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Table 2 Number of core genes, number of shared nucleotides and R 2 correlation between sequence and gene content evolution

From: Acquisition and loss of virulence-associated factors during genome evolution and speciation in three clades of Bordetella species

Data set Core genome: Gene content Core Genome: Shared nucleotide loci (bp) Correlation between sequence and gene content evolution
Total Polymorphic sites R 2 P value
bp bp %
128 bordetellae 850 184,916 42,577 23.025 0.74 0.00001
 94 classical bordetellae 1828 2,569,320 86,508 3.367 0.29 0.00001
  58 B. bronchiseptica 3284 3,908,069 121,219 3.102 0.37 0.00001
  2 B. parapertussis 3592 4,249,275 19,301 0.454 NA NA
  34 B. pertussis 2632 3,265,138 2,543 0.078 0.68 0.00001
 34 non-classical bordetellae 1209 214,564 47,646 22.206 0.81 0.00001
  18 B. holmesii 2654 702,836 144 0.021 0.09 0.04148
  6 B. hinzii 3978 1,202,277 4,071 0.339 0.21 0.03026
  4 B. trematum 3629 948,918 2,394 0.252 0.63 0.04192
  1 B. avium NA NA NA NA NA NA
  2 B. ansorpii 4033 1,048,733 29,556 2.818 NA NA
  3 B. petrii 2629 741,871 91,356 12.314 0.74 0.16443
  1. NA not applicable