Number of Lateral Plates in Sticklebacks

Description

Number of lateral plates (plates) in threespine sticklebacks (Gasterosteus aculeatus) with three different Ectodysplasin genotypes (mm, Mm, and MM).

Usage

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Format

A data frame with 344 observations on the following 2 variables.

genotype

a factor with levels mm, Mm, and MM

plates

number of plates

Source

Colosimo, P.F., C.L. Peichel, K. Nereng, B.K. Blackman, M.D. Shapiro, D. Schluter, and D.M. Kingsley. 2004. The genetic architecture of parallel armor plate reduction in threespine sticklebacks. PLoS Biology 2: 635-641. http://www.plosbiology.org/article/info:doi/10.1371/journal.pbio.0020109

References

Colosimo P.F., K.E. Hosemann, S. Balabhadra, G. Villarreal, M. Dickson, J. Grimwood, J Schmutz, R.M. Myers, D. Schluter, D.M. Kingsley. 2005. Widespread parallel evolution in sticklebacks by repeated fixation of ectodysplasin alleles. Science 307: 1928-33. http://www.sciencemag.org/cgi/content/full/307/5717/1928

Examples

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data(SticklebackPlates)

aggregate(plates ~ genotype, SticklebackPlates, favstats)

histogram(~plates | genotype, SticklebackPlates, 
  layout=c(1,3),
  n=15,
  xlab = "Number of Lateral Body Plates"
  )

densityplot(~plates | genotype, SticklebackPlates, 
  xlab = "Number of Lateral Body Plates",
  layout=c(1,3)
  )

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