Variation in Developmental Constraints in Sigmodon.

  title={Variation in Developmental Constraints in Sigmodon.},
  author={Miriam L Zelditch and Donald O Straney and Donald L. Swiderski and A Christopher Carmichael},
  journal={Evolution; international journal of organic evolution},
  volume={44 7},
Developmental constraints can be interpreted as factors of developmental origin responsible for covariation among measured variables. Several hypotheses have been proposed to link the possession of such constraints to subsequent evolution. Using confirmatory factor analysis, we compare developmental factors across selected taxa of cotton rats, genus Sigmodon. Three factors explain well the covariation among orofacial measurements: (1) responses to body size variation, (1) coordinated growth of… CONTINUE READING

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