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A physical map of the sorghum chloroplast genome

Plant Molecular Biology volume 6, pages 119–123 (1986)Cite this article

Summary

The chloroplast genome of the IS1112C cytoplasm of sorghum was mapped by the construction of a Bam-HI library in pUC8, and hybridization with BamHI, SalI, and PstI digests of chloroplast DNA (ctDNA) of sorghum and maize. The molecules are extensively colinear, with only one of 13 SalI fragments differing slightly from maize. Seven of 70 restriction sites differed in the two species. A total molecular size of ca. 138 kb was estimated for sorghum. The inverted repeat was not conserved between sorghum and maize, as revealed by a slightly larger BamHI 16S rDNA fragment in sorghum. Homology of a sequence adjacent to the γbcl gene and one end of the inverted repeat was detected. These homologies were also observed in maize, and suggest that the ctDNA genomes of sorghum and maize share small reiterations of sequences of the inverted repeat.

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Affiliations

  1. Department of Plant Pathology, University of Florida, 32611, Gainesville, FL

    Loan H. Dang & Daryl R. Pring

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  1. Loan H. Dang
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  2. Daryl R. Pring
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Dang, L.H., Pring, D.R. A physical map of the sorghum chloroplast genome. Plant Mol Biol 6, 119–123 (1986). https://doi.org/10.1007/BF00027305

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  • DOI: https://doi.org/10.1007/BF00027305

Keywords

  • Sorghum
  • chloroplast DNA
  • maize