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Perspectives on archaeal diversity, thermophily and monophyly from environmental rRNA sequences.
- S. Barns, C. Delwiche, J. Palmer, N. Pace
- BiologyProceedings of the National Academy of Sciences…
- 20 August 1996
Phylogenetic analysis of ribosomal RNA sequences obtained from uncultivated organisms of a hot spring in Yellowstone National Park reveals several novel groups of Archaea, many of which diverged from…
Phylogeny and Molecular Evolution of the Green Algae
Current understanding of organelle genome evolution in the green algae is summarized, genomic insights into the ecology of oceanic picoplanktonic prasinophytes, molecular mechanisms underlying the evolution of complexity in volvocine green algae, and the Evolution of genetic codes and the translational apparatus in green seaweeds are summarized.
The Closest Living Relatives of Land Plants
A four-gene phylogenetic analysis supports the hypothesis that the land plants are placed phylogenetically within the Charophyta, identifies the Charales (stoneworts) as the closest living relatives of plants, and shows the Coleochaetales as sister to this Charales/land plant assemblage.
A Plastid of Probable Green Algal Origin in Apicomplexan Parasites
Observations indicate that the Apicomplexa acquired a plastid by secondary endosymbiosis, probably from a green alga.
The tiny eukaryote Ostreococcus provides genomic insights into the paradox of plankton speciation
- B. Palenik, J. Grimwood, I. Grigoriev
- Biology, Environmental ScienceProceedings of the National Academy of Sciences
- 1 May 2007
It is speculated that this latter process may be involved in altering the cell-surface characteristics of each species, and selenoenzymes, novel fusion proteins, and loss of some major protein families including ones associated with chromatin are likely important adaptations for achieving a small cell size.
Tracing the Thread of Plastid Diversity through the Tapestry of Life
- C. Delwiche
- BiologyThe American Naturalist
- 1 October 1999
The eukaryotic crown group Alveolata has a particularly complex history of plastid acquisition, and may or may not be descended from a single endosymbiotic event.
Rampant horizontal transfer and duplication of rubisco genes in eubacteria and plastids.
The rbcL phylogeny reveals a surprising number of gene relationships that are fundamentally incongruent with organismal relationships as inferred from multiple lines of other molecular evidence, suggesting that the rubisco operon has undergone multiple events of both horizontal gene transfer and gene duplication in different lineages.
Conserved and Diversified Gene Families of Monovalent Cation/H+ Antiporters from Algae to Flowering Plants
- Salil Chanroj, Guoying Wang, K. Venema, Muren Warren Zhang, C. Delwiche, H. Sze
- Biology, Environmental ScienceFront. Plant Sci.
- 14 February 2012
KEA genes are conserved from green algae to angiosperms, and their presence in red algae and secondary endosymbionts suggest a role in plastids, while the great diversity of CHX genes in land plants compared to metazoa, fungi, or algae would imply a significant role of ion and pH homeostasis at dynamic endomembranes in the vegetative and reproductive success of flowering plants.
High carbon dioxide and sun/shade effects on isoprene emission from oak and aspen tree leaves
Abstract. Isoprene (2-methyl 1, 3-butadiene) is emitted from many plants, especially trees. We tested the effect of growth at high CO2 partial pressure and sun versus shade conditions on the capacity…
Origin of strigolactones in the green lineage.
It is suggested that the strigolactones appeared earlier in the streptophyte lineage to control rhizoid elongation and may have been conserved in basal Embryophytes for this role and then recruited for the stimulation of colonization by glomeromycotan fungi.