Isolation and analysis of the genetic diversity of repertoires of VSG expression site containing telomeres from Trypanosoma brucei gambiense, T. b. brucei and T. equiperdum

Table 4 BES nucleotide diversity.

Locus	Strain	N° seqs	Length	Polymorphic sites % S	Average nt. Diversity π	N° rec. break points	Tract length
Promoter	T. b. g.	13	621	5.6	0.015	1	311
	T. b. b.	23		24.3	0.058	2	207
	T. eq.	15		13.8	0.046	2	207
*ESAG6*	T. b. g.	12	1197	6.0	0.012	1	599
	T. b. b.	23		17.3	0.051	5	200
	T. eq.	10		8.4	0.030	3	299
*ESAG5*	T. b. g.	13	1429	1.5	0.002	0	1429
	T. b. b.	21		20.0	0.055	7	179
	T. eq.	14		14.6	0.061	7	179
*ESAG2*	T. b. g.	11	1291	15.3	0.047	7	161
	T. b. b.	19		28.7	0.101	9	129
	T. eq.	10		16.9	0.044	9	129

Nucleotide diversity and recombination in BES sequences from three trypanosomatid protozoa. The BES loci studied are indicated on the left. The strains are Trypanosoma brucei gambiense DAL 972 (T.b.g.), T. b. brucei EATRO 2340 (T.b.b.) and T. equiperdum STIB 818 (T. eq.). N° seqs. = number of nucleotide sequences in alignment; L = number of nucleotides in gap-stripped alignment; %S = percentage of polymorphic sites; π = average pairwise nucleotide diversity; N° rec. break points and tract length = number of recombination breakpoints and mean tract length inferred by GARD analysis.

ISSN: 1471-2164