Recent common ancestors of all present-day individuals

  title={Recent common ancestors of all present-day individuals},
  author={Joseph T. Chang},
  journal={Advances in Applied Probability},
  pages={1002 - 1026}
  • Joseph T. Chang
  • Published 1 December 1999
  • Biology
  • Advances in Applied Probability
Previous study of the time to a common ancestor of all present-day individuals has focused on models in which each individual has just one parent in the previous generation. For example, ‘mitochondrial Eve’ is the most recent common ancestor (MRCA) when ancestry is defined only through maternal lines. In the standard Wright-Fisher model with population size n, the expected number of generations to the MRCA is about 2n, and the standard deviation of this time is also of order n. Here we study a… 

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