id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-343918-5yk1j4ms	Gorbalenya, A.E.	Phylogeny of Viruses	2008-07-30		.txt	text/plain	3892	182	40	For inferring phylogeny, the differences between aligned sequences of genomes and proteins are quantified and depicted in the form of a tree, in which contemporary species and their intermediate and common ancestors occupy, respectively, the terminal nodes, internal nodes, and the root. Phylogenetic analysis is used in a wide range of studies to address both applied and fundamental issues of virus research, including epidemiology, diagnostics, forensic studies, phylogeography, origin, evolution, and taxonomy of viruses. With the latter virus, poor sampling of the coronavirus diversity in the SARS-CoV lineage at the time, some uncertainty over the relationship between phylogeny and taxonomy of coronaviruses, and the complexity of phylogenetic analysis of a virus data set including isolated distant lineages led to considerable controversy over the exact evolutionary position of SARS-CoV among coronaviruses.	./cache/cord-343918-5yk1j4ms.txt	./txt/cord-343918-5yk1j4ms.txt