Table 2. Genome organisation of representative species (discussed in this contribution) within the order of Burkholderiales.

Organisma,b	Main property	Family	Principle habitat	CHR1	CHR2	Replicon 3 c	Replicon 4	Year/Ref.
C. metallidurans* CH34	heavy metal resistance	Burkholderiaceae	heavy metal-rich sediments and soils	3.93	2.58	0.17 (pMOL28)	0.23 (pMOL30)	This report
C. pinatubonensis JMP134	degrader of xenobiotics	Burkholderiaceae	soil, aquatic; volcanic mudflow deposits	3.81	2.74	0.63 (MPL)	0.09 (pJP4)	unpublished
C. eutrophus H16	hydrogen oxidation, PHA1 metabolism	Burkholderiaceae	soil, freshwater	4.05	2.91	0.45 (pHG1)	-	2006/[45]
C. taiwanensis	N2-fixing legume symbiont	Burkholderiaceae	plant root nodules	3.42	2.50	0.56 (pRALTA)	-	2008/[46]
R. solanacearum GMI1000	plant pathogen with wide host range	Burkholderiaceae	soil, rhizosphere	3.72	2.09	-	-	2002/[223]
B. xenovorans LB400	PCB2 degrader	Burkholderiaceae	rhizosphere, polluted soils, landfills	4.90	3.36	1.47 (MPL)	-	2006/[224]
D. acidovorans* SPH-1	organotrophy, LAS3 degrader	Comamonadaceae	soil, aquatic, sewage	6.77	-	-	-	unpublished
B. petrii* Se-1111R	degrader of aromatic compounds	Alcaligenaceae	river sediments, TCB4 contaminated soils	5.29	-	-	-	2008/[148]
Janthinobacterium sp.	heavy metal resistance, small sized	Oxalobacteraceae	aquatic, 0.22 µm filtered water	4.11	-	-	-	2007/[225]
H. arsenicoxydans	arsenic oxidation and scavenging	Oxalobacteraceae	activated sludge, industrial waste water	3.42	-	-	-	2007/[226]
P. necessarius STIR1	obligate intracellular endosymbiont	Burkholderiaceae	freshwater ciliates	1.56	-	-	-	unpublished

^aspecies that are rarely recovered from clinical samples are indicated with an asterisk (*);

^bonly the propensity for which the species and/or particular strain is best known is given;

^cMPL, megaplasmid.

¹PHA, poly(3-hydroxybutyric acid) (cfr. ‘bioplastic’);

²PCB, polychlorinated biphenyl (cfr. ‘herbicide’);

³LAS, linear alkylbenzene sulfonate (cfr. ‘laundry surfactant’);

⁴TCB, trichlorobenzene.