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The RI strain set has been used for linkage and association studies to identify quantitative trait loci for numerous cardiovascular phenotypes, including arterial pressure, stress-elicited heart rate, and pressor response, and metabolic traits, including insulin resistance, dyslipidemia and glucose handling, and left ventricular hypertrophy. The strain's utility has been enhanced with development of a new framework marker-based map and strain distribution patterns of polymorphic markers. Quantitative trait loci for behavioral traits mapped include loci for startle motor response and habituation, anxiety and locomotion traits associated with elevated plus maze, and conditioned taste aversion. The polydactyly-luxate syndrome Lx mutation has allowed the study of alleles important to limb development and malformation phenotypes as well as teratogens. The RI strains have guided development of numerous congenic strains to test locus assignments and to study the effect of genetic background. Although these strains were originally developed to aid in studies of rat genetic hypertension and morphogenetic abnormalities, this rodent platform has been shown to be equally powerful for a wide spectrum of traits and endophenotypes. These strains provide a ready and available vehicle for many physiological and pharmacological studies.<\/jats:p>","DOI":"10.1152\/japplphysiol.00064.2003","type":"journal-article","created":{"date-parts":[[2015,3,3]],"date-time":"2015-03-03T20:45:23Z","timestamp":1425415523000},"page":"2510-2522","source":"Crossref","is-referenced-by-count":69,"title":["Invited Review: HXB\/BXH rat recombinant inbred strain platform: a newly enhanced tool for cardiovascular, behavioral, and developmental genetics and genomics"],"prefix":"10.1152","volume":"94","author":[{"given":"Morton P.","family":"Printz","sequence":"first","affiliation":[{"name":"Department of Pharmacology, University of California San Diego, La Jolla, California 92093-0636;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Martin","family":"Jirout","sequence":"additional","affiliation":[{"name":"Department of Pharmacology, University of California San Diego, La Jolla, California 92093-0636;"},{"name":"Institute of 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