Linaria sagrensis, from the south-eastern Iberian Peninsula, is here newly described, illustrated, and compared with its morphologically closest relatives L. sect. Supinae: pruinosa, nevadensis, glacialis alpina subsp. alpina. The species characterized by being perennial, entirely glandular-hairy, inflorescence dense corymbiform, calyx lobes unequal; corolla small, pinkish-violet, conspicuous d...

Polyploidy plays a major role in the evolution of angiosperms with multiple paleopolyploid events having been suggested making it plausible that all angiosperms have a polyploid event in their history. Polyploidy can arise by genome duplication within a species (i.e., autopolyploidy), or whole genome duplication coupled with hybridization (i.e., allopolyploidy). Penstemon subsection Saccanthera...

PREMISE OF THE STUDY Polyploidy may generate novel variation, leading to adaptation and species diversification. An excellent natural system to study polyploid evolution in a comparative framework is Veronica (Plantaginaceae), which comprises several parallel, recently evolved polyploid series. METHODS Over 105 million Illumina paired-end sequence reads were generated from cDNA libraries of l...

Despite their complex evolutionary histories, aquatic plants are highly underrepresented in contemporary biosystematic studies. Of them, the genus Callitriche is particularly interesting because of such evolutionary features as wide variation in chromosome numbers and pollination systems. However, taxonomic difficulties have prevented broader investigation of this genus. In this study we applie...

Because of increasing efforts to recover hydrocarbon deposits found in this geological formation, P. scariosus var. albifl uvis is being considered for listing under the Endangered Species Act of 1973 (Ashe, 2013). Thus, there is an urgent need to understand genetic diversity within P. scariosus and especially within variety albifl uvis. Identifying robust and reliable P. scariosus simple seque...