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THE CHLOROPLAST GENOME OF THE GYMNOSPERM PINUS-CONTORTA - A PHYSICAL MAP AND A COMPLETE COLLECTION OF OVERLAPPING CLONES
Umeå University, Faculty of Science and Technology, Department of Plant Physiology. Umeå University, Faculty of Science and Technology, Umeå Plant Science Centre (UPSC).ORCID iD: 0000-0002-2147-7428
1991 (English)In: Current Genetics, ISSN 0172-8083, E-ISSN 1432-0983, Vol. 20, no 1-2, 161-166 p.Article in journal (Refereed) Published
Abstract [en]

Overlapping restriction fragments of chloroplast DNA from the conifer Pinus contorta were cloned. Out of a total of 49 clones, 33 comprise the minimum set required to represent the entire genome. Using the purified inserts of these clones as probes in filter hybridizations, all sites for the three restriction enzymes KpnI, HpaI and SacI in the P. contorta chloroplast genome were mapped. Heterologous filter hybridizations and sequence analysis of some of the P. contorta clones were used to determine the position of 15 genes on the restriction map. The size of the genome, which lacks an inverted repeat organization, was found to be approximately 121 kilobase pairs (kbp). Unusual features of this genome are a duplication of the psbA gene and the presence of two genes, gidA and frxC, which are not found in angiosperms. The genome appeared essentially colinear with that of Pinus radiata, for which a map has previously been published. Two different restriction fragment length polymorphisms were found to be produced by variable numbers of copies of 124 bp- and 150 bp-long, tandemly repeated elements.

Place, publisher, year, edition, pages
1991. Vol. 20, no 1-2, 161-166 p.
Identifiers
URN: urn:nbn:se:umu:diva-46852DOI: 10.1007/BF00312780ISI: A1991FY55300024OAI: oai:DiVA.org:umu-46852DiVA: diva2:456601
Available from: 2011-11-15 Created: 2011-09-16 Last updated: 2017-12-08

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Gustafsson, Petter

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