[Genosystematics and new insight on phylogeny and taxonomy of liverworts].

The paper covers a current state of molecular studies of liverworts including new data from authors. The traditional conceptions of liverwort phylogeny and systematics were changed greatly in a result of recent molecular researches. The phylogenetic inferences from studies of different DNA loci and species sampling are mainly congruent. The phylogeny and systematics of one of the largest and taxonomically difficult suborder Jungermaniineae was discussed based on analyses of internal transcribed spacer ITS1-2 of nuclear rDNA and chloroplast trnL-F of large species number.

[Phylogeny of the genus Lophozia (Dumort.) Dumort. s. str. inferred from nuclear and chloroplast sequences ITS1-2 and TRNL-F].

Maximum parsimony and maximum likelihood phylogenetic trees were constructed for 21 taxa of Lophozia s. str. and the related genera, Schistochilopsis (5 species), Protolophozia elongate, and Obtusifolium obtusum based on pooled nuclear ITS 1-2 and chloroplast trnL-F DNA sequences. The trees were characterized by similar topology. It was demonstrated that the genus Lophozia s. str. was monophyletic, excluding L. sudetica, which deserved isolation into a distinct cryptic genus. The species distribution among the clades disagreed with the sections distinguished based on anatomical and morphological data. The relationships within the genus Schistochilopsis were consistent with the sectioning of the genus, based on morphological characters. Analysis of molecular data provided more precise definition of the systematic position of a number of taxa. Small genetic divergence of geographically distant forms was demonstrated.