Fig. 18

Pholcinae: karyotype characters mapped on a cladogram. Based on the most recent molecular phylogeny of Pholcidae [20, 21]. Standard continuous lines: low bootstrapping branch support, i.e. < 70%; thick continuous lines: modest to full support of hypotheses, ≥ 70% [21]; discontinuous lines: taxa not included in molecular phylogeny—phylogenetic position is based on cytogenetic data (dashed lines) or unresolved (dotted lines). Number above mark: number of character; number below mark: character state. Full marks: characters without homoplasy; empty marks: homoplasic characters. In some species, data on some characters are missing (information in square brackets). Selected events are marked E and numbered (see Additional file 1: Table S1 for chromosomes formed by these events). Chromosomes formed by the other events are identifiable unequivocally in Additional file 1: Table S1. Concerning chromosome pairs, only well-defined events changing chromosome morphology substantially are considered. Reconstruction of karyotype evolution is based on our data, except for taxa marked by the formula RX (see reference X for information). See "Methods" (pp. 32–33) for coding of characters