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Table 1 Coefficients of relatedness for a haplodiploid female for various female and male relatives

From: Theory of genomic imprinting conflict in social insects

   Full sibling Half sibling Own offspring Offspring of full sister Offspring of half sister Mother related by r qq , father unrelated
Females average 3/4 1/4 1/2 3/8 1/8 r qq /4
  patrigenic 1 0 1/2 1/2 0 0
  matrigenic 1/2 1/2 1/2 1/4 1/4 r qq /2
Males average - 1/2 1 3/4 1/4 r qq /2
  patrigenic - 0 1 1 0 0
  matrigenic - 1 1 1/2 1/2 r qq
  1. These are regression coefficients that do not include reproductive value differences between males and females. The last column is for relationships like cousins, with mothers related by r qq = 3/4 and fathers unrelated.