In order to clone the DNA repair gene of Aspergillus nidulans, uvsF$ sp-$ pyrG$ sp-$ strains were transformed with a genomic library in a plasmid vector that carried the pyr-4 gene of Neurospora which complements pyrG mutants of Aspergillus. Out of the several transformants obtained, four were like wild type. For rescuing plasmids, transformant DNA was digested with Bg/II and self ligated, and used for transformation of E. coli. Two types of plasmids were obtained; these two had a region in common ($<$1.0 kb) that was not a simple overlap and gave evidence for rearrangements. Surprisingly, only the plasmids with the larger insert of Aspergillus DNA were able to complement uvsF$ sp-$ in the secondary transformation. Northerns of polyA$ sp+$-enriched mRNA, probed with this plasmid, showed three bands. However, its subclone which spans the shared region hybridized to only one of them (1.0 kb). Two cDNA and five genomic clones were identified. The two cDNA clones though not identical, cross-hybridized. Three out of five genomic clones were identical. The cDNA hybridized to a short segment (2.2 kb) of one of the three types of genomic clones, locating the putative uvsF gene sequence.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:QMM.59577 |
| Date | January 1989 |
| Creators | Oza, Kalpesh |
| Publisher | McGill University |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | Electronic Thesis or Dissertation |
| Format | application/pdf |
| Coverage | Master of Science (Department of Biology.) |
| Rights | All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. |
| Relation | alephsysno: 001067149, proquestno: AAIMM63733, Theses scanned by UMI/ProQuest. |
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