Browsing by Subject "SEQUENCES"
Now showing items 1-8 of 8
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Comparative morphology of reproductive structures in heterosporous water ferns and a reevaluation of the sporocarp
(International Journal of Plant Sciences, 2006-07-01)Heterosporous water ferns (Marsileaceae and Salviniaceae) are the only extant group of plants to have evolved heterospory since the Paleozoic. These ferns possess unusual reproductive structures traditionally termed "sporocarps." ... -
Integrative Regulatory Mapping Indicates that the RNA-Binding Protein HuR Couples Pre-mRNA Processing and mRNA Stability
(MOLECULAR CELL, 2011-08-05) -
Molecular phylogenetic relationships and morphological evolution in the heterosporous fern genus Marsilea
(Systematic Botany, 2007-01-01)Using six plastid regions, we present a phylogeny for 26 species of the heterosporous fern genus Marsilea. Two well-supported groups within Marsilea are identified. Group I includes two subgroups, and is relatively species-poor. ... -
On the phylogenetic position of Cystodium: It's not a tree fern - It's a polypod!
(American Fern Journal, 2006-04-01)The phylogenetic position of Cystodium J. Sm. is studied here for the first time using DNA sequence data. Based on a broad sampling of leptosporangiate ferns and two plastid genes (rbcL and atpB), we show that Cystodium ... -
Species relationships and farina evolution in the cheilanthoid fern genus Argyrochosma (Pteridaceae)
(Systematic Botany, 2011-07-01)Convergent evolution driven by adaptation to arid habitats has made it difficult to identify monophyletic taxa in the cheilanthoid ferns. Dependence on distinctive, but potentially homoplastic characters, to define major ... -
Structure and function of spores in the aquatic heterosporous fern family Marsileaceae
(International Journal of Plant Sciences, 2002-01-01)Spores of the aquatic heterosporous fern family Marsileaceae differ markedly from spores of Salviniaceae, the only other family of heterosporous ferns and sister group to Marsileaceae, and from spores of all homosporous ... -
The paraphyly of Osmunda is confirmed by phylogenetic analyses of seven plastid loci
(Systematic Botany, 2008-03-01)To resolve phylogenetic relationships among all genera and subgenera in Osmundaceae, we analyzed over 8,500 characters of DNA sequence data from seven plastid loci (atpA, rbcL, rbcL-accD, rbcL-atpB, rps4-trnS, trnG-trnR, ... -
Toward a monophyletic Notholaena (Pteridaceae): Resolving patterns of evolutionary convergence in xeric-adapted ferns
(Taxon, 2008-01-01)Cheilanthoid ferns (Pteridaceae) are a diverse and ecologically important clade, unusual among ferns for their ability to colonize and diversify within xeric habitats. These extreme habitats are thought to drive the extensive ...
