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Natural clades differ from “random” clades: simulations and analyses

Paleobiology, 1981
Using computer simulations and analytic calculations, we have evaluated whether conspicuous expansions and contractions of natural clades may have represented chance fluctuations that occurred while probabilities of speciation and extinction remained equal and constant.
Philip W. Signor   +3 more
openaire   +2 more sources

Molecular Evidence for a Clade of Turtles

Molecular Phylogenetics and Evolution, 1999
Although turtles have been generally grouped with the most primitive reptile species, the origin and phylogenetic relationships of turtles have remained unresolved to date. To confirm the phylogenetic position of turtles in amniotes, we have cloned and determined the cDNA sequences encoding for skink lactate dehydrogenase (LDH)-A and LDH-B, snake LDH-A,
Hideyuki Mannen   +2 more
openaire   +2 more sources

Clade X: A Pandemic Exercise

Health Security, 2019
Clade X was a day-long pandemic tabletop exercise conducted by the Johns Hopkins Center for Health Security on May 15, 2018, in Washington, DC. In this report, we briefly describe the exercise development process and focus principally on the findings and recommendations that arose from this project.
Amesh A. Adalja   +11 more
openaire   +2 more sources

Clade survey

Proceedings of the 6th international workshop on Challenges of large applications in distributed environments, 2008
Now in its sixth year, Challenges of Large Applications in Distributed Environments (CLADE) has sought to encourage innovation in addressing the complex issues that arise in large-scale applications of distributed computation. Focus areas have included scheduling and mapping, data management and workflows as well as applications and infrastructure ...
openaire   +2 more sources

ON CONSENSUS, COLLAPSIBILITY, AND CLADE CONCORDANCE

Cladistics, 1996
Abstract — Consensus in cladistics is reviewed. Consensus trees, which summarize the agreement in grouping among a set of cladograms, are distinguished from compromise trees, which may contain groups that do not appear in all the cladograms being compared. Only a strict or Nelson tree is an actual consensus.
James M. Carpenter, Kevin C. Nixon
openaire   +3 more sources

Clades in Heleophrynid Salientia

African Journal of Herpetology, 2008
A northern and a southern clade is recognized in the Heleophrynidae, a family of southern African Salientia. A new genus, Hadromophryne is proposed for Heleoprhyne natalensis, and related Anura presently included in this species.
openaire   +2 more sources

Vertebrate Clade Race

2020
This activity introduces basic tree reading skills for evolutionary phylogenies. It is designed as a short group activity. After completing this activity, students should be familiar with basic terminology and how to "read" a phylogenetic tree.
Kristin Jenkins, David A. Baum
openaire   +2 more sources

Identification of cross-clade CTL epitopes in HIV-1 clade A/E-infected individuals by using the clade B overlapping peptides

Microbes and Infection, 2013
Identification of cross-clade T cell epitopes is one of key factors for the development of a widely applicable AIDS vaccine. We here investigated cross-clade CD8(+) T cell responses between clade B and A/E viruses in chronically HIV-1 clade A/E-infected Japanese individuals.
Koji Watanabe   +7 more
openaire   +3 more sources

Origin of arthropods and of the clades of Ecdysozoa

Russian Journal of Developmental Biology, 2013
The problem of the origin of the phylum Arthropoda was long considered solved based on evolutionary morphology data. But molecular biological studies of recent years have put forward a new solution that contradicts the old one. Hence, the need arises to review the argumentation of both sides and search for ways to reach a consensus.
openaire   +3 more sources

Major clades in tropical Agaricus

Fungal Diversity, 2011
Agaricus (Basidiomycota) is a genus of saprobic fungi that includes edible cultivated species such as Agaricus bisporus, the button mushroom. There has been considerable ecological, nutritional and medicinal interest in the genus, yet the extent of its diversity remains poorly known, particularly in subtropical and tropical areas.
Olivier Raspé   +13 more
openaire   +4 more sources

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