TABLE 2

Distribution of SFPs among different genomic classes in lab strains and natural isolates

SFP
Frequency
class
No. lociORFsIntergenicTransposable
elements
Lab strains
(0,5)120,69796,3377,5583,277
(1,4)3,7692,980236139
(2,3)1,7171,3016155
Natural isolates
(0,4)119,41595,2797,5213,196
(1,3)3,9763,131222203
(2,2)1,1729306127
  • Polymorphism frequency class denotes number of strains that are polymorphic within each group. The number of loci in each polymorphism frequency class is indicated under “No. loci.” The subset of these loci falling in open reading frames, intergenic areas, and in transposable elements is indicated under “ORFs,” “Intergenic,” and “Transposable element” headings, respectively. Loci counts are out of a possible 126,645 loci examined.