TABLE 1

Maximum-likelihood analysis of synonymous polymorphism and divergence for A. lyrata

ModelDescriptionkaln LModel
 comparisonLikelihood-ratio
 statistic (d.f.)Pb
1Fixed mutation, no selection−131.8
2Free mutation, no selection −95.9M2 vs. M171.8 (17)8.4 × 10−9
3Fixed mutation, selection9.1−119.8M3 vs. M124 (1)9.6 × 10−7
4Free mutation, selection4.3 −91.4M4 vs. M356.8 (17)3.5 × 10−6
M4 vs. M2 9 (1)2.7 × 10−3
  • a Selection parameter for the gene AT1G36310.

  • b Probability of likelihood-ratio test, assuming the χ2 distribution.