id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-343409-oao75pzy	Hayward, Joshua A	Identification of diverse full-length endogenous betaretroviruses in megabats and microbats	2013-03-27		.txt	text/plain	11603	554	50	As there were differences in the start position of this ORF in the various group VII bat βERVs (PvERV-βE -I), likely due to random mutation since integration, a nucleotide alignment of the region was generated (Additional file 1: Figure S2 ). To determine if the groupings we had assigned were congruent with known functional differences between retroviruses with respect to betaretroviral RNA nuclear export strategies, we analyzed the bat βERVs, alongside known exogenous and endogenous betaretroviruses, for evidence of motifs indicative of the major export strategies (Additional file 2: Table S4 ). We coupled our analysis of the genomic features of the bat βERVs with the phylogenetic patterns observed in the Gag, Pol, and Env trees (with primacy given to the phylogeny of the highly conserved polymerase sequences) to generate a hypothetical series of events that may have led to the current state of diversity in the genus Betaretrovirus ( Figure 5 ).	./cache/cord-343409-oao75pzy.txt	./txt/cord-343409-oao75pzy.txt