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All Journal HAYATI Journal of Biosciences Jurnal Penelitian Pendidikan IPA (JPPIPA) Heca Journal of Applied Sciences Asian Journal of Environmental Research
Mamahit, Juliet Merry Eva
Department Of Plant Protection, Faculty Of Agriculture, Sam Ratulangi University
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Engineering Health Professions Materials Science & Nanotechnology Medicine & Pharmacology Physics

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A Review on Mitochondrial Genome of Ants (Hymenoptera: Formicidae) Kolondam, Beivy Jonathan; Tallei, Trina Ekawati; Koneri, Roni; Abas, Abdul Hawil; Mamahit, Juliet Merry Eva
Heca Journal of Applied Sciences Vol. 1 No. 2 (2023): October 2023
Publisher : Heca Sentra Analitika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.60084/hjas.v1i2.74

Abstract

Ants, which are members of the Formicidae family, have been the subject of considerable scientific scrutiny due to their remarkable diversity and ecological importance. Extensive research endeavors have been directed towards understanding the complex behaviors and ecological responsibilities exhibited by these organisms. The advent of cutting-edge sequencing technology in recent times has sparked a significant breakthrough in the deciphering of mitochondrial genomes in many animals, including ants. The objective of this review paper is to provide an informative summary of the mitochondrial DNA of ants. Exploring the intricate structural aspects, we investigate the genetic diversity that exists in the mitochondrial genomes of ants. The investigation of evolutionary processes provides insight into the complex alterations that have shaped genomes throughout time. The broader ramifications of these genetic differences for the fields of ant biology and conservation are thoroughly considered. An examination is conducted on the structural characteristics, genetic variations, and evolutionary features of ant mitochondrial genomes, along with an investigation into their physiological impacts. As the molecular complexities of ant mitochondrial genomes are revealed, there is an opportunity to further explore their realm, leading to a more comprehensive comprehension of these extraordinary organisms.
Integrated DNA Barcoding and Morphometric Characterization of Palm Weevils (Rhynchophorus spp.) in North Sulawesi Balansa, Endrile Golmen; Salaki, Christina Leta; Tarore, Dantje; Mamahit, Juliet Merry Eva; Kolondam, Beivy Jonathan; Tallei, Trina Ekawati
HAYATI Journal of Biosciences Vol. 32 No. 5 (2025): September 2025
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.32.5.1260-1272

Abstract

Palm weevils (Rhynchophorus spp.) are significant pests of sago palms worldwide. Yet, the taxonomy and evolutionary lineage of these species in North Sulawesi remain unclear, likely due to geographic isolation driving genetic variation and species differentiation. This study aimed to investigate the genetic diversity and morphological differentiation of Rhynchophorus across distinct geographic regions in North Sulawesi using an integrative approach combining DNA barcoding and morphometric analysis. Morphometric traits from palm weevil specimens collected in Sangihe Island, Minahasa, and Bolaang Mongondow were measured and statistically analyzed using one-way ANOVA, MANOVA, principal component analysis (PCA), and linear discriminant analysis (LDA) to assess interpopulation morphological differences. For molecular identification, the cytochrome oxidase I (COI) gene was amplified and sequenced. Phylogenetic relationships were inferred using the maximum likelihood method, and a DNA barcode gap analysis was conducted to evaluate the separation between intra- and interspecific genetic distances. Morphometric analysis revealed significant size variations among the specimens, particularly in rostrum dimensions, with the EBBM (Bolaang Mongondow) group showing the highest values. COI-gene-based identification confirmed that all specimens were of R. vulneratus. However, phylogenetic analysis showed EBMin (Minahasa) and EBBM forming a distinct subgroup, while EBMan, EBSTS, EBTam, and EBSTU (all from Sangihe Island) clustered separately. Barcode gap analysis demonstrated a clear distinction between intra- and interspecific divergence, validating COI as a reliable marker for species delimitation. This study concludes that integrating morphometric and genetic analyses reveals geographic structuring within R. vulneratus, highlighting the effectiveness of combined methods for accurate identification and population differentiation.
Comparative Study of DNA Barcoding and Mini-Barcoding based on COI Gene for Species Identification and Phylogeny of Formicidae Family (Insecta: Hymenoptera) Kolondam, Beivy Jonathan; Tallei, Trina Ekawati; Koneri, Roni; Mamahit, Juliet Merry Eva
HAYATI Journal of Biosciences Vol. 32 No. 6 (2025): November 2025
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.32.6.1626-1642

