This study highlights the need to understand more fully the phytochemical properties of Cannabis sativa, which has the potential to act as a ‘spatially aggregating agent’ to form cannabis plants.
Complete plastome sequences of Equisetum arvense and Isoetes flaccida: implications for phylogeny and plastid genome evolution of early land plant lineages
Results from this study demonstrate resolution among the four monilophytes lineages, albeit with moderate support; and posit a clade consisting of Equisetaceae and Psilotaceae that is sister to the "true ferns," including Marattiaceae.
Conducting tissues and phyletic relationships of bryophytes.
- R. Ligrone, J. G. Ducket, K. Renzaglia
- BiologyPhilosophical transactions of the Royal Society…
- 29 June 2000
Internal specialized conducting tissues, if present, are restricted to the gametophytic generation in liverworts while they may occur in both generations in mosses. Conducting tissues are unknown in…
Vegetative and reproductive innovations of early land plants: implications for a unified phylogeny.
- K. Renzaglia, Duff RJT, D. Nickrent, D. Garbary
- Biology, Environmental SciencePhilosophical transactions of the Royal Society…
- 29 June 2000
Development and structural innovations suggest the three bryophyte groups diverged prior to elaboration of this generation, and phylogenetic analysis of three different data sets is the most comprehensive to date and points to a single phylogenetic solution for the evolution of basal embryophytes.
Motile Gametes of Land Plants: Diversity, Development, and Evolution
The architecture and ontogeny of motile male gametes among major groups of land plants and the utility of spermatogenesis as an informative system in approaching fundamental questions relating to cellular differentiation and motility are examined.
Phylogenetic Relationships of the "Green Algae" and "Bryophytes"
This work presents synthetic cladistic analyses of the green plants that combine and compare available morphological and molecular data sets, especially ribosomal RNA gene sequences from the nucleus and the chloroplast.
Major transitions in the evolution of early land plants: a bryological perspective.
This paper reviews phylogenetic, developmental, anatomical, genetic and paleontological data with the aim of reconstructing the succession of events that shaped major land plant lineages and concludes that bryophytes are the key to a better understanding of the early evolution of land plants.
Phylogeny and diversification of bryophytes.
- J. Shaw, K. Renzaglia
- Biology, Environmental ScienceAmerican-Eurasian journal of botany
- 1 October 2004
This review focuses on phylogenetic relationships within each of the three divisions of bryophytes and relates morphological diversity to new insights about those relationships.
Exploding a myth: the capsule dehiscence mechanism and the function of pseudostomata in Sphagnum.
The novel functional data on Sphagnum suggest the possibility that stomata first appeared in land plants as structures that facilitated sporophyte drying out before spore discharge and only subsequently acquired their role in the regulation of gaseous exchange.
Progress and challenges toward developing a phylogeny and classification of the hornworts
Molecular phylogenetic analyses of hornworts were performed on a nucleotide data set consisting of mitochondrial nad5, chloroplast rbcL and nuclear 18S gene regions, confirming the relationships observed but also revealing a number of previously unrecognized yet highly supported clades.