title: Chromosomes of Onchocerca volvulus (Spirurida: Onchocercidae): a comparative study between Nigeria and Guatemala.
abstract: Chromosomes of Nigerian Onchocerca volvulus were compared with those of Guatemalan O. volvulus. Both parasites had basically the same chromosomal construct (2n = 8, XY type). Autosomes consisted of a pair of large and two smaller pairs. Sex chromosomes were made up of medium sized X chromosome and very small Y chromosome. It was not possible to infer the position of the centromeres.
mesh_terms: D000818:Animals; D002875:Chromosomes; D005260:Female; D006166:Guatemala; D006801:Humans; D007621:Karyotyping; D008297:Male; D009549:Nigeria; D009854:Onchocerca / Q000235:genetics*; D012730:Sex Chromosomes