Non-random mating

NON-RANDOM MATING

Mating system

  • Nonrandom mating occurs when the probability that two individuals in a population will mate is not the same for all possible pairs of individuals.
  • There are two types of non-random mating

Assortative mating

  • If mated pairs are of the same phenotype more than would occur by chance this is called assortative mating.
  • Mates are genetically similar Example: inbreeding – mating between close relatives includes self-pollination.

Disassortative mating

  • Disassortative mating is mating of individuals of different phenotypes.
  • Mates are genetically different.
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Last modified: Saturday, 23 July 2011, 7:27 AM