Change search
ReferencesLink to record
Permanent link

Direct link
Betadevario ramachandrani, a new danionine genus and species from the Western Ghats of India (Teleostei: Cyprinidae: Danioninae)
Marine Products Export Development Authority, India.
Department of Vertebrate Zoology, Swedish Museum of Natural History.
Marine Biological Station, Zoological Survey of India.
Stockholm University, Faculty of Science, Department of Zoology. (Systematic Zoology)
Show others and affiliations
2010 (English)In: Zootaxa, ISSN 1175-5326, Vol. 2519, 31-47 p.Article in journal (Refereed) Published
Abstract [en]

Betadevario, new genus, with the single species B. ramachandrani, new species, from Karnataka, southwestern India, is closely related to Devario but differs from it in having two pairs of long barbels (vs. two pairs of short or rudimentary barbels, or barbels absent), wider cleithral spot which extends to cover three scales horizontally (vs. covering only one scale in width), long and low laminar preorbital process (vs. absent or a slender pointed spine-like process) along the anterior margin of the orbit, a unique flank colour pattern with a wide dark band along the lower side, bordered dorsally by a wide light stripe (vs. vertical bars, or stripes narrow and usually in greater number).

Place, publisher, year, edition, pages
2010. Vol. 2519, 31-47 p.
Keyword [en]
Karnataka, endemism, Devario, Danio, cytochrome b, rhodopsin, phylogeny
National Category
Natural Sciences
URN: urn:nbn:se:su:diva-43446ISI: 000279252200002OAI: diva2:356789
Available from: 2010-10-13 Created: 2010-10-13 Last updated: 2011-11-23Bibliographically approved
In thesis
1. A phylogenetic analysis of rasborin fishes (Teleostei, Cyprinidae)
Open this publication in new window or tab >>A phylogenetic analysis of rasborin fishes (Teleostei, Cyprinidae)
2010 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

The Danioninae (sensu lato) were until recently considered to be a paraphyletic group, comprising about 200 species and distributed over Africa and southern and eastern Asia. There was no morphological diagnosis for the Danioninae, and also the composition of the subfamily, and the interrelationships of included genera have been contentious. I have analysed morphological and DNA data from nearly all Asian genera and a few African genera of Danioninae (sensu stricto) with the objective of elucidating in particular the interrelationships among species of the large genus Rasbora, and the relationship of this genus to other danionines. Character optimization show the long intercostal ligament to be a synapomorphy of the Cypriniformes and the Cyprinidae to be diagnosed by the presence of the Y-shaped ligament, connecting the kinethmoid and mesethmoid. The Danioninae, however, are characterized by the absence of the Y-shaped ligament, here interpreted as a secondary loss. Phylogenetic analyses using morphological and molecular data show that the Danioninae are monophyletic with the exclusion of a group of East Asian species, now recognized as the Opsariichthyinae. By the exclusion of the Opsariichthyinae, the East Asian extension of the Danioninae becomes limited to the Pearl River basin in southern China. A phylogenetic analysis of the Middle East species Barilius mesopotamicus confirms that it is an Asian species of the Danioninae. The Asian distribution of the Danioninae is thus expanded from southeastern Iran to the Tigris-Euphrates River basin. Danioninae (sensu stricto) fall into three major groups, the Rasborini, and the Danionini with subtribes Danionina and Chedrina. The danionin foramen, a foramen in the cleithrum, is a synapomorphy of the Danionina. The Chedrina are characterized by the postcleithrum absent or greatly reduced. The rasborin process, a small process on epibranchial 4, is a synapomorphy of the Rasborini. The morphological phylogenetic analysis suggests the presence of an opercular canal as a synapomorphy of Rasbora, but this is not corroborated by the molecular phylogenetic analysis. In the molecular phylogenetic analysis the distribution of species of Rasbora largely falls into two areas, viz., the Indian region, and the Indo-Malayan region, divided by the western Shan Plateau and the Tenasserim Range. Morphological and molecular phylogenetic analyses of the Danioninae resulted in the discovery of seven new genera, five rasborins and two danionins, and one new danionin species.

Place, publisher, year, edition, pages
Stockholm: Department of Zoology, Stockholm University, 2010. 23 p.
Rasbora, Chedrina, Danionina, Danionini, Rasborini, Danioninae, Opsariichthyinae, Cyprinidae, Cypriniformes, phylogeny, systematics, Africa, Asia
Research subject
Systematic Zoology
urn:nbn:se:su:diva-43440 (URN)978-91-7447-165-6 (ISBN)
Public defence
2010-11-18, Lilla hörsalen, Naturhistoriska riksmuseet, Frescativägen 40, Stockholm, 10:00 (English)
At the time of the doctoral defense, the following papers were unpublished and had a status as follows: Paper 4: Submitted. Paper 5: Submitted. Paper 6: Submitted. Paper 7: Manuscript.Available from: 2010-10-27 Created: 2010-10-13 Last updated: 2010-10-15Bibliographically approved

Open Access in DiVA

No full text

Other links

Journal article

Search in DiVA

By author/editor
Liao, Te-Yu
By organisation
Department of Zoology
In the same journal
Natural Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 131 hits
ReferencesLink to record
Permanent link

Direct link