Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 1 of 1
Full-Text Articles in Life Sciences
Molecular Systematics Of Isoëtes (Isoëtaceae) In Eastern North America, Peter William Schafran
Molecular Systematics Of Isoëtes (Isoëtaceae) In Eastern North America, Peter William Schafran
Biological Sciences Theses & Dissertations
Isoëtes (Isoëtaceae, Isoetales, Lycopodiophyta) is a cosmopolitan genus of aquatic lycophytes, occurring on every continent except Antarctica. Of approximately 200 total taxa, about half are in a clade of species mostly occurring in North and South America. Eastern North America accounts for 22% of global taxonomic diversity, containing 32 fertile taxa and 16 named hybrids. This taxonomic diversity is built upon relatively little morphological difference, and even combined with phylogenetic analysis using several nuclear and chloroplast DNA markers, no well-resolved systematic treatment within this clade exists.
This study aims to clarify the relationships between all species and subspecies of Isoëtes …