TABLE 9

QTL exhibiting significant epistasis for life span

CrossaM × MbPcM × M × DdPcM × M × SePc
RI × Oregon48D × 50D*
50D × 68B*
50D × 76B*
RI × 2b38E × 76B**
48D × 50D*48D × 50D*
48D × 76B*48D × 76B**48D × 76B*
50D × 68B**
50D × 76B***50D × 76B**
  • a RI lines crossed to Oregon or 2b strain.

  • b Markers closest to significant QTL peaks that interact to affect life span.

  • c Significance of interaction based on F statistics (d.f. = 1317 for each test), where P = *, 0.01 < P < 0.05; **, 0.001 < P < 0.01; and ***, 0.0001 < P < 0.001 values. Initial α value for the Bonferroni correction was 0.005 for each cross.

  • d Markers involved in significant marker-by-marker-by-density interactions.

  • e Markers involved in significant marker-by-marker-by-sex interactions. Results in italics indicate significant effects after application of the sequential Bonferroni procedure to protect against type I error.