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Phylogenetic relationships among ascomycetes: evidence from an RNA polymerse II subunit.
Findings show that a slowly evolving protein-coding gene such as RPB2 is useful for diagnosing phylogenetic relationships among fungi, and suggests that fruiting body formation and forcible discharge of ascospores were characters gained early in the evolution of the Ascomycota. Expand
Codon selection in yeast.
Extreme codon bias is seen for the Saccharomyces cerevisiae genes for the fermentative alcohol dehydrogenase isozyme I (ADH-I) and glyceraldehyde-3-phosphate dehydrogenased genes and a similar phenomenon is observed in the codon preferences of highly expressed genes in Escherichia coli. Expand
Using RPB1 sequences to improve phylogenetic inference among mushrooms (Inocybe, Agaricales).
- P. Matheny, Yajuan J Liu, J. Ammirati, B. Hall
- Biology, Medicine
- American journal of botany
- 1 April 2002
This multigene study indicates that Inocy be is a monophyletic group composed of at least four distinct lineages-subgenus Mallocybe, section Cervicolores, section Rimosae, and subgenus Inocybe sensu Kühner, Kuyper, non Singer. Expand
Synthesis and assembly of hepatitis B virus surface antigen particles in yeast
The surface antigen of hepatitis B virus (HBsAg) has been synthesized in the yeast Saccharomyces cerevisiae by using an expression vector that employs the 5′-flanking region of yeast alcohol… Expand
Phylogeny, historical biogeography, and patterns of diversification for Pinus (Pinaceae): phylogenetic tests of fossil-based hypotheses.
Pines comprise one of the largest coniferous genera, are distributed throughout the Northern Hemisphere, and have an abundant fossil record, which postulates a Mesozoic origin for the genus, east-west expansions across Laurasia, and retraction into Eocene refugia. Expand
Body plan evolution of ascomycetes, as inferred from an RNA polymerase II phylogeny.
The RPB2 phylogeny shows with significant statistical support that taxa in Pezizomycotina with ascohymenial ontogeny (ascoma generally forms after nuclear pairing) are ancestral and paraphyletic, whereas ascolocular fungi with fissitunicate asci are a clade derived from them. Expand
Usefulness of RNA polymerase II coding sequences for estimation of green plant phylogeny.
This pilot study PCR-amplified and sequenced the genes encoding the second largest subunit of RNA polymerase II (RPB2) from nine taxa representing tricolpate, monosulcate, and eudicot angiosperm lineages to determine the feasibility of recovering the RPB2 gene from any green plant using a single set of PCR primers and performed a preliminary evaluation of the potential phylogenetic utility of RPB 2 sequences. Expand
The sequence of the DNAs coding for the mating-type loci of saccharomyces cerevisiae
- C. Astell, Lena Ahlstrom-Jonasson, Michael B. Smith, K. Tatchell, K. Nasmyth, B. Hall
- Biology, Medicine
- 1 November 1981
Polymorphic forms of the homologous outer segments of the HML alpha, MATalpha, MATa and HMRa sequences suggest that the boundaries of the segments involved in mating-type switching are immediately adjacent to the a-specific and alpha-specific sequences. Expand
The origin of red algae: implications for plastid evolution.
Phylogenetic analyses provide strong statistical support for an early evolutionary emergence of the Rhodophyta that preceded the origin of the line that led to plants, animals, and fungi, and argue for a reexamination of current models of plastid evolution. Expand
A Multistep Process Gave Rise to RNA Polymerase IV of Land Plants
The results show the genesis of RNAP IV to be a multistep process in which the largest and second-largest subunit genes evolved by independent duplication events in the ancestors of Charales and land plants. Expand