A multivariate statistical analysis was performed on morphological characters of sixty-one populations of Avena eriantha Dur. A. clauda Dur., A. barbata Pott ex Link., A. wiestii Steud., A. fatua L., A. sterilis ssp. ludoviciana L. and A. sativa L. Factor analysis revealed that intraspecific morphological variations are due to quantitative characters. Interspecific as well as intersectional rel...

the genus aegilops is one of the wheat relatives which comprise the main part of its gene pool.the identification of the aegilops species is difficult due to their vast morphological similarities and geneflow among different species of aegilops and cultivated wheat. some morphological characters are used todistinguish different species in aegilops. in this study, we evaluate all these character...

We elaborate a framework for investigating the evolutionary history of morphological characters. We argue that morphological character trees generated by phylogenetic analysis of transcriptomes provide a useful tool for identifying causal gene expression differences underlying the development and evolution of morphological characters. They also enable rigorous testing of different models of mor...

SUN, F.-J. AND S. R. DOWNIE (Department of Plant Biology, 265 Morrill Hall, 505 South Goodwin Avenue, University of Illinois at Urbana-Champaign, Urbana, IL 61801 USA). Phylogenetic analyses of morphological and molecular data reveal major clades within the perennial, endemic western North American Apiaceae subfamily Apioideae. J. Torrey Bot. Soc. 137: 133–156, 2010.—The taxonomy and phylogeny ...

A cladistic analysis of sequences from the chloroplast gene rbcL was used to determine the systematic affinities of Rhizophoraceae and Anisophylleaceae. This analysis rejects close relationships of Rhizophoraceae with Celastraceae or Elaeocarpaceae, suggested previously, and identifies Erythroxylaceae as sister group within the Malpighiales, supported by several morphological and anatomical cha...

Phragmites australis is the dominant and constructive species among plant communities in the wetlands of the downstream of Yellow River, China. Its morphological characters were high variable in different habitats. Studies on Morphological and RAPD variation of 15 P. australis populations from this region showed that soil salinity was the dominant ecological factor that affected the morphologic...