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Regular ArticlePARSIMONY JACKKNIFING OUTPERFORMS NEIGHBOR-JOINING
TLDR
Parsimony jackknifing is hundreds of thousands of times faster than extensive branch-swapping, yet is better able to screen out poorly-supported groups.
A phylogenetic analysis of the Orchidaceae: evidence from rbcL nucleotide.
TLDR
RbcL fails to provide strong support for the interrelationships of the subfamilies of the Orchidaceae, and the cladograms presented here should serve as a standard to which future morphological and molecular studies can be compared.
Polyploidy and angiosperm diversification.
TLDR
Comparisons of diversification rates suggest that genome doubling may have led to a dramatic increase in species richness in several angiosperm lineages, including Poaceae, Solanaceae, Fabaceae, and Brassicaceae, but additional genomic studies are needed to pinpoint the exact phylogenetic placement of the ancient polyploidy events within these lineages.
The Selaginella Genome Identifies Genetic Changes Associated with the Evolution of Vascular Plants
TLDR
The genome sequence of the lycophyte Selaginella moellendorffii (Selaginella), the first nonseed vascular plant genome reported, is reported, finding that the transition from a gametophytes- to a sporophyte-dominated life cycle required far fewer new genes than the Transition from a non Seed vascular to a flowering plant.
Phylogeny and classification of Oleaceae based on rps16 and trnL-F sequence data.
TLDR
The two debated genera Dimetra and Nyctanthes are shown to belong to Oleaceae, sister to the hitherto genus incertae sedis Myxopyrum, and a new classification of the subfamily Jasminoideae is presented.
Phylogenetics of the slipper orchids (Cypripedioideae, Orchidaceae): Nuclear rDNA ITS sequences
TLDR
A survey of karyotypes in the context of the ITS tree reveals a general trend toward increased chromosome number, probably brought about by centric fission, which accord with a previously suggested biogeographic hypothesis of a widespread Northern Hemisphere distribution, followed by range fragmentation due to Miocene cooling.
A TCP domain transcription factor controls flower type specification along the radial axis of the Gerbera (Asteraceae) inflorescence
TLDR
Both expression patterns and transgenic phenotypes suggest that GhCYC2 is involved in differentiation among Gerbera flower types, providing the first molecular evidence that CYC-like TCP factors take part in defining the complex inflorescence structure of the Asteraceae, a major determinant of the family's evolutionary success.
Phylogeny and diversification of B-function MADS-box genes in angiosperms: evolutionary and functional implications of a 260-million-year-old duplication.
TLDR
The earliest angiosperms may have been biochemically flexible in their B function and "tinkered" with floral organ identity and well before the oldest angiosperm fossils.
Architecture and evolution of a minute plant genome
TLDR
The compressed architecture of the U. gibba genome indicates that a small fraction of intergenic DNA, with few or no active retrotransposons, is sufficient to regulate and integrate all the processes required for the development and reproduction of a complex organism.
Phylogenetics of the Cotton Genus (Gossypium): Character-State Weighted Parsimony Analysis of Chloroplast-DNA Restriction Site Data and Its Systematic and Biogeographic Implications
TLDR
The maternal phylogenetic hypothesis and area cladogram suggest that Gossypium originated in either Africa or Australia, and the possibility that New World allopolyploids originated following a trans-Pacific transfer of an ancestral A-genome taxon to the Pacific coast of Mesoamerica or South America.
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