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    The Complete Sequence of the Acacia ligulata Chloroplast Genome Reveals a Highly Divergent clpP1 Gene.

    234800_234800.pdf (4.878Mb)
    Access Status
    Open access
    Authors
    Williams, A.
    Boykin, L.
    Howell, K.
    Nevill, Paul
    Small, I.
    Date
    2015
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Williams, A. and Boykin, L. and Howell, K. and Nevill, P. and Small, I. 2015. The Complete Sequence of the Acacia ligulata Chloroplast Genome Reveals a Highly Divergent clpP1 Gene. PLoS One. 10 (5): pp. e0125768.
    Source Title
    PLoS One
    DOI
    10.1371/journal.pone.0125768
    School
    Department of Environment and Agriculture
    Remarks

    This open access article is distributed under the Creative Commons license http://creativecommons.org/licenses/by/4.0/

    URI
    http://hdl.handle.net/20.500.11937/4234
    Collection
    • Curtin Research Publications
    Abstract

    Legumes are a highly diverse angiosperm family that include many agriculturally important species. To date, 21 complete chloroplast genomes have been sequenced from legume crops confined to the Papilionoideae subfamily. Here we report the first chloroplast genome from the Mimosoideae, Acacia ligulata, and compare it to the previously sequenced legume genomes. The A. ligulata chloroplast genome is 158,724 bp in size, comprising inverted repeats of 25,925 bp and single-copy regions of 88,576 bp and 18,298 bp. Acacia ligulata lacks the inversion present in many of the Papilionoideae, but is not otherwise significantly different in terms of gene and repeat content. The key feature is its highly divergent clpP1 gene, normally considered essential in chloroplast genomes. In A. ligulata, although transcribed and spliced, it probably encodes a catalytically inactive protein. This study provides a significant resource for further genetic research into Acacia and the Mimosoideae. The divergent clpP1 gene suggests that Acacia will provide an interesting source of information on the evolution and functional diversity of the chloroplast Clp protease complex.

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