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The loss of photoreceptors is a major course for visual impairment and blindness with no cure currently established. Photoreceptor replacement into mouse models of retinal degeneration is currently investigated as a potential future therapy. To evaluate visual function in mice before and after treatment two vision-based behavioral tests (optomotor tracking and the light/dark box) were investigated including their feasibility to distinguish between rod and cone photoreceptor function. Both methods turned out to be an objective and reliable readout for vision ability in wildtype mice and mice with vision impairment due to retinal degeneration. The capability of the methods to assess slight vision improvements have to be further evaluated.
Therefore options for improvement of the established tests and an idea for a new test paradigm have been introduced.
Genetic sex determination of ancient DNA samples based on one simple mathematical algorithm, which considers the number of mapped reads on autosomal, X, and Y chromosomes. The algorithm is implemented in one command line tool - SiD. SiD is used to deter-mine the sex of 16 samples, which have been shotgun sequenced and captured with a 1240k panel.