Michael G. Pimenov

TL;DR: This work investigates the utility of nuclear ribosomal DNA external transcribed spacer (ETS) sequences for phylogenetic inference in Umbelliferae tribe Tordylieae, and reports that the ETS region evolves at a slightly faster rate and has a higher percentage of parsimony informative characters than that of ITS and all chloroplast DNA loci examined to date.

TL;DR: The internal transcribed spacers of 18S-26S nuclear ribosomal DNA were newly sequenced for eight species of Umbelliferae andPhylogenetic analyses of new data, plus previously reported sequences of 52 other species using neighbor-joining, maximum parsimony, and maxim um likelihood methods yielded similar results.

TL;DR: Taxonomically important structural characters and their states are given in an attempt to clarify and standardise the confusing and ambiguous terminology that is currently used in descriptions and identification keys of Umbelliferae taxa.

TL;DR: New molecular data have cleared up systematic questions in some taxonomically uncertain Iranian Umbelliferae, showing that Calyptrosciadium belongs to Komarovia -clade, having long-distant geographical disjunction.

TL;DR: The phylogenetic relationships of West Asian Heracleum species and related taxa were explored using data from sequences of the internal transcribed spacer (ITS1 and ITS2) region of nuclear ribosomal DNA.