@book {59,
	title = {Phylogeny and biogeography of Iso{\"e}tes (Iso{\"e}taceae) based on nuclear and chloroplast DNA sequence data},
	series = {Systematic Botany},
	volume = {31},
	year = {2006},
	note = {Cited By (since 1996):14Export Date: 11 November 2013Source: Scopus},
	month = {2006///},
	pages = {449 - 460},
	abstract = {Despite its ancient origins, worldwide distribution, and adaptation to diverse habitats, Iso{\"e}tes species have a highly conserved morphology, making it difficult to resolve phylogenetic relationships using morphological characters. In this paper, we report the results from various analyses (maximum parsimony, maximum likelihood, and Bayesian inference) for Iso{\"e}tes species from around the world based on nucleotide sequences from the nuclear internal transcribed spacer (ITS) and chloroplast atpB/rbcL intergenic spacer regions. The trees resulting from our analyses of the combined data contain six major well-supported clades (bootstrap >= 90\%, posterior probabilities = 1.00): A clade with possible Gondwanan affinities (I. australis, I. coromandelina, I. panamensis, I. cubana, I. jamaicensis); a South African clade (I. capensis, I. toximontana, I. stellenbossiensis, I. stephansenii); a largely Northern Hemisphere clade (I. nuttallii, I. orcuttii, I. minima, I. dixitei, I. abyssinica, I. olympica, I. longissima, I. velata); an Asian/Australasian clade (I. drummondii, I. gunnii, I. pusilla, I. kirkii, I. muelleri, I. taiwanensis, I. japonica, I. yunguiensis, I. habbemensis); a Mediterranean clade (I. histrix and I. setacea); and a poorly resolved clade consisting of 12 new world species (American species complex). Our results are compared to past classifications and various biogeographical scenarios are explored. {\textcopyright} Copyright 2006 by the American Society of Plant Taxonomists.},
	keywords = {Biogeography, Isoetaceae, Isoetes, Phylogeny},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-67650146436\&partnerID=40\&md5=c418d4b55db9dd7f2436a8d3189f1552},
	author = {Hoot, S.B. and Taylor, W.C. and Napier, N.S.}
}
@article {60,
	title = {Inferring the root of Iso{\"e}tes: Exploring alternatives in the absence of an acceptable outgroup},
	journal = {Systematic Botany},
	volume = {31},
	year = {2006},
	note = {Cited By (since 1996):11Export Date: 11 November 2013Source: Scopus},
	month = {2006///},
	pages = {258 - 270},
	abstract = {The ancient divergence between the lycopsid genus Iso{\"e}tes and its closest living relative (Selaginella) has resulted in considerable morphological and genetic disparity, yet within Iso{\"e}tes there is remarkable morphological and genetic uniformity. This has made it difficult to identify the phylogenetic root of the genus. In this study, we addressed this problem and characterized the early branching patterns within Iso{\"e}tes using an expanded set of taxa and three molecular markers. We assessed the saturation in the molecular data sets, tested for differences in evolutionary rate, determined the stability of the ingroup topology, and evaluated the applicability of the molecular clock. We then explored three alternative rooting approaches: outgroup, midpoint, and maximum likelihood under the assumption of a molecular clock. Attempts to infer the root of Iso{\"e}tes using the outgroup approach were severely hindered by the effects of saturation, but the results from midpoint rooting and the enforcement of the molecular clock were highly consistent among the data sets. We identify the root of Iso{\"e}tes to be located among three major, highly supported clades. {\textcopyright} Copyright 2006 by the American Society of Plant Taxonomists.},
	keywords = {Isoetaceae, Isoetes, Lycophyte, Midpoint rooting, Phylogenetic root, Relative rate comparisons},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-33745493624\&partnerID=40\&md5=8d3abb9eb77572545e97747f1aaf51a5},
	author = {Schuettpelz, E. and Hoot, S.B.}
}
