Bottoli AP, Kertesz-Chaloupková K, Boulianne RP, Granado JD, Aebi M, Kües U. Rapid isolation of genes from an indexed genomic library of C. cinereus in a novel pab1+ cosmid.
J Microbiol Methods 1999;
35:129-41. [PMID:
10192045 DOI:
10.1016/s0167-7012(98)00109-2]
[Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In this study we present an indexed genomic library of homokaryon AmutBmut constructed within a novel cosmid carrying pab1+ as a selectable Coprinus marker. The average insert size per cosmid comprises 41 kb. We screened the library and detected copies of known (a1-2, beta-tub, cgl1, ras, trp1) and of new Coprinus genes (cac, lac1, lac2, lac3). Screening was performed either by Southern blot hybridisation or more efficiently by non-radioactive PCR amplification. We successfully applied PCR with specific and with degenerate primers, multiplex PCR and colony PCR in library screening. Our results suggest a new, more efficient pooling strategy for future high throughput screenings to be used in PCR with pooled cosmid DNAs, or in a less laborious approach using pooled Escherichia coli colonies for PCR.
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