@article {96, title = {Phylogeny of Iso{\"e}tes (Lycopsida): Resolving basal relationships using rbcL sequences}, journal = {Taxon}, volume = {51}, year = {2002}, note = {Cited By (since 1996):20Export Date: 11 November 2013Source: Scopus}, month = {2002///}, pages = {83 - 89}, abstract = {The phylogenetic relationships of Iso{\"e}tes (Iso{\"e}taceae) were investigated by means of a cladistic analysis using plastid rbcL sequences and a representative sample of 18 species. The analysis supports a basal split in Iso{\"e}tes separating two main groups, one including aquatic species from South America (I. bradei and I. amazonica) and West Africa (I. kersii and I. schweinfurthii), and the other including aquatic, amphibious and terrestrial species representing all major continents. Higher level relationships remain unresolved, but supported groups do conflict with previous morphology-based hypotheses. Comparatively low levels of sequence divergence indicate that the use of more rapidly evolving regions will be required to resolve higher level relationships. The phylogenetically isolated nature of Iso{\"e}tes will in such analyses make standard outgroup comparisons problematic, and results presented here will in this respect prove important by providing support for choosing among alternative rooting options.}, keywords = {Isoetaceae, Isoetes, Phylogeny, rbcL}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0036254372\&partnerID=40\&md5=f4c2dc2699e8c72b00c4dccdb1f20c1f}, author = {Rydin, C. and Wikstr{\"o}m, N.} }