Karyotype variability of the genus Colocasia (Araceae) of Assam, North East India

Authors

DOI:

https://doi.org/10.36253/caryologia-3014

Keywords:

asymmetry indices, chromosome number, Colocasia, karyotype

Abstract

Cytological study in four species of Colocasia (Araceae) of Assam showed a variation of chromosome numbers. Basic chromosome number of the species was reported as n= 14. Dominance of metacentric chromosomes in all the four species and symmetric karyotypes indicate the primitive evolutionary status of the species. Analysis of chromosome asymmetry indices indicate the karyotype homogeneity. Deviation of basic chromosome numbers in Colocasia manii Hook. f. and Colocasia fallax Schott. reflects the possible existence of aneuploidy. Presence of secondary constriction indicates the chromosomal plasticity.

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Author Biographies

Sourav Bhattacharjee, Department of Botany, Cotton University, Assam-781001, India

Research scholar,  Department of Botany, Cotton University, Assam-781001, India

Manabendra Nath, Department of Botany, Gauhati University, Assam- 781014, India

Research scholar, department of Botany, Gauhati University

Werina Ingtipi, Department of Botany, Cotton University, Assam-781001, India

Faculty Department of Botany Cotton University

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Published

2025-07-15

How to Cite

Bhattacharjee, S., Sheikh, A., Nath, M., Ingtipi, W., & Rajkumari, J. D. (2025). Karyotype variability of the genus Colocasia (Araceae) of Assam, North East India. Caryologia, 77(4), 25–31. https://doi.org/10.36253/caryologia-3014

Issue

Vol. 77 No. 4 (2024)

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Copyright (c) 2024 Jinu Devi Rajkumari, Sourav Bhattacharjee, Afsana Sheikh, Manabendra Nath, Werina Ingtipi

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