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Article Number - F02979C41237


Vol.4(7), pp. 607-610 , July 2005
DOI: 10.5897/AJB2005.000-3137
ISSN: 1684-5315
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Full Length Research Paper

Chromosome number and cytomorphological characterization of a polyploid Abrus


Ikechukwu O. Agbagwa* and Bosa E. Okoli




Department of Plant Science and Biotechnology, Faculty of Science, University of Port Harcourt, P.M.B. 5323, Port Harcourt, Rivers State, Nigeria.


Email: ikejiro2002@yahoo.com






 Accepted: 16 March 2005  Published: 31 July 2005

Copyright © 2005 Author(s) retain the copyright of this article.
This article is published under the terms of the Creative Commons Attribution License 4.0


Chromosome counts from natural populations of Abrus pulchellus in Nigeria were carried out. Tetraploid (2n = 44) chromosome number was constant in all the samples investigated. The 44 chromosomes fall into three cytomorphological categories: eight metacentric and eight sub-metacentric pairs, and six acrocentric pairs. The chromosomes are relatively small in length ranging from 0.5 to 1.4μm. The polyploid (tetraploid) cytotype is reported for the first time for this taxon.

 

Key words: Abrus pulchellus, acrocentric, chromosome counts, metacentric, polyploid, sub-metacentric.


APA Agbagwa, I. O., & Okoli, B. E. (2005). Chromosome number and cytomorphological characterization of a polyploid Abrus. African Journal of Biotechnology , 4(7), 607-610.
Chicago Ikechukwu O. Agbagwa and Bosa E. Okoli. "Chromosome number and cytomorphological characterization of a polyploid Abrus." African Journal of Biotechnology 4, no. 7 (2005): 607-610.
MLA Ikechukwu O. Agbagwa and Bosa E. Okoli. "Chromosome number and cytomorphological characterization of a polyploid Abrus." African Journal of Biotechnology 4.7 (2005): 607-610.
   
DOI 10.5897/AJB2005.000-3137
URL http://academicjournals.org/journal/AJB/article-abstract/F02979C41237

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