Table 1.

Primer sequences used for RT-PCRs.

Name	Sequence (5′ → 3′)	Application
regionAB-for	TGCTATTCGGGGATGAGGC	Determination of cluster organization
regionAB-rev	CATATGCATCGTCAAGCCCC
regionBC-for	CGTATCAGAGAGCGCCGAT
regionBC-rev	CGCCATCTCGTCAATACCGA
aqdC-for	CGATCGGAATCTAGTTGGCG	RT-qPCR of aqdC
aqdC-rev	GAAACTGTCCACCTCAAGCG
aqdR-for	TCGACCGAGAAGAAACCACA	RT-qPCR of aqdR
aqdR-rev	ATCCGTGTTTGTTCGATGCC
16S-for	CAGGGCTTCACACATGCTAC	RT-qPCR internal control gene
16S-rev	AGACCCCAATCCGAACTGAG