| Literature DB >> 1729687 |
R D Little1, G Pilia, S Johnson, M D'Urso, D Schlessinger.
Abstract
A successful test is reported to generate long-range contiguous coverage of DNA from a human cytogenetic band in overlapping yeast artificial chromosomes (YACs). Seed YACs in band Xq26 were recovered from a targeted library of clones from Xq24-q28 with 14 probes, including probes for the hypoxanthine guanine phosphoribosyltransferase- and coagulation factor IX-encoding genes and nine probes used in linkage mapping. Neighboring YACs were then identified by 25 "walking" steps with end-clones, and the content of 71 probes in cognate YACs was verified by further hybridization analyses. The resultant contig extends across 8 million base pairs, including most of band Xq26, with an order of markers consistent with linkage data. YAC-based mapping, thus, permits steps toward a fully integrated physical and genetic map and is probably adequate to sustain most of the human genome project.Entities:
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Year: 1992 PMID: 1729687 PMCID: PMC48199 DOI: 10.1073/pnas.89.1.177
Source DB: PubMed Journal: Proc Natl Acad Sci U S A ISSN: 0027-8424 Impact factor: 11.205