Summary and Conclusions
We have presented a novel method for statistical comparison of FA. The advantages of our method include:
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1.
the straightforward inclusion of three-dimensional data;
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2.
the lack of superimposition, so that the user does not need to arbitrarily select a fitting criterion;
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3.
identification of significant differences in FA by bootstrap confidence intervals;
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4.
presentation of local measures of FA, enabling identification of the affected anatomical structures and the proposal of testable developmental hypotheses.
The results of our analysis of FA in the Ts1Cje mouse provide preliminary support for the amplified DI hypothesis and provide the basis for a model of the interplay of dysmorphology and FA in aneuploidy that can be further explored in studies of development.
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Richtsmeier, J.T., Cole, T.M., Lele, S.R. (2005). An Invariant Approach to the Study of Fluctuating Asymmetry: Developmental Instability in a Mouse Model for Down Syndrome. In: Slice, D.E. (eds) Modern Morphometrics in Physical Anthropology. Developments in Primatology: Progress and Prospects. Springer, Boston, MA. https://doi.org/10.1007/0-387-27614-9_8
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