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Oligocene CO2 Decline Promoted C4 Photosynthesis in Grasses
Warming experiments underpredict plant phenological responses to climate change
Warming experiments underpredict advances in the timing of flowering and leafing by 8.5-fold and 4.0-fold, respectively, compared with long-term observations, which introduces uncertainty into ecosystem models that are informed solely by experiments and suggest that responses to climate change that are predicted using such models should be re-evaluated.
Exotic taxa less related to native species are more invasive.
Using a phylogenetic supertree of all grass species in California, it is shown that highly invasive grass species are, on average, significantly less related to native grasses than are introduced but noninvasive grasses.
Sympatric speciation in palms on an oceanic island
A large dated phylogenetic tree shows that the two species of Howea, endemic to the remote Lord Howe Island, are sister taxa and diverged from each other well after the island was formed 6.9 million years ago.
Land plants and DNA barcodes: short-term and long-term goals
An assessment of how well current phylogenetic resources might work in the context of identification (versus phylogeny reconstruction) with two of the markers commonly sequenced in land plant phylogenetic studies, plastid rbcL and internal transcribed spacers of the large subunits of nuclear ribosomal DNA (ITS), finds that both of these DNA regions perform well.
Phylogenetics of Miscanthus, Saccharum and related genera (Saccharinae, Andropogoneae, Poaceae) based on DNA sequences from ITS nuclear ribosomal DNA and plastid trnL intron and trnL-F intergenic
DNA sequences were used to assess the monophyly and inter-relationships of Miscanthus, Saccharum and related genera in theSaccharum complex, and the results indicate that Miscanthuss.s.l. and SacCharum s.
ecospat: an R package to support spatial analyses and modeling of species niches and distributions
The aim of the ecospat package is to make available novel tools and methods to support spatial analyses and modeling of species niches and distributions in a coherent workflow and stimulate the use of comprehensive approaches in spatial modelling of species and community distributions.
Nonredundant Regulation of Rice Arbuscular Mycorrhizal Symbiosis by Two Members of the PHOSPHATE TRANSPORTER1 Gene Family[W]
It is shown that 70% of the overall Pi acquired by rice (Oryza sativa) is delivered via the symbiotic route, and that mycorrhizal rice depends on the AM symbiosis to satisfy its Pi demands, which is mediated by a single functional Pi transporter, PT11.