Theories and Applications for Sequencing Randomly Selected Clones

Table 1.

Nomenclature

Symbol Meaning
b number of bases from one cut site to the next in a uniformly distributed library
i number of sequenced clones
e Euler's constant (≈2.71828)
m user-specified level of restriction site bias
n number of expected restriction sites per specified segment length
N total number of clones in a multi-fold library
s restriction enzyme specificity (number of bases)
χ distance in bases along linearly arranged genome
θexp experimentally determined average overlap of sequenced clones (%)
G linear genome length in bases (∼3 Gb for human genome)
L 0 nominal clone length in bases (∼170,000 for BAC clones)
θ0 required threshold to detect clone overlap in a mapping project (%)
L(i) effective bases of genome covered after sequencing iclones
C(i) effective percentage of genome covered after i clones =L(i)/G
θ(i) redundancy after sequencing iclones
f n Poisson probability density function for restriction site distribution
R(i) rate of progress after sequencing i clones
ϕ library depth
μavg Poisson average number of restriction sites per specified segment length

This Article

  1. Genome Res. 11: 274-280

Preprint Server