This study represents phylogenetic analyses of two woody polygonaceous genera Calligonum and Pteropyrum using both chloroplast fragment (trnL-F) and the nuclear ribosomal internal transcribed spacer (nrDNA ITS) sequence data. All inferred phylogenies using parsimony and Bayesian methods showed that Calligonum and Pteropyrum are both monophyletic and closely related taxa. They have no affinity w...

Poa, the largest genus of grasses (Poaceae) with over 500 species, occurs throughout temperate and boreal regions in both hemispheres. A phylogenetic study of Poa based on trnT–trnF chloroplast DNA sequence data is presented focusing on basal relationships, major clades, generic boundaries, and placement of putatively closely related genera. Results support the monophyly of the main lineage of ...

Using six plastid regions, we present a phylogeny for 26 species of the heterosporous fern genus Marsilea. Two well-supported groups within Marsilea are identified. Group I includes two subgroups, and is relatively species-poor. Species assignable to this group have glabrous leaves (although land leaves may have a few hairs), sporocarps lacking both a raphe and teeth, and share a preference for...

this study represents phylogenetic analyses of two woody polygonaceous genera calligonum and pteropyrum using both chloroplast fragment (trnl-f) and the nuclear ribosomal internal transcribed spacer (nrdna its) sequence data. all inferred phylogenies using parsimony and bayesian methods showed that calligonum and pteropyrum are both monophyletic and closely related taxa. they have no affinity w...

A phylogenetic study of the Opopanax and Crenosciadium was conducted to elucidate their circumscription infrageneric relationships. Sequence data from nrDNA ITS, cpDNA matK trnL-F were used determine relationship. Polymerase Chain Reaction (PCR) amplifications all regions performed using universal primers. Maximum Likelihood (ML) trees constructed PAUP* software, another tree ITS sequences show...

AbstractMolecular identification using short orthological DNA sequences (DNA barcoding) has been applied for the classification of orchid species which is a major step in biodiversity management, conservation, breeding, authenticating components herbal products, and tracking adulteration species. One most widely used loci phylogenetic inference at generic infrageneric levels plants was ITS loca...

Despite the common use of Thesium species as food and medicine prevailing systematic (taxonomic) difficulties genus, diversity phenolic compounds their chemophenetic value remain largely unknown. As part ongoing research on Thesium, composition were investigated at four taxonomic ranks: generic, infrageneric, interspecific infraspecific. Liquid chromatography–mass spectrometry, multivariate ana...

We present a five-locus 129-species phylogeny of Rutaceae from subfamily Zanthoxyloideae, with 193 ingroup samples representing 128 species all 18 genera in the Eriostemon Group and focus on generic infrageneric limits Phebalium its allies. Maximum parsimony Bayesian inference analyses were performed using three plastid markers (psbA–trnH, trnL–trnF, rbcL) two nuclear ribosomal (ITS, ETS). Aste...

BACKGROUND AND AIMS Paris (Melanthiaceae) is a temperate genus of about 24 perennial herbaceous species distributed from Europe to eastern Asia. The delimitation of the genus and its subdivisions are unresolved questions in the taxonomy of Paris. The objective of this study is to test the generic and infrageneric circumscription of Paris with DNA sequence data. METHODS Phylogenetic analysis o...