Mar 24, 2026

Visit to the Animal Genomics Laboratory of the Department of Agriculture, Palermo University

I visited the Biotechnology Laboratory within the Department of Agriculture (SAAF) of the Palermo University on the 20 March 2026
The visit was guided by Prof Maria Teresa Sardina of the Department of Agriculture, Animal Genetics Section.

Professor Maria Teresa Sardina is a prominent researcher at the University of Palermo (Università degli Studi di Palermo), Italy, specializing in animal genetics and breeding. Her work primarily focuses on the genomic characterization, biodiversity, and conservation of local Mediterranean livestock. 

Laboratory Infrastructure and Technical Sections

The laboratory is designed as a multidisciplinary space, facilitating shared use between animal and crop science departments. It has been equipped with new technology over the last decade to support both research and student education

A. Molecular Biology and Instructional Space

  • Core Activities: The facility serves as the primary hub for DNA extraction from various types of samples such blood, salivary swabs etc.and quality control.
  • Pedagogy: A dedicated electrophoresis area is utilized to train students in essential practical skills, such as pipetting and sample preparation from diverse matrices (leaves, blood, and salivary swabs).
  • Support Systems: The lab includes a dedicated "refrigerant freezer area" for long-term sample preservation and high-speed centrifuges. Key instruments include spectrophotometers for quality control, centrifuges, electrophoresis areas, and a dedicated "machine house" on the first floor for high-throughput analysis.

Specialized Milk and Disease Analysis

A significant portion of the lab's work involves analysing livestock products and health, particularly for local breeders.

  • Milk Quality: The lab uses specialized machines (like the MilkoScan) to measure fat, protein, lactose, pH, and casein.
  • Somatic Cell Counting: A high-speed cell fluorimeter can process 200 samples per hour, which is critical for farmers to monitor animal health.
  • Disease Management: The lab tests for diseases such as Scrapie and Visna-Maedi in sheep. For viral mastitis, where antibiotics are ineffective, they use genotyping to select for resistant animals.
The Milkoscan
C. Advanced Genomics and Sequencing

·        Genetic Identification: The lab utilizes a Genetic Analyzer for Sanger sequencing, which is critical for routine tasks and identifying specific genetic markers

·        Capillary Efficiency: The equipment includes both 8-capillary and 24-capillary systems, allowing for the processing of up to 24 samples simultaneously.

·        High-Throughput Sequencing: The lab utilizes Sanger sequencing for routine tasks and the Illumina NextSeq 500 for full-genome sequencing, transcriptomics, ( and metagenomics.


Illumina NextSeq 500 

·        Proteomics: A specialized scanner is operational for proteomic analysis, although it is noted as a resource-intensive process in terms of both cost and time.


GE Typhoon FLA 9500 Biomolecular Imager,


·        Bioinformatics: Microbiome data is processed in-house using dedicated software, while complex "big genome" data is outsourced to specialized partners.


Genetic Analyser

Ion Torrent Personal Genome Machine (PGM), a next-generation sequencing (NGS) instrument.


3. Research Strategic Pillars: Genetic Conservation

A primary focus of the laboratory's current research agenda is the conservation of autochthonous Sicilian biodiversityThe department has shifted its focus from purely industrial production metrics toward the genetic preservation of breeds that are uniquely adapted to the regional environment.

·        Targeted Local Breeds: Active projects involve cattle (Cinizara, Modicana), sheep (Valle del Belice, Barbaresca, Derivata di Siria), and goats (Girgentana, Mascarona).


Distribution of the Local Breeds across Sicilia

·        Avian Genetics: Efforts are underway to officially recognize two local Sicilian chicken populations as distinct breeds

·        Environmental Adaptation: These breeds demonstrate superior survival and performance in the "hard areas" of the Sicilian interior, which is characterized by mountainous terrain.

·        Climate Change: Autochthonous biodiversity is prioritized for its ability to remain resilient in the face of shifting climatic conditions compared to modern, highly specialized industrial breeds.

·        Genetic Reservoir: Even if less productive in terms of milk or egg quantity, these animals carry essential genes that can be utilized to improve the robustness of non-modern breeds.

·        Selective Breeding for Health: Genotyping is employed to identify and select animals with natural resistance to viral pathologies, such as Visna-Maedi and Scrapie, where traditional antibiotics are ineffective.

·        Breed Certification: Researchers work with breeder associations to provide the morphological and functional data necessary to officially recognize these populations as distinct breeds.

4. Institutional and Financial Observations

  • Collaborative Maintenance: To ensure the longevity of high-cost equipment, the lab maintains active collaborations with other universities that outsource their sample analysis to this facility.
  • Funding Challenges: Unlike dedicated regional research centres, the University facility operates on a project-to-project funding model, requiring continuous grant acquisition from ministries and the EU to survive.
  • Evolution of the Department: Discussion with senior staff indicated a successful shift from a traditional "land and forestry" focus toward a modern, genetics-based approach to animal science.

Conclusion: Strategic Value of the Biotechnology Laboratory

The Biotechnology Laboratory has successfully transitioned from a traditional agricultural model to a high-tech genomic hub. By providing rapid milk diagnostics and advanced viral genotyping, the facility offers essential services that are otherwise cost-prohibitive for local farmers.

Central to its mission is the preservation of Sicilian autochthonous biodiversity. Using Sanger and Next-Generation Sequencing, researchers are proving that local breeds—such as the Cinizara cattle and Girgentana goats—possess critical genetic resilience to disease and climate change. Despite a project-dependent funding model, the laboratory’s commitment to student pedagogy and regional collaboration ensures it remains a vital asset for sustainable agriculture in Sicily.

 

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