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Establishing the Hybrid Rat Diversity Program: A Resource for Dissecting Complex Traits

Dwinell et al., Mammalian Genome. 2025.

https://pubmed.ncbi.nlm.nih.gov/39907792

Rat models have been extensively used for studying human complex disease mechanisms, behavioral phenotypes, and environmental factors and for discovering and developing drugs. Systems genetics approaches have been used to study the effects of both genetic variation and environmental factors. This approach recognizes the complexity of common disorders and uses intermediate phenotypes to find relationships between genetic variation and clinical traits. This article describes the Hybrid Rat Diversity Program (HDRP) at the Medical College of Wisconsin, which involves 96 inbred rat strains and aims to provide a renewable and reusable resource in terms of the HRDP panel of inbred rat strains, the genomic data derived from the HRDP strains, and banked resources available for additional studies. Supported by ORIP (R24OD024617) and NHLBI.

3-D Printed Customizable Vitrification Devices for Preservation of Genetic Resources of Aquatic Species

Tiersch et al., Aquacultural Engineering. 2020.

https://www.sciencedirect.com/science/article/pii/S0144860920300406

Sperm vitrification as an alternative approach to conventional cryopreservation allows quick and low-cost sample preservation and is suitable for small-bodied aquatic species with miniscule testis, fieldwork at remote locations, and small-scale freezing for research purposes. Tiersch et al. report the developing of operational prototypes of 3-dimensional (3-D) printed vitrification devices. This study demonstrated the feasibility of developing standardized low-cost devices fabricated by 3-D printing with functions including vitrification, volume control, labeling, protection, and storage. These prototypes can be further developed to assist development of germplasm repositories to protect the genetic resources of aquatic species by breeders, hatcheries, aquariums, and researchers. Supported by ORIP (R24OD010441).