TNT version 1.5, including a full implementation of geometric morphometrics.

GOLOBOFF, PABLO A.; CATALANO, SANTIAGO

CLADISTICS (PRINT)

WILEY-BLACKWELL PUBLISHING, INC

Lugar: Londres; Año: 2016 p. 221 - 238

0748-3007

Version 1.5 of the computer program TNT completely integrates landmark data into phylogenetic analysis. Landmark dataconsist of coordinates (in two or three dimensions) for the terminal taxa; TNT reconstructs shapes for the internal nodes suchthat the difference between ancestor and descendant shapes for all tree branches sums up to a minimum; this sum is used as tree score. Landmark data can be analysed alone or in combination with standard characters; all the applicable commands andoptions in TNT can be used transparently after reading a landmark data set. The program continues implementing all the typesof analyses in former versions, including discrete and continuous characters (which can now be read at any scale, and automatically rescaled by TNT). Using algorithms described in this paper, searches for landmark data can be made tens to hundreds of times faster than it was possible before (from T to 3T times faster, where T is the number of taxa), thus making phylogenetic analysis of landmarks feasible even on standard personal computers.