Cuticular hydrocarbon as chemotaxonomic characters for fruit flies (diptera:tephritidae) from Sarawak

Khairunnisa', binti Mohd Zim (2015) Cuticular hydrocarbon as chemotaxonomic characters for fruit flies (diptera:tephritidae) from Sarawak. [E-LPTA]

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Abstract

The cuticular layer on insect’s body can be used as chemotaxonomic characters besides of its main function to minimize the loss of body water. Chemotaxonomic characterization is one of the ways to recognize the insects beside their morphology and molecular recognition. The identification of insect particularly at the genus and species level becomes a problem because of the morphological similarities. The main objective of this study was to determine qualitative and semi-quantitative n-alkanes composition in cuticular wax on from two species of Bacterocera (fruit flies) of several locations from Sarawak using Gas Chromatography – Flame Ionization Detector (GC-FID). This study found that hydrocarbon composition of these species affected by different locality with respects to their geographical distance between one location to others. Discriminant function analysis (DFA) showed that the entire sample studied can be separated into two different groups where the first group comprise of Limbang, Miri, Bintulu, Sibu and Sri Aman and while another group was Kapit. Cluster analysis (CA) showed that there are variations of hydrocarbon composition occurred between six sampling sites. The comparison study between two different species which are B. dorsalis and B. umbrosa showed n-alkanes composition cannot be used only to differentiate them.

Item Type: E-LPTA
Additional Information: Project Report (B.Sc.) -- Universiti Malaysia Sarawak, 2015.
Uncontrolled Keywords: Chemotaxonomy, fruit flies, cuticular hydrocarbon, gas chromatograph, unimas, university, universiti, Borneo, Malaysia, Sarawak, Kuching, Samarahan, ipta, education, undergraduate, research, Universiti Malaysia Sarawak
Subjects: Q Science > QR Microbiology
Divisions: Academic Faculties, Institutes and Centres > Faculty of Resource Science and Technology
Depositing User: Karen Kornalius
Date Deposited: 29 Jan 2016 01:43
Last Modified: 29 Jan 2016 01:43
URI: http://ir.unimas.my/id/eprint/10415

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