id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
work_vxg6hxarjrdg5ozffqevsvxsj4	Kristin N. Harper	On the Origin of the Treponematoses: A Phylogenetic Approach	2008	13	.pdf	application/pdf	10121	1046	63	Old World yaws-causing strains occupied a basal position on the tree, indicating that they arose first in Citation: Harper KN, Ocampo PS, Steiner BM, George RW, Silverman MS, et al. comparative studies have included very few non-venereal strains. recombination events between the strains sequenced in this study These regions contained 17 SNPs at which Old World nonvenereal strains differed from subsp. Old-World pertenue strains to a second group of African subsp. pertenue strains using the polymorphic data in this study (Fig. 3), The study of two yaws-causing strains from the Americas syphilis-causing strains identified in this study (Fig. 4). strains are genetically distinct from Old World subsp. pertenue strains, between Old World nonvenereal and subsp. relatives of syphilis-causing strains in this study were non-venereally pallidum strains occurred in just 2 genes: tprI and tp92. strains and New World subsp. pallidum and non-venereal treponemal strains. pallidum were yaws-causing strains from the New	./cache/work_vxg6hxarjrdg5ozffqevsvxsj4.pdf	./txt/work_vxg6hxarjrdg5ozffqevsvxsj4.txt