Table 1.

Primers used in this study.

Primer	Sequence (5´→3´)
dr1343-F	caacgacctgaccgacaacc
dr1343-R	ggctgctttcgtcgtactcc
dxs(dr1475)-F	ctgcgcgggatgctcaagta
dxs(dr1475)-R	atttcaggtccggccacgtc
dxr(dr1508)-F	gaagcatccgtcgtggagca
dxr(dr1508)-R	cgtagaggctggcacactcc
ispD(dr2604)-F	cctctgggcggtgcaaacac
ispD(dr2604)-R	gtcgtcggtggcagcgtact
ispE(dr2605)-F	cctcggcctctcggtcctt
ispE(dr2605)-R	aggccgaatttccagctcgt
ispF(dr0230)-F	gtgaacgtcgctctcgtggt
ispF(dr0230)-R	cagcaggcagaccgagcag
ispG(dr0386)-F	gagcaagcacgccaacatcg
ispG(dr0386)-R	ttcagcgtcgtcagcagctt
ispH(dr2164)-F	gcgtcgtcatggcgattcag
ispH(dr2164)-R	cgctccaccaccgtgtgatt
idi(dr1087)-F	tcttgcagcgggttgaggtg
idi(dr1087)-R	cgcggcgcagtttatgctc
crtE(dr1395)-F	ttcgggacgacgtgctcaac
crtE(dr1395)-R	gatcagggtgcgcttgcctt
crtB(dr0862)-F	caggccgtattcgtcgagca
crtB(dr0862)-R	aactcggtcaggcgatgcag
crtI(dr0861)-F	agcaggctcatgctttcgct
crtI(dr0861)-R	cgactgggcgaacacctacc