Six special variation positions (SVP). The location of each SVP in the sequence is indicated by Arabic numbers on the top. The omitted sequences are indicated by ellipses. The black short line indicates that there is no base. Flk-PLE1GN is from the Guangning (GN) population. Flk-PLE1YS is from the Yangshuo (YS) population. Flk-PLE1GX is from the Ganxian (GX) population, and so on.