Malaysian Applied Biology Journal

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48_03_19

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Malays. Appl. Biol. (2019) 48(3): 167–179

 

GENETIC DIVERSITY OF THE CAVE ROOSTING DUSKY

FRUIT BAT, Penthetor lucasi FROM SARAWAK


YUVARAJAN MANIVANNAN1*, MOHD RIDWAN ABD RAHMAN2, ROBERTA CHAYA TAWIE TINGGA2

and FAISAL ALI ANWARALI KHAN1*


1Faculty of Resource Science and Technology, Universiti Malaysia Sarawak,

94300 Kota Samarahan, Sarawak

2Centre for Pre-University Studies, Universiti Malaysia Sarawak,

94300 Kota Samarahan, Sarawak

*E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it ; This e-mail address is being protected from spambots. You need JavaScript enabled to view it


Accepted 20 December 2018, Published online 30 June 2019


ABSTRACT

Previous studies have revealed a high genetic divergence in Penthetor lucasi population in Sarawak, indicating it may consist of multiple genetic lineages. However, these studies are not accompanied by morphological data from the studied population suggesting this may be an effect of isolation by distance, especially with small sampling coverage. Here, we provide information based on D-loop sequence analysis from 32 individuals of Penthetor lucasi collected from four different regions in Sarawak. Our results revealed a high haplotype diversity and low nucleotide diversity, suggesting that these populations are possibly recovering from a recent geological and climatic event. However, neutrality test and mismatch distributions showed longterm population stability with no population subdivision observed among the studied populations. The moderate to high level of gene flow found in this study indicates that Penthetor lucasi population is likely panmictic. Meanwhile, the low level of genetic divergence value among and within populations could account for the absence of species complexity in this study. Our result highlighted the importance of sampling coverage in proper assessment of species diversity especially in species with wide distribution.


Key words: Complexity, D-Loop, divergence, gene flow, panmictic

 

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