evolutionary tree


Also found in: Medical.

evolutionary tree

[‚ev·ə¦lü·shə‚ner·ē ′trē]
(evolution)
A diagram that portrays the hypothesized genealogical ties and sequence of evolutionary relationships linking individual organisms, populations, or taxa. Also known as phylogenetic tree.
A diagram that depicts the evolutionary relationship of protein or nucleic acid sequences.
References in periodicals archive ?
Surprisingly, the evolutionary tree is more a single vine (bold font) with a few small branches (fine font offshoots) than the old tree with many large branches.
The oldest fossils of a previously unknown ancient leopard species are shaking the pantherine evolutionary tree, suggesting that big cats arose in Asia, not Africa, according to a new study.
Discovery of this new species was a shock to us because prior to this, the fossil record suggested that the evolutionary tree of platypuses was a relatively linear one," Archer explained.
The research estimated that the evolutionary tree split that led to horses on one branch and donkeys on the other happened about 4 million years ago.
Thousands of microRNAs have been identified in species up and down the evolutionary tree since their initial discovery in worms nearly 20 years ago, suggesting they play a fundamental role in the cell's regulatory machinery.
Our ability to learn by observation has been hardwired into our nervous system many branches back on our evolutionary tree.
A phylogeny is an evolutionary tree reconstructed from its leaves (each of which represents a different species) by comparing DNA sequences or gene data with a plausible model of evolution.
After background chapters on important algorithms, general-purpose graphic processors, and massively threaded programming and reconfigurable computing with field-programmable gate arrays, researchers in the field present recent approaches to parallelize bioinformatics applications on a variety of parallel architectures, including pairwise and multiple sequence alignment, the basic local alignment search tool, motif finding, pattern matching, sequence assembly, hidden Markov models, proteomics, and evolutionary tree reconstruction.
They were not ancestors of people living today, but represented a "dead end" branch of the human evolutionary tree.
Ever-more complex life forms emerged rapidly from there, eventually creating an evolutionary tree with homo sapiens atop one of its branches.
The European samples were concentrated around the base of the evolutionary tree.
Much of this information is neatly illustrated in an accurate and comprehensive figure of the spider evolutionary tree.