TABLE 2

The number of polymorphic sites within species

Promoter and 5′ leaderExonsIntrons
nSubsIndelsAvg. lengthSyn.Rep.IndelsAvg. lengthSubsIndelsAvg. length
Maize96618118194756139208
Parviglumis81311181282657552210200
Z. luxurians 68518047075662195
Zeaa232017181425467563417195
T. dactyloides 3105199411176212192

n, the number of lines examined in each taxa; Subs, the number of base substitutions at the sequence level; Indels, the number of insertion-deletion events; Avg. length, the average sequence length of the lines (these lengths vary slightly among lines because of indel variation); Syn., the number of synonymous polymorphisms in exons; Rep., the number of replacement or nonsynonymous polymorphisms in exons.

  • a The group Zea refers to all sequences from maize, parviglumis, and Z. luxurians.