TABLE 1

Summary statistics describing polymorphism in D. melanogaster Attacin genes

RegionLengthnSEmbedded Image Embedded Image Tajima's D4 NcEmbedded Image Embedded Image MK G-test
Attacin A promoter104312510.0162 (±0.007)0.0148 (±0.002)−0.5090.0486
Attacin A cdsa68211630.0315 (±0.013)0.0243 (±0.007)−1.0880.00120.08900.00800.026 (P = 0.87)
Attacin B promoter70012420.0199 (±0.008)0.0178 (±0.003)−0.5770.0076
Attacin B promoterb96511770.0272 (±0.011)0.0218 (±0.007)−1.0470.0003
Attacin B promoterc106410470.0156 (±0.006)0.0161 (±0.004)0.1720.0007
Attacin B cds75812240.0105 (±0.004)0.0066 (±0.003)−1.748*00.01970.00070.043 (P = 0.84)
Attacin C promoter196312640.0108 (±0.004)0.0117 (±0.001)0.4040.0126
Attacin C cds113412360.0105 (±0.004)0.0123 (±0.002)0.7850.01390.03850.00220.012 (P = 0.91)
  • Length is measured in base pairs after elimination of sites with alignment gaps, n is the number of lines, and S is the number of polymorphic nucleotides. Standard deviations of Embedded Image and Embedded Image are calculated assuming no recombination. Tajima's D (Tajima 1989) is the normalized difference between Embedded Image and Embedded Image , and 4Nc represents the per-base estimate of Hudson's recombination parameter (Hudson 1987). Embedded Image and Embedded Image are estimates of Embedded Image at silent and nonsynonymous positions, respectively. The MK G-test is described in McDonald and Kreitman (1991). *P < 0.05.

  • a The null allele of Attacin A (2CPA 43) was not used in the calculation of statistics in the Attacin A coding region.

  • b Line 2CPA 129 was excluded from this calculation of statistics summarizing variation in the Attacin B promoter.

  • c Lines 2CPA 129 and 2CPA 51 were excluded from this calculation of statistics summarizing variation in the Attacin B promoter.