African Journal of
Biotechnology

  • Abbreviation: Afr. J. Biotechnol.
  • Language: English
  • ISSN: 1684-5315
  • DOI: 10.5897/AJB
  • Start Year: 2002
  • Published Articles: 12487

Full Length Research Paper

Karyoevolutionary and karyosystematic considerations on Schizothorax curvifrons and Schizothorax niger (Teleostei: Cyprinidae): Important hill-stream food fishes of Kashmir Himalaya

Farooq Ahmad Ganai1*, Sabzar Ahmad Dar1, A.R. Yousuf1, N.K. Tripathi2 and Samee Wani1
1Limnology and Fisheries Laboratory, Centre of Research for Development (CORD), University of Kashmir, Srinagar, J and K, India. 2Animal Cytogenetics Laboratory, Department of Zoology, University of Jammu, India.  
Email: [email protected]

  •  Accepted: 17 February 2012
  •  Published: 31 July 2012

Abstract

Cytogenetic studies have helped in clarifying the problem of disagreement amongst taxonomists on the identity of a given species. Cytogenetic studies were performed on two fishes of the genus Schizothorax viz. Schizothorax curvifrons Heckel andSchizothorax niger Heckel (Cyprinidae: Schizothoracinae) obtained from Sindh Stream and Dal Lake Srinagar Kashmir, respectively. These fishes are considered to be the subspecies of the same species. The two species showed a diploid number of 98 in S. niger and 94 in S. curvifrons. The karyological data are analyzed in terms of the taxonomic aspects within this genus, and the validity of their existence as species chromosomally distinct from each other is emphasized.

 

Key words: Sindh stream, karyotype, cytotaxonomy, Kashmir Himalaya, chromosome.  

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This article is published under the terms of the Creative Commons Attribution License 4.0

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