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. 2019 Mar 15;9(5):1613–1622. doi: 10.1534/g3.118.200847

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Copyright © 2019 Shorter et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Diallel crossing scheme and weaned pup distribution. The number of litters observed per cross is given by the integers, with the largest sample sizes, along the diagonal, corresponding to the production of inbred parental strains. Column and row sums are given along the bottom row and rightmost column, respectively. A total of 4,448 litters were evaluated for this analysis, resulting in a total of 24,782 weaned pups. The shading within each box corresponds to the average number of weaned pups per litter in each cross, with averages ranging from 3.6 to 9.1 pups per litter. Litters for which no pups survived until weaning were not included in our analysis. The symbol “×” is used to indicate incompatible crosses that do not produce any litters.