Identification of Putative Sex Chromosomes in the Blue Tilapia, Oreochromis Aureus, through Synaptonemal Complex and FISH Analysis

Campos-Ramos, R. and Harvey, S.C. and Masabanda, J.S. and Carrasco, L.A. and Griffin, D.K. and McAndrew, B.J. and Bromage, N.R. and Penman, D.J. (2001) Identification of Putative Sex Chromosomes in the Blue Tilapia, Oreochromis Aureus, through Synaptonemal Complex and FISH Analysis. Genetica, 111 (1-3). pp. 143-153. ISSN 0016-6707. (The full text of this publication is not available from this repository)

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Official URL
http://dx.doi.org/10.1023/A:1013707818534

Abstract

Sex determination in the blue tilapia, Oreochromis aureus, is primarily a ZW female-ZZ male system. Here, by analysis of the pachytene meiotic chromosomes of O. aureus, we demonstrate the presence of two distinct regions of restricted pairing present only in heterogametic fish. The first, a subterminal region of the largest bivalent is located near to the region of unpairing found in the closely related species O. niloticus, while the second is in a small bivalent, most of which was unpaired. These results suggest that O. aureus has two separate pairs of sex chromosomes.

Item Type: Article
Additional information: 11841163 0016-6707
Uncontrolled keywords: Animals Female In Situ Hybridization, Fluorescence Male Polymerase Chain Reaction Sex Chromosomes Synaptonemal Complex Tilapia
Subjects: Q Science
Divisions: Faculties > Science Technology and Medical Studies > School of Biosciences
Depositing User: Darren Griffin
Date Deposited: 20 Nov 2008 21:04
Last Modified: 03 Mar 2009 12:23
Resource URI: http://kar.kent.ac.uk/id/eprint/12467 (The current URI for this page, for reference purposes)
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