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Published yearly: 

4 Issues


ISSN: 2320-964X (Online) 

ISSN: 2320-7817  (Print)



Dr. Santosh Pawar 




Int. Journal of Life Sciences, 2018; 6(2): 457-461       |                 Available online, April 26, 2018

Distribution of constitutive heterochromatin in four species of genus Copera of family Platycnemididae (Odonata: Zygoptera) from India

Walia Gurinder Kaur and Devi Monika



Department of Zoology and Environmental Sciences, Punjabi University, Patiala- 147002. Punjab, India.



Received : 27.02.2018  |  Accepted : 02.04.2018   |     Published : 26.04.2018

C–heterochromatin distribution in four species of genus Copera of family Platycnemididae have been described. Copera marginipes and Copera vittata assamensis were collected from Bilaspur and Renuka lake (Sirmour, Himachal Pradesh), respectively, while Copera annulata and Copera vittata were collected from Nongkhyllem (Meghalaya), India. All the species possess n=13m as haploid chromosome number, which is the type number of the family and X0-XX sex determining mechanism. In all the species, autosomal bivalents show dark/light terminal C-bands on chiasmatic/nonchiasmatic ends, while m bivalent and X chromosome possess variation in distribution of C-heterochromatin. m bivalent is C-negative in Copera marginipes, while shows terminal C-bands in Copera annulata, Copera vittata  and Copera vittata assamensis. X chromosome possesses less amount of C-heterochromatin in Copera marginipes, Copera annulata and Copera vittata, whereas X chromosome is bipartite and entirely C-negative in Copera vittata assamensis. Chromosome complement of Copera vittata assamensis has been studied for the first time.


Key words-: Zygoptera, Platycnemididae, X chromosome, m chromosomes, C- heterocromatin.



Editor: Dr.Arvind Chavhan


Cite this article as:

Walia Gurinder Kaur and Devi Monika (2018) Distribution of constitutive heterochromatin in four species of genus Copera of family Platycnemididae (Odonata: Zygoptera) from India, Int. J. of. Life Sciences, Volume 6(2): 457-461. 



We thank the Department of Zoology and Environmental Sciences, Punjabi University, Patiala for providing all the lab facilities. 


Conflicts of interest: The authors stated that no conflicts of interest.



Copyright: © 2018 | Author(s), This is an open access article under the terms of the Creative Commons Attribution-Non-Commercial - No Derives License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.



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