Triploidy in Equisetum subgenus Hippochaete (Equisetaceae, Pteridophyta)
نویسندگان
چکیده
منابع مشابه
PHYLOGENETIC RELATIONSHIPS AND EVOLUTION OF EXTANT HORSETAILS, EQUISETUM, BASED ON CHLOROPLAST DNA SEQUENCE DATA (rbcL AND trnL-F)
Equisetum is a small and morphologically distinct genus with a rich fossil record. Two subgenera have been recognized based principally on stomatal position and stem branching: subg. Equisetum (eight species; superficial stomates; stems branched) and subg. Hippochaete (seven species; sunken stomates; stems generally unbranched). Prior attempts at understanding Equisetum systematics, phylogeny, ...
متن کاملEquisetum species show uniform epicuticular wax structures but diverse composition patterns
BACKGROUND AND AIMS Only few data on the epicuticular waxes (EWs) of horsetails are available. This contribution therefore focuses on the wax micromorphology and chemical composition of Equisetum species of the subgenera Equisetum and Hippochaete. METHODOLOGY Distribution patterns and structural details of EW on the shoots were studied by scanning electron microscopy. After extraction with ch...
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The global herbal products market has grown in recent years, making regulation of these products paramount for public healthcare. For instance, the common horsetail (Equisetum arvense L.) is used in numerous herbal products, but it can be adulterated with closely related species, especially E. palustre L. that can produce toxic alkaloids. As morphology-based identification is often difficult or...
متن کاملChloroplast Genome Differences between Asian and American Equisetum arvense (Equisetaceae) and the Origin of the Hypervariable trnY-trnE Intergenic Spacer
Comparative analyses of complete chloroplast (cp) DNA sequences within a species may provide clues to understand the population dynamics and colonization histories of plant species. Equisetum arvense (Equisetaceae) is a widely distributed fern species in northeastern Asia, Europe, and North America. The complete cp DNA sequences from Asian and American E. arvense individuals were compared in th...
متن کاملEquisetum
posts are held by men. It isn’t always easy for young women to have social confidence necessary to not only engage but stand out in their respective scientific communities and the competition for faculty positions is stiff. That being said, I think a lot has changed for the better in the last 20 years that I have been in science and the climate is still improving. A second challenge that women ...
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ژورنال
عنوان ژورنال: Annals of Botany
سال: 2005
ISSN: 0305-7364,1095-8290
DOI: 10.1093/aob/mci084