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Home > Archive>Volume 19, Issue 6, 2018 >1187-1196. DOI:10.13430/j.cnki.jpgr.20180425001
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Chloroplast Genome and CP-SSR Site Analyses of Ulmus laciniata
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1Institute of Forest Biotechnology, Forestry College, Agricultural University of Hebei, Baoding 071000 ;2 Hebei Key Laboratory for Tree Genetic Resources and Forest Protection, Baoding 071000;,1Institute of Forest Biotechnology, Forestry College, Agricultural University of Hebei, Baoding 071000 ;2 Hebei Key Laboratory for Tree Genetic Resources and Forest Protection, Baoding 071000;,1Institute of Forest Biotechnology, Forestry College, Agricultural University of Hebei, Baoding 071000 ;3 Hebei Academy of Forestry,Shijiazhuang 050061,1Institute of Forest Biotechnology, Forestry College, Agricultural University of Hebei, Baoding 071000 ;2 Hebei Key Laboratory for Tree Genetic Resources and Forest Protection, Baoding 071000;,1Institