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Karyological analysis of bitter gourd (Momordica charantia L., Cucurbitaceae) from Southeast Asian countries

Published online by Cambridge University Press:  09 July 2014

Nadia Kausar ,
Zubaida Yousaf ,
Afifa Younas ,
Hafiza Sadia Ahmed ,
Madiha Rashid ,
Ayesha Arif  and
Hafiza Ayesha Rehman
Nadia Kausar
Affiliation:
Department of Botany, Lahore College for Women University, Jail Road, Lahore, Pakistan
Zubaida Yousaf*
Affiliation:
Department of Botany, Lahore College for Women University, Jail Road, Lahore, Pakistan
Afifa Younas
Affiliation:
Department of Botany, Lahore College for Women University, Jail Road, Lahore, Pakistan
Hafiza Sadia Ahmed
Affiliation:
Department of Botany, Lahore College for Women University, Jail Road, Lahore, Pakistan
Madiha Rashid
Affiliation:
Department of Botany, Lahore College for Women University, Jail Road, Lahore, Pakistan
Ayesha Arif
Affiliation:
Department of Botany, Lahore College for Women University, Jail Road, Lahore, Pakistan
Hafiza Ayesha Rehman
Affiliation:
Department of Botany, Lahore College for Women University, Jail Road, Lahore, Pakistan
*
*Corresponding author. E-mail: z4zubaida@yahoo.com
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Abstract

Momordica charantia L. (Cucurbitaceae) is a commonly cultivated functional food plant. In the present study, karyological variation among 34 accessions of M. charantia originating from the Indian subcontinent (Bangladesh, India and Pakistan) and Thailand was evaluated. Ploidy levels ranging from diploid (2n= 22) to hexaploid (2n= 66) were observed. Hexaploidy in M. charantia is reported herein for the first time. Chromosome length ranged from 0.8 to 2.9 μm. The hexaploid accessions had submetacentric and subtelocentric chromosomes. All accessions harboured median and submedian chromosomes. Only one hexaploid accession (TOT1140) had chromosomes with subterminal centromeres. There was considerable variation in chromosome length and chromosome arm ratio.

Keywords

hexaploidyIndian subcontinentkaryotypepolyploidyThailand
Type
Short Communication
Information
Plant Genetic Resources , Volume 13 , Issue 2 , August 2015 , pp. 180 - 182
Copyright
Copyright © NIAB 2014 

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Supplementary material: File

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