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All Journal Biology, Medicine, & Natural Product Chemistry Bioscientist : Jurnal Ilmiah Biologi
Yunita Messe
Universitas Gadjah Mada
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Immunology & microbiology Medicine & Pharmacology Public Health Social Sciences

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Phylogenetic Investigation of Megapodius cumingii from Kabetan, Central Sulawesi, Based on the RDP1 Gene Akram; I Made Budiarsa; Yunita Messe
Bioscientist : Jurnal Ilmiah Biologi Vol. 14 No. 1 (2026): March
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v14i1.20024

Abstract

This study investigated the phylogenetic relationships of Megapodius cumingii using bioinformatic analyses. Blood samples were collected from the Kabetan Island population, followed by DNA extraction using the QIAamp DNA Blood Mini Kit, PCR amplification with Takara Ex Taq™ and RDP1.U1/RDP1.L1 primers, and sequencing with BigDye Terminator v3.1 ABI PRISM 3100. Chromatograms were converted into nucleotide sequences using BioEdit, and sequence similarity was assessed using NCBI BLAST. Multiple sequence alignment, model selection, nucleotide composition analysis, and phylogenetic reconstruction were performed in MEGA 12. The RDP1 gene of M. cumingii from Kabetan showed a consistent nucleotide composition with high GC content (55.27%) and high similarity to M. cumingii sequence KF834037.1, with substitutions dominated by transitions (A↔G, T↔C). Maximum likelihood analysis under the T92+G model (1.03) revealed three major clades, with clades 1 and 2 strongly supported (bootstrap = 100). The Kabetan population formed a monophyletic subclade with KF834037.1 (bootstrap = 86) and showed a very short branch length (~0.05 substitutions/site), indicating low intraspecific divergence, with Megapodius tenimberensis as the closest sister taxon. These findings support the utility of RDP1 for phylogenetic resolution within Megapodiidae and provide a preliminary basis for conservation planning and population connectivity assessment of M. cumingii in Wallacea.
Population Estimation and Habitat Characteristics of Anoa (Bubalus sp.) in Mount Kondoruang, Central Sulawesi Dirham Dirham; Ongky Ongky; Manap Trianto; Yunita Messe
Biology, Medicine, & Natural Product Chemistry Vol 15, No 1 (2026)
Publisher : Sunan Kalijaga State Islamic University & Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/biomedich.2026.151.731-738

Abstract

The anoa is a dwarf buffalo endemic to the Indonesian island of Sulawesi and several surrounding offshore islands. Despite its relatively small body size compared to other wild cattle, it is the largest wild terrestrial mammal native to Sulawesi. This study aims to estimate the population size and density of the anoa (Bubalus sp.) in Mount Kondoruang, Central Sulawesi, and to analyze the habitat characteristics that influence its distribution and occurrence. This project began with an information survey conducted from 8–15 June 2024 involving nature enthusiast groups (university student nature clubs) and local communities regarding the presence of the anoa on Mount Kondoruang. Data collection was carried out from 17–28 August 2024. Mount Kondoruang, also known as Kandela in Tojo Una-Una Regency, Central Sulawesi, Indonesia. Mount Kondoruang has an elevation of 2,870 meters above sea level and features diverse topography, ranging from hilly areas to mountainous terrain with slopes exceeding 15°, and is therefore designated as a Protected Forest area. The ecosystem types of Mount Kondoruang include savanna, lowland forest, lower montane forest, and upper montane forest. Mount Kondoruang remains an important habitat for the anoa, with individuals predominantly found in sub-montane forests. Habitat characteristics, particularly vegetation structure, elevation, temperature, and humidity, strongly influence its distribution. The limited population size and low juvenile detection indicate potential vulnerability, highlighting the need for continued monitoring and strengthened conservation efforts to ensure the species’ long-term survival.
Co-Authors Akram Dirham Dirham I Made Budiarsa Manap Trianto Ongky Ongky