Biology, Medicine, & Natural Product Chemistry
Vol 15, No 1 (2026)

A Study of the NGF Gene Intron in the Philippine Scrubfowl (Megapodius cumingii) from Kabetan Island, Central Sulawesi

Wayan Windyawati (Tadulako University)
I Made Budiarsa (Department of Biology Education, Faculty of Teacher Training and Education, Tadulako University.)
Zulaikhah Dwi Jayanti (Tadulako University)
Manap Trianto (Tadulako University)
Abdul Ashari (Tadulako University)
I Nengah Kundera (Tadulako University)



Article Info

Publish Date
10 Jul 2026

Abstract

The Philippine scrubfowl (Megapodius cumingii) is a bird species that utilizes environmental heat to incubate its eggs and has a wide geographic distribution across various habitats, including coastal forests, coastal areas, and small islands. This study aimed to describe and analyze the genetic diversity and phylogenetic relationships of Megapodius cumingii based on the Nerve Growth Factor (NGF) gene. Genomic DNA was isolated from blood samples of M. cumingii using the gSYNC™ DNA Extraction Kit (Geneaid) protocol and subsequently amplified using the Polymerase Chain Reaction (PCR) method with the forward primer AllNGF5' and reverse primer AllNGF3'. Sequence data were analyzed using BLAST to determine their similarity to reference sequences available in GenBank. Genetic diversity was assessed using DnaSP v6.12.03, while phylogenetic reconstruction was performed using MEGA 11 based on the Neighbor-Joining (NJ) method with the Kimura 2-Parameter model. The results showed that the nucleotide composition consisted of Adenine (A) 29.3%, Thymine (T) 19.8%, Cytosine (C) 26.9%, and Guanine (G) 24.1%, with a G+C content (51.0%) slightly higher than the A+T content (49.0%). Genetic diversity analysis revealed a haplotype diversity value of 0.533 ± 0.172 and a nucleotide diversity value of 0.00145 ± 0.00047. Phylogenetic reconstruction produced a consistent tree topology across two outgroup models, with all M. cumingii samples forming a single clade supported by high bootstrap values (99–100%). The phylogenetic relationships among M. cumingii samples from Kabetan Island, Tolitoli, were very close, as indicated by genetic distance values ranging from 0.000 to 0.003.

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Journal Info

Abbrev

BIOMEDICH

Publisher

Subject

Biochemistry, Genetics & Molecular Biology Medicine & Pharmacology Public Health

Description

BIOLOGY, MEDICINE, & NATURAL PRODUCT CHEMISTRY, this journal is published to attract and disseminate innovative and expert findings in the fields of plant, animal, and microorganism secondary metabolite, and also the effect of natural product on biological system as a reference source for ...