منابع مشابه
Branch lengths and support.
Although technical definitions exist for various support metrics, the notion of support per se has received little explicit attention. Thus, despite its widespread use in phylogenetics, “support” is absent from the glossaries and/or indices of several recent texts (e.g., Kitching et al., 1998; Page and Holmes, 1998; Schuh, 2001). Farris et al. (2001) recently argued that interpreting branch len...
متن کاملBranch lengths, support, and congruence: testing the phylogenomic approach with 20 nuclear loci in snakes.
Many authors have claimed that short branches in the Tree of Life will be very difficult to resolve with strong support, even with the large multilocus data sets now made possible by genomic resources. Short branches may be especially problematic because the underlying gene trees are expected to have discordant phylogenetic histories when the time between branching events is very short. Althoug...
متن کاملTree split probabilities determine the branch lengths
The evolution of aligned DNA sequence sites is generally modeled by a Markov process operating along the edges of a phylogenetic tree. It is well known that the probability distribution on the site patterns at the tips of the tree determines the tree and its branch lengths. However, the number of patterns is typically much larger than the number of edges, suggesting considerable redundancy in t...
متن کاملBranch support
The dolphin mystique. Throughout the ages, an enduring mystique has developed around dolphins. Even today some people continue to impute dolphins with mystical abilities such as extra-sensory perception and, in alternative medicine circles, special healing powers. An entire industry in ‘dolphinassisted therapy’ has been founded on the idea that dolphins have the capacity to heal illnesses throu...
متن کاملThe devil in the details: interactions between the branch-length prior and likelihood model affect node support and branch lengths in the phylogeny of the Psoraceae.
In popular use of Bayesian phylogenetics, a default branch-length prior is almost universally applied without knowing how a different prior would have affected the outcome. We performed Bayesian and maximum likelihood (ML) inference of phylogeny based on empirical nucleotide sequence data from a family of lichenized ascomycetes, the Psoraceae, the morphological delimitation of which has been co...
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ژورنال
عنوان ژورنال: Systematic Biology
سال: 2003
ISSN: 1063-5157,1076-836X
DOI: 10.1080/10635150390132939