4 years ago

A scoring system for the evaluation of the mutated Crb1/rd8-derived retinal lesions in C57BL/6N mice [version 1; referees: 2 approved]

Heather Cater, Sara Wells, Danilo Concas
As part of the International Mouse Phenotyping Consortium (IMPC) programme, the MRC Harwell is conducting a large eye morphology phenotyping screen on genetically modified mice compared to the baseline phenotype observed in the background strain of C57BL/6NTac. The C57BL/6NTac strain is known to carry a spontaneous mutation in the Crb1 gene that causes retinal degeneration characterized by the presence of white spots (flecks) in the fundus. These flecks potentially represent a confounding factor, masking similar retinal phenotype abnormalities that may be detected in mutants. Therefore we investigated the frequency, position and extent of the flecks in a large population of C57BL/6NTac mice to provide the basis for evaluating the presence of flecks in mutant mice with the same genetic background. We found that in our facility males were more severely affected than females and that in both males and females the most common localisation of the flecks was in the inferior hemicycle of the fundus.

Publisher URL: https://f1000research.com/articles/6-404/v1

DOI: 10.12688/f1000research.11252.1

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