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Table 2 Evolutionary correlates of gene constellationsa.

From: Functional and evolutionary correlates of gene constellations in the Drosophila melanogaster genome that deviate from the stereotypical gene architecture

    African population American population    
Group CAI Ka/Ks θW θπ Tajima's D θW θπ Tajima's D FST Expr-Divc QST
Genes on the autosomes
SG 0.233** (± 0.039) 0.092 (± 0.109) 0.008 (± 0.002) 0.006 (± 0.001) -1.023 (± 0.363) 0.003 (± 0.001) 0.004 (± 0.001) 0.199 (± 0.689) 0.125 (± 0.097) 2.7% 0.427 (± 0.296)
5PP 0.252** (± 0.039) 0.073* (± 0.079) 0.007 (± 0.003) 0.005 (± 0.002) -1.058 (± 0.488) 0.003 (± 0.001) 0.003 (± 0.002) 0.514 (± 0.807) 0.153 (± 0.103) 3.5% 0.362 (± 0.272)
EE 0.250* (± 0.037) 0.075* (± 0.100) 0.007 (± 0.002) 0.006 (± 0.002) -0.928 (± 0.358) 0.003 (± 0.002) 0.003 (± 0.002) 0.380 (± 0.519) 0.142 (± 0.151) 2.5% 0.386 (± 0.275)
5PI-EI 0.236** (± 0.040) 0.097 (± 0.108) 0.007 (± 0.002) 0.005 (± 0.002) -1.010 (± 0.664) 0.003 (± 0.001) 0.003 (± 0.001) 0.529 (± 0.663) 0.121 (± 0.099) 6.8%* 0.401 (± 0.271)
COS 0.241* (± 0.043) 0.098** (± 0.103) 0.008 (± 0.003) 0.006 (± 0.002) -0.991 (± 0.528) 0.003 (± 0.002) 0.004 (± 0.002) 0.557 (± 0.828) 0.125 (± 0.109) 4.7% 0.373 (± 0.283)
CSS 0.236** (± 0.041) 0.107** (± 0.117) 0.009 (± 0.003) 0.007 (± 0.003) -1.038 (± 0.555) 0.004 (± 0.003) 0.004 (± 0.003) 0.098 (± 0.670) 0.111 (± 0.160) 4.2% 0.411 (± 0.294)
Genomic average b 0.245 (± 0.041) 0.085 (± 0.095) 0.008 (± 0.003) 0.006 (± 0.002) -1.020 (± 0.510) 0.003 (± 0.002) 0.003 (± 0.002) 0.469 (± 0.781) 0.134 (± 0.110) 4.0% 0.377 (± 0.279)
Genes on the X chromosome
SG 0.239* (± 0.051) 0.103 (± 0.120) 0.009 (± 0.003) 0.007 (± 0.002) -0.980 (± 0.455) 0.002 (± 0.001) 0.002 (± 0.001) 0.105 (± 1.083) 0.226 (± 0.125) 0.6% 0.412 (± 0.318)
5PP 0.263** (± 0.040) 0.074* (± 0.074) 0.007 (± 0.003) 0.006 (± 0.002) -0.891 (± 0.486) 0.002 (± 0.001) 0.003 (± 0.001) 0.433 (± 0.857) 0.233 (± 0.123) 1.9% 0.379 (± 0.295)
EE 0.255 (± 0.037) 0.080 (± 0.056) 0.008 (± 0.001) 0.007 (± 0.001) -0.886 (± 0.279) 0.003 (± 0.001) 0.004 (± 0.001) 0.625 (± 0.639) 0.219 (± 0.061) 1.1% 0.416 (± 0.309)
5PI-EI 0.247 (± 0.038) 0.090 (± 0.081) 0.009 (± 0.002) 0.007 (± 0.002) -0.996 (± 0.363) 0.003* (± 0.001) 0.004 (± 0.000) 0.509 (± 0.839) 0.209 (± 0.086) 1.0% 0.364 (± 0.276)
COS 0.254 (± 0.045) 0.096 (± 0.098) 0.008 (± 0.003) 0.007 (± 0.003) 0.814 (± 0.547) 0.002 (± 0.002) 0.003 (± 0.002) 0.453 (± 0.851) 0.215 (± 0.185) 2.6% 0.375 (± 0.268)
CSS 0.242* (± 0.037) 0.096 (± 0.112) 0.008 (± 0.003) 0.006 (± 0.003) -0.868 (± 0.453) 0.003 (± 0.001) 0.003 (± 0.001) 0.339 (± 0.698) 0.189 (± 0.107) 2.8% 0.344 (± 0.285)
Genomic average b 0.255 (0.043) 0.085 (± 0.088) 0.008 (± 0.003) 0.006 (± 0.002) -0.877 (± 0.489) 0.002 (± 0.001) 0.003 (± 0.002) 0.400 (± 0.857) 0.220 (± 0.141) 2.0% 0.378 (± 0.286)
  1. ac.f. Additional File 1 for data and Additional file 4 for a summary of sample sizes.
  2. bAverage values except for the measure for expression divergence (Expr-Div), where the value provided should be considered the genome wide proportion of differentially expressed genes.
  3. cExpression Divergence: the percentage of differentially expressed genes between D. melanogaster and D. yakuba.
  4. * and ** indicate significant deviation from the genomic average at P-value ≤ 0.05 and P-value ≤ 0.001, respectively (Chi-square test or two-sided Mann-Whitney test, not corrected for multiple testing).