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Phylogeny and classification of Rosaceae
TLDR
Strong support for monophyly of groups corresponding closely to many previously recognized tribes and subfamilies is found, but no previous classification was entirely supported, and relationships among the strongly supported clades were weakly resolved and/or conflicted between some data sets.
The Phylogeny of Rosoideae (Rosaceae) Based on Sequences of the Internal Transcribed Spacers (ITS) of Nuclear Ribosomal DNA and the trnL/F Region of Chloroplast DNA
TLDR
The phylogeny of Rosoideae was investigated using 44 species using new sequence data from the chloroplast trnL/F region as well as an increased sample of species, and the monophyly of both Potentilleae and Sanguisorbeae is well supported.
Time Tree of Rubiaceae: Phylogeny and Dating the Family, Subfamilies, and Tribes
TLDR
This study estimated the phylogeny for 534 Rubiaceae taxa from 329 genera with up to five different chloroplast regions by Bayesian analysis, resulting in a highly resolved tree with many strongly supported nodes.
Assessing calibration uncertainty in molecular dating: the assignment of fossils to alternative calibration points.
TLDR
A recently developed fossil cross-validation method is expanded on to evaluate whether alternative nodal assignments of multiple fossils produce calibration sets that differ in their internal consistency, finding that a correlation exists between s values, devised to measure the consistency among the calibration points of a calibration set, and nodal distances among calibration points.
EARLY TERTIARY OUT-OF-INDIA DISPERSAL OF CRYPTERONIACEAE: EVIDENCE FROM PHYLOGENY AND MOLECULAR DATING
TLDR
Crypteroniaceae are the first plant group for which the out-of-India hypothesis is well corroborated by molecular-based estimates of divergence times and are also the first to be identified as a sister to a clade formed by three small African taxa.
Species names in phylogenetic nomenclature.
TLDR
Here, 13 methods for naming species in the context of phylogenetic nomenclature are contrasted with each other and with Linnaean binomials and a fundamental dichotomy among the proposed methods distinguishes those that retain the entire binomial of a preexisting species name fromThose that retain only the specific epithet.
Phylogeny of symbiotic cyanobacteria within the genus Nostoc based on 16S rDNA sequence analyses
TLDR
A phylogenetic analysis of selected symbiotic Nostoc strain sequences and available database 16S rDNA sequences of both symbiotic and free-living cyanobacteria was carried out using maximum likelihood and Bayesian inference techniques, verifying that hormogonia formation is not absent in Anabaena and cannot be used as a criterion to distinguish it from Nostoc.
Feed analyses and digestion methods
Feed characteristics are determined via chemical analyses and digestion methods. SpecificNorFor methods for determining parameters such as DM, sCP, iNDF and the in sacco methods are fully described
Biodiversity and seasonal variation of the cyanobacterial assemblage in a rice paddy field in Fujian, China.
TLDR
The number of cyanobacterial phylotypes showed a seasonal variation and reached a peak in September, both in the upper and deeper soil fractions, while some cyanob bacterial sequences were only present during the rice growth season, while others were only found after harvest.
Phylogenetic analysis ofPotentilla using DNA sequences of nuclear ribosomal internal transcribed spacers (ITS), and implications for the classification ofRosoideae (Rosaceae)
TLDR
It is suggested that in order to minimise nomenclatural change and to name only well supported clades, Potentilla should be split into several genera, while other previously recognised genera such as Duchesnea, Horkelia, andIvesia are best included inPotentilla.
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