Abstract

DNA barcoding and mini-barcoding are widely used to study insect biodiversity, including ants (Hymenoptera: Formicidae). This study evaluated the effectiveness of both approaches for species identification and phylogenetic inference in ants, with particular attention to the performance of universal primers during PCR amplification. Full-length DNA barcode (658 bp) and mini-barcode (127 bp) regions of the mitochondrial cytochrome c oxidase subunit I (COI) gene were retrieved from GenBank, aligned, and analysed with maximum-likelihood phylogenetics (1,000 bootstrap replicates) under the Tamura-Nei model. The universal DNA barcoding primers (Folmer's LCO1490 and HCO2198) showed generally good alignment with ant COI sequences. However, multiple nucleotide mismatches were observed in LCO1490, including one critical mismatch located within the GC clamp region. In contrast, the universal mini-barcoding primers (UniMinibarF1 and UniMinibarR1) showed critical mismatches at their 3′ ends, likely reducing PCR efficiency. Despite limitations associated with primer mismatches, both DNA barcoding and mini-barcoding are reliable for species identification. DNA barcoding and mini barcoding are both capable of distinguishing ants at the species level, regardless of the length of the sequences being compared. The same sequences have also been used for phylogenetic analysis, showing good ability to distinguish ant species based on phylogenetic tree reconstruction. The comparison of DNA barcoding and mini-barcoding in ants showed that longer sequences offered superior resolution for species identification and phylogenetic reconstruction. These findings underscore the need for primer optimisation in ant-specific applications and highlight the utility of both barcoding strategies for taxonomic and evolutionary studies.
Potential of Pangi Leaf Extract For Papaya Mealybug Control (Paracoccus marginatus) Mamahit, Juliet Merry Eva; Montong, Vivi B.; Pakasi, Sandra E.
Jurnal Penelitian Pendidikan IPA Vol 10 No 9 (2024): September
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i9.9149

Abstract

The use of smer plant extracts is one alternative in environmentally friendly pest control. This research generally aims to obtain a technology for controlling Paracoccus marginatus mealybug pests that is environmentally friendly and easily applied by farmers. This study aims to determine the formulation of vegetable insecticide extract of pangi leaves to control papaya mealybug P. marginatus. This research was conducted at the Laboratory of Plant Pests and Diseases, Faculty of Agriculture, Sam Ratulangi University Manado. This research method used consisted of five treatments of pangi leaf extract dosage, namely: 5%, 10%, 20%, 40% and control. Each treatment was tested on pest nymphs. P. marginatus. And each treatment was repeated 5 times. The results of the study showed that 40% pangi leaf extract had the highest percentage of daily mortality at 24% and 48%. The higher the concentration of pangi leaf extract formulation, the higher the killing power on mealybug P. marginatus.
Houseflies (Musca spp.) in Pig Farming Systems: Implications for Health and Environmental Management in Tropical Indonesia Manitik, Quinthia Amanda; Nangoy, Meis Jacinta; Kaunang, Wulan Pingkan Julia; Onibala, Jane Silvana Iriane; Mamahit, Juliet Merry Eva; Tahulending, Jane Maria Fransiska
Asian Journal of Environmental Research Vol. 3 No. 1 (2026): Available online
Publisher : CV. Science Tech Group

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69930/ajer.v3i1.691

Abstract

Houseflies (Musca spp.) are common synanthropic insects in pig farming systems and are widely recognized for their potential role in the mechanical transmission of pathogens, particularly in tropical endemic settings. In Indonesia, pig farming is frequently conducted in close proximity to residential areas, where inadequate environmental management may increase risks to animal and public health. This study aimed to examine the presence and potential role of houseflies in pig farming systems and to assess their implications for health and environmental management in tropical Indonesia. A cross-sectional observational study was conducted in selected pig farming areas. Houseflies were collected using standardized trapping techniques from pig housing, waste accumulation sites, and surrounding environments. Microbiological analyses were performed to detect pathogenic bacteria associated with gastrointestinal and zoonotic diseases, while environmental management practices, including waste handling, sanitation, and biosecurity measures, were assessed through structured observations and interviews. The findings revealed high housefly density in areas characterized by poor waste management and suboptimal sanitation conditions. Pathogenic bacteria of public health significance were identified on the external surfaces of collected houseflies, indicating their potential role as mechanical vectors. Farms implementing better environmental management practices showed lower fly abundance and reduced levels of microbial contamination. These results underscore the importance of integrated health and environmental management in pig farming systems. Improving waste management, sanitation, and fly control measures is essential to reduce disease transmission risks and to support sustainable and health-oriented livestock production in tropical regions of Indonesia.
Co-Authors Abas, Abdul Hawil Angelina Stevany Regina Masengi Balansa, Endrile Golmen BEIVY JONATHAN KOLONDAM Daniel Febrian Sengkey Dantje Tarore Edward Nangoy, Edward Jimmy Posangi Mambo, Christi Diana Manitik, Quinthia Amanda Marthen Theogives Lasut, Marthen Theogives Montong, Vivi B. Nangoy, Meis Onibala, Jane Silvana Iriane Pertiwi, Junita Maja Roni Koneri Salaki, Christina Leta Sandra E. Pakasi Tahulending, Jane Maria Fransiska TRINA EKAWATI TALLEI Warouw, Finny Wulan Pingkan Julia Kaunang Yulianty Sanggelorang