almost no specimens have been subsequently identified to this species. In order to investigate the relationship of this taxon to fresh specimens collected in Angola and elsewhere, whole genome paired-end sequencing of DNA extracted from the holotype specimen of Heteromormyruspauciradiatus was performed and a nearly complete mitogenome assembled from the sequences obtained. Comparison of cytochrome oxidase I and cytochrome b sequences from this mitogenome to sequences from recently collected material reveal that Heteromormyruspauciradiatus is closely related to specimens identified as Hippopotamyrusansorgii (Boulenger, 1905), Hippopotamyrusszaboi Kramer, van der Bank & Wink, 2004, Hippopotamyruslongilateralis Kramer & Swartz, 2010, as well as to several undescribed forms from subequatorial Africa collectively referred to in the literature as the " Hippopotamyrusansorgii species complex" and colloquially known as "slender stonebashers." Previous molecular phylogenetic work has shown that these species are not close relatives of Hippopotamyruscastor Pappenheim, 1906, the type species of genus Hippopotamyrus Pappenheim, 1906 from Cameroon, and are thus misclassified. Hippopotamyrusansorgii species complex taxa and another species shown to have been misclassified, Paramormyropstavernei (Poll, 1972), are placed in genus Heteromormyrus and one genetic lineage from the Kwanza and Lucala rivers of Angola are identified as conspecific Heteromormyruspauciradiatus . Three additional new combinations and a synonymy in Mormyridae are introduced. The morphological characteristics and geographical distribution of the genus Heteromormyrus are reviewed. The electric organ discharges (EODs) of Heteromormyrus species are to be treated in a separate study. |
