Zobrazeno 1 - 10
of 72
pro vyhledávání: '"Christopher H. Haufler"'
Autor:
Tom A. Ranker, Christopher H. Haufler
With their team of contemporary scholars, the editors present a thorough coverage of fundamental topics necessary for obtaining an up-to-date understanding of the biology of ferns and lycophytes. The book is organized into major topics that build fro
Autor:
Eric Schuettpelz, Kathleen M. Pryer, Amanda L. Grusz, Michael D. Windham, Kathryn T. Picard, Christopher H. Haufler
Publikováno v:
American Journal of Botany. 108:263-283
Premise Xeric environments impose major constraints on the fern life cycle, yet many lineages overcome these limitations by evolving apomixis. Here, we synthesize studies of apomixis in ferns and present an evidence-based model for the evolution and
Autor:
Michael D. Windham, Layne Huiet, Jordan S. Metzgar, Tom A. Ranker, George Yatskievych, Christopher H. Haufler, Kathleen M. Pryer
Publikováno v:
American journal of botanyREFERENCES. 109(5)
The taxonomic status of Wright's cliff brake fern, Pellaea wrightiana, has been in dispute ever since it was first described by Hooker in 1858. Previously published evidence suggested that this "taxon" may represent a polyploid complex rather than a
Autor:
Christopher H. Haufler
Publikováno v:
American Fern Journal. 111
Publikováno v:
Systematic Botany. 39:1042-1055
The Polypodium vulgare complex (Polypodiaceae) comprises a well-studied group of fern taxa whose members are cryptically differentiated morphologically and have generated a confusing and highly reticulate species cluster. Once considered a single spe
Autor:
James E. Watkins, Michael D. Windham, Donald R. Farrar, Emily B. Sessa, Kathleen M. Pryer, Robbin C. Moran, Eric Schuettpelz, Jakob Schneller, Christopher H. Haufler
Homosporous vascular plants are typically depicted as extreme inbreeders, with bisexual gametophytes that produce strictly homozygous sporophytes. This view is promulgated in textbook life cycles despite ample evidence that natural populations of mos
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fe0459f19f355d8a66956ce584ce2fb1
https://doi.org/10.5167/uzh-126297
https://doi.org/10.5167/uzh-126297
Autor:
Christopher H. Haufler
Publikováno v:
Brittonia. 59:108-114
About 25 years ago, a revolution began in evolutionary studies of seed-free vascular plants. Whereas common wisdom and laboratory-based observations had averred that minute spores and inbreeding of individual bisexual gametophytes diminished barriers
Publikováno v:
International Journal of Plant Sciences. 166:761-780
Allozyme variation (17 loci coding 11 enzymes) was investigated in 14 populations of the fern Athyrium filix-femina var. asplenioides arrayed at differing elevations and latitudes in the southern Appalachians. Allozyme fingerprints showed that asplen
Autor:
Peter Hovenkamp, Harald Schneider, Raymond Cranfill, Christopher H. Haufler, Alan R. Smith, Thomas Janssen, Tom A. Ranker
Publikováno v:
International Journal of Plant Sciences. 165:1077-1087
Thylacopteris is the sister to a diverse clade of polygrammoid ferns that occurs mainly in Southeast Asia and Malesia. The phylogenetic relationships are inferred from DNA sequences of three chloroplast genome regions (rbcL, rps4, rps4‐trnS IGS) fo
Autor:
Alan R. Smith, Raymond Cranfill, Terri J. Hildebrand, Christopher H. Haufler, Tom A. Ranker, Harald Schneider
Publikováno v:
Molecular Phylogenetics and Evolution. 31:1041-1063
We explore the phylogeny of the polygrammoid ferns using nucleotide sequences derived from three plastid loci for each of 98 selected species. Our analyses recovered four major monophyletic lineages: the loxogrammoids, two clades consisting of taxa r