Results 11 to 20 of about 325,578 (303)

Dating the time of viral subtype divergence [PDF]

open access: yesBMC Evolutionary Biology, 2008
AbstractPrecise dating of viral subtype divergence enables researchers to correlate divergence with geographic and demographic occurrences. When historical data are absent (that is, the overwhelming majority), viral sequence sampling on a time scale commensurate with the rate of substitution permits the inference of the times of subtype divergence ...
O'Brien, John D   +2 more
openaire   +7 more sources

Dating Tips for Divergence-Time Estimation [PDF]

open access: yesTrends in Genetics, 2015
The molecular clock is the only viable means of establishing an accurate timescale for Life on Earth, but it remains reliant on a capricious fossil record for calibration. 'Tip-dating' promises a conceptual advance, integrating fossil species among their living relatives using molecular/morphological datasets and evolutionary models.
O'Reilly, Joseph E.   +2 more
openaire   +5 more sources

Fast algorithms for computing phylogenetic divergence time

open access: yesBMC Bioinformatics, 2017
Background The inference of species divergence time is a key step in most phylogenetic studies. Methods have been available for the last ten years to perform the inference, but the performance of the methods does not yet scale well to studies with ...
Ralph W. Crosby, Tiffani L. Williams
doaj   +2 more sources

New Insights Into the Backbone Phylogeny and Character Evolution of Corydalis (Papaveraceae) Based on Plastome Data

open access: yesFrontiers in Plant Science, 2022
A robust backbone phylogeny is fundamental for developing a stable classification and is instructive for further research. However, it was still not available for Corydalis DC., a species-rich (> 500 species), ecologically and medically important, but
Xiaodong Xu   +3 more
doaj   +1 more source

Molecular genetics and ecological divergence time study of the cone snail species in the Persian Gulf [PDF]

open access: yesIranian Journal of Animal Biosystematics, 2017
Marine gastropod genus' Conus diversified rapidly during the Miocene includes the most species-rich modern marine genus. The aim of this study is an expanded molecular phylogenetic analysis and divergence time of two dominant cone snail species from the ...
Halimeh Rajabi   +4 more
doaj   +1 more source

An Update on Trichoderma Mitogenomes: Complete De Novo Mitochondrial Genome of the Fungal Biocontrol Agent Trichoderma harzianum (Hypocreales, Sordariomycetes), an Ex-Neotype Strain CBS 226.95, and Tracing the Evolutionary Divergences of Mitogenomes in Trichoderma

open access: yesMicroorganisms, 2021
Members of the genus Trichoderma (Hypocreales), widely used as biofungicides, biofertilizers, and as model fungi for the industrial production of CAZymes, have actively been studied for the applications of their biological functions.
Yunyoung Kwak
doaj   +1 more source

exTREEmaTIME: a method for incorporating uncertainty into divergence time estimates. [PDF]

open access: yesBiol Open, 2022
We present a method of divergence time estimation (exTREEmaTIME) that aims to effectively account for uncertainty in divergence time estimates. The method requires a minimal set of assumptions, and, based on these assumptions, estimates the oldest ...
Carruthers T, Scotland RW.
europepmc   +2 more sources

Insight into Population Structure and Evolutionary Analysis of the Emerging Tomato Brown Rugose Fruit Virus

open access: yesPlants, 2022
A total of 112 symptomatic tomatoes (Solanum lycopersicum L.) and 83 symptomatic pepper (Capsicum spp.) samples were collected in Ankara, Eskişehir, Bartın, and Zonguldak provinces of Turkey during 2020–2021.
Ali Çelik   +4 more
doaj   +1 more source

On the origin of divergences in time-dependent orbifolds [PDF]

open access: yesThe European Physical Journal C, 2020
AbstractWe consider time-dependent orbifolds in String Theory and we show that divergences are not associated with a gravitational backreaction since they appear in the open string sector too. They are related to the non existence of the underlying effective field theory as in several cases fourth and higher order contact terms do not exist.
Arduino, Andrea   +2 more
openaire   +4 more sources

Molecular Evolution of Infectious Pancreatic Necrosis Virus in China

open access: yesViruses, 2021
Passive virus surveillance was performed in twenty-nine salmon and trout farms from seven provinces and districts in China during the period 2017–2020. A total of 25 infectious pancreatic necrosis virus (IPNV) isolates were obtained, mainly from rainbow ...
Kaiyue Duan   +8 more
doaj   +1 more source

Home - About - Disclaimer - Privacy