Cytological study on Dumortiera hirsuta (Sw.) Nees (Hepaticae)

Loo, M.J and Monica Suleiman and Mariam Abd. Latip (2005) Cytological study on Dumortiera hirsuta (Sw.) Nees (Hepaticae). Sepilok Bulletin, 2. pp. 9-16. ISSN 1823-0067

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Abstract

The cytological approach was used in this study on Dumortiera hirsuta (Sw.) Nees (Class Hepaticae) because its cytoforms are complex and morphologically not distinct. Chromosome numbers, ploidy levels and lengths of chromosomes of D. hirsuta were determined. It was observed that there were three levels of ploidy in D. hirsuta: monoploid with chromosome numbers of n = 9, diploid with n =18, and triploid with n = 27. The mean length of chromosomes in monoploid cytoform was 1.20 pm and longer than that of the diploid cytoform (1.12 pm) and triploid cytoform (1.10 pm). The karyological approach had successfully differentiated cytoforms at the cellular level.

Item Type: Article
Uncontrolled Keywords: Adaptation , Chromosomes , Cytoforms , Dumortiera hirsuta , Poly ploidy
Subjects: Q Science > QK Botany > QK1-989 Botany
S Agriculture > SB Plant culture > SB1-1110 Plant culture
Divisions: INSTITUTE > Institute for Tropical Biology and Conservation
Depositing User: SAFRUDIN BIN DARUN -
Date Deposited: 24 Mar 2022 07:59
Last Modified: 24 Mar 2022 07:59
URI: https://eprints.ums.edu.my/id/eprint/32000

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