🧬 biology

Topography shapes the internal organisation of tiger home ranges in the plateau-gorge landscapes of central India

While topographic correction minimally altered the total estimated area of tiger home ranges in central India's plateau-gorge landscapes, terrain features critically shaped the internal organization of space use by concentrating core activities in rugged refuges and low-drainage landforms, particularly for females and during specific seasons.

Supratim Dutta, Ramesh Krishnamurthy2026-10-29
🧬 biology

Genome-Wide Identification, Expression Profiling, and Stress Responses of the Sugar Transporter Gene Family in Tomato (Solanum lycopersicum)

This study systematically characterizes the 18-member SlSTP gene family in tomato, revealing their phylogenetic classification, clade-specific expression patterns, and distinct roles in responding to nematode infection and various abiotic stresses, thereby identifying key candidates for enhancing sugar metabolism and stress tolerance.

Zijian Liu, Yafeng Gu, Xingyi Wang, Lingyan Shen, Yuxi Tang, Xin Li, Yongqiang Tian, Si Ma2026-10-29
🧬 biology

Community structure and hidden phylogenetic diversity of marine fungi in the tropical Indian and western Pacific Oceans

This study utilizes long-read 28S rRNA sequencing of 113 samples from the tropical Indian and western Pacific Oceans to reveal extensive hidden fungal diversity, including three novel candidate phyla, and demonstrates that marine fungal community structure is shaped by distinct vertical stratification and environmental drivers such as longitude, phosphate, and salinity.

Leilei Huang, Lijia Xu, Honglei Jiang, Guangjun Chai, Yuxiao Li, Sanqiang Gong, Kefu Yu2026-10-29
🧬 biology

Prevalence of Mycoplasma spp., Chlamydia spp., and Moraxella species in ocular samples from European bison (Bison bonasus) and their association with infectious keratoconjunctivitis

A study of 55 European bison in Poland found that while *Mycoplasma* spp., *M. bovoculi*, and *Chlamydia* spp. were frequently detected in ocular samples, their presence showed no significant association with the occurrence or severity of infectious keratoconjunctivitis, suggesting they may be part of the normal ocular microbiome rather than primary causative agents.

Katarzyna Filip-Hutsch, Michał Czopowicz, Anna Rodo, Michał Kopczyński, Rafał Sapierzyński, Wojciech Bielecki, Wanda Ole (…)2026-10-29
🧬 biology

A Multi-Epitope Vaccine Candidate with Predicted Broad Genotype Coverage Against Toxoplasma gondii Designed by Reverse Vaccinology and Immunoinformatics Strategies

This study utilizes reverse vaccinology and immunoinformatics to design and computationally validate MEV-2A, a novel multi-epitope vaccine candidate predicted to offer broad genotypic coverage against *Toxoplasma gondii* for One Health applications in livestock and human disease control.

Mostafa Zaher, Dalia M. El-Husseini2026-10-29
🧬 biology

The senescence-linked factor Chi3L1 contributes to mesenchymal stromal cells dysfunction promoting joint aging and osteoarthritis progression

This study identifies the senescence-linked factor CHI3L1 as a key driver of mesenchymal stromal cell dysfunction in aging joints, demonstrating that neutralizing CHI3L1 restores MSC regenerative capacity and effectively treats osteoarthritis by reversing age-related tissue decline.

Georges Maroun, Anne-Laure Bonnefont, Raissa Silva, Claudia Terreza, Carolina Pradenas, Catalina Asencio, Bruno Robert (…)2026-10-29
🧬 biology

Alpha- and Gamma-Synuclein Proteins Define Complementary Metabolic and Invasive Programs in Melanoma Development, Progression, and Prognosis

This study reveals that alpha- and gamma-synuclein define complementary, anti-correlated malignant states in melanoma, where alpha-synuclein drives a metabolic program linked to mitochondrial function and gamma-synuclein promotes an invasive program via integrin-FAK-MAPK signaling, with high gamma-synuclein expression serving as a prognostic biomarker for poor outcomes.

Mauricio Menacho Marquez, Florencia Malizia, Lucía Zanotti, Mirco Mian, Pablo Martínez Ponce, Macarena Mamberto, Aylén A (…)2026-10-29
🧬 biology

Different ways to disappear: transparency extends camouflage beyond background matching in heterogeneous environments

This study demonstrates that in the chameleon prawn (*Hippolyte varians*), solid-coloured individuals act as camouflage specialists with high survival on matching backgrounds, while transparent individuals function as generalists with consistent but trade-off-limited survival across heterogeneous environments, suggesting that environmental variability supports the coexistence of these alternative strategies.

Rafael Duarte, George Hancock, Gustavo Dias, Martin Stevens2026-10-29
🧬 biology

Bacterial Species Classification from Full-Plate Culture Images Using Deep Learning: A Comparative Study of CNNs and Vision Transformers

This study demonstrates that fine-tuned Vision Transformers (ViT-B/16) outperform traditional CNN architectures like ResNet50 and DenseNet121 in accurately classifying 19 bacterial species directly from full-plate culture images, achieving a mean accuracy of 99.05% under a unified experimental protocol.

Abdulsalam Abdulsattar Abdulazez, Hussein Salim Abed, Aythem Khairi Kareem, Mustafa Nadhim OWAID, Ahmed Adil Nafea2026-10-29