Sains Malaysiana 52(1)(2023): 17-33

http://doi.org/10.17576/jsm-2023-5201-02

 

A Review on Next-Generation Wildlife Monitoring using Environmental DNA (eDNA) Detection and Next-Generation Sequencing in Malaysia

(Kajian Pemantauan Hidupan Liar Generasi Masa Hadapan menggunakan Pengesanan DNA (eDNA) Persekitaran dan Penjujukan Generasi Masa Hadapan di Malaysia)

 

NURSYUHADA OTHMAN1, KAVIARASU MUNIAN1,2, HIDAYAH HARIS1, FARAH FARHANA RAMLI1, NUR HARTINI SARIYATI1, MOHD FAUDZIR NAJMUDDIN1 & MUHAMMAD ABU BAKAR ABDUL-LATIFF1,*

 

1Environmental Management and Conservation Research Unit (eNCORe), Faculty of Applied Sciences and Technology, Universiti Tun Hussein Onn Malaysia (Pagoh Campus), 84600 Muar, Johor Darul Takzim, Malaysia

2Zoology Branch, Forest Biodiversity Division, Forest Research Institute Malaysia, 52109 Kepong, Selangor Darul Ehsan, Malaysia

 

Diserahkan: 14 Februari 2022/Diterima: 15 Oktober 2022

 

Abstract

The use of environmental DNA (eDNA) as the genetic tool to monitor biodiversity has been increasing across the world, including Malaysia. Over a decade, the technique has become widely used in wildlife conservation with the technologies called next-generation sequencing (NGS). Unfortunately, as one of the top megadiverse countries, Malaysia is still behind in this field since eDNA methods outperform traditional surveys. Hence, in this study, we analyzed the paper related to eDNA studies in Malaysia, which focused on wildlife monitoring. We conducted a systematic bibliographic search and quantitative review of studies published before June 2021 from Google Scholar and Scopus database. Forty published eDNA studies were found, and each paper was classified based on five themes (species identification, diet assessment, health monitoring, resolve taxonomic, whole-genome sequencing) according to the study analysis. This study aims to identify gaps in eDNA in Malaysia, which can later be useful for future conservation actions and development by applying technology in wildlife monitoring.

 

Keywords: Biodiversity; conservation; environmental DNA; eDNA; next-generation sequencing; NGS

 

Abstrak

Penggunaan DNA persekitaran (eDNA) sebagai alat genetik untuk memantau kepelbagaian biologi telah pun meningkat di seluruh dunia termasuk Malaysia. Setelah sedekad, teknik ini telah digunakan secara meluas dalam pemuliharaan hidupan liar bersama dengan teknologi yang dikenali sebagai penjujukan generasi masa hadapan (NGS). Walau bagaimanapun, Malaysia yang merupakan salah sebuah negara di dunia yang mempunyai kekayaan kepelbagaian biologi yang tinggi masih lagi ketinggalan dalam bidang ini kerana kaedah eDNA sebenarnya mampu mengatasi kaedah tradisi. Dalam ulasan ini, kami telah menganalisis kajian yang berkaitan dengan eDNA di Malaysia yang memberi tumpuan kepada pemantauan hidupan liar. Kami telah menjalankan pencarian secara sistematik biblografi dan juga secara kuantitatif berdasarkan kajian lepas yang telah diterbitkan sehingga Jun 2021 menggunakan Google Scholar dan pangkalan data Scopus. Terdapat 40 kajian eDNA yang telah diterbitkan dan dikelaskan berdasarkan lima tema (pengenalan spesies, penilaian pemakanan, pemantauan kesihatan, penyelesaian taksonomi dan penjujukan keseluruhan genom) mengikut analisis kajian. Tujuan ulasan ini adalah untuk mengenal pasti jurang kajian eDNA di Malaysia yang dapat membantu untuk aktiviti pemuliharaan dan pembangunan masa hadapan dengan menggunakan teknologi yang terkini dalam pemantauan hidupan liar.

 

Kata kunci: DNA persekitaran; eDNA; kepelbagaian biologi; konservasi; NGS; penjujukan generasi masa hadapan

 

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*Pengarang untuk surat-menyurat; email: latiff@uthm.edu.my

   

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