Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Global divergence of microbial genome sequences mediated by propagating
  fronts   We model the competition between recombination and point mutation in
microbial genomes, and present evidence for two distinct phases, one uniform,
the other genetically diverse. Depending on the specifics of homologous
recombination, we find that global sequence divergence can be mediated by
fronts propagating along the genome, whose characteristic signature on genome
structure is elucidated, and apparently observed in closely-related {\it
Bacillus} strains. Front propagation provides an emergent, generic mechanism
for microbial "speciation", and suggests a classification of microorganisms on
the basis of their propensity to support propagating fronts.

3
The categories of this paper are: physics
37
The categories of this paper are: supr-con
36
The categories of this paper are: cmp-lg
35
The categories of this paper are: mtrl-th
23
The categories of this paper are: solv-int
5
The categories of this paper are: gr-qc
9
The categories of this paper are: nlin
12
The categories of this paper are: nucl-th
25
The categories of this paper are: patt-sol
33
The categories of this paper are: plasm-ph
14
The categories of this paper are: math-ph
15
The categories of this paper are: nucl-ex
34
The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat
22
The categories of this paper are: chao-dyn
16
The categories of this paper are: stat