Genetic characteristics of the trypanosome populations studied.

pos = positive, neg = negative, seq = sequence identity, n.a. = not applicable, n.d. = not done, (f) = faint, * amplification failed may be due to restricted elongation time in PCR protocol or probably high number of repeats present.

pos 指阳性（positive），neg 指阴性（negative），seq 指序列一致性（sequence identity），n.a. 指不适用（not applicable），n.d. 指未完成（not done），(f) 指条带模糊（faint）；* 扩增失败可能是由于PCR实验方案中延伸时间受限，或是样本中存在大量重复序列所致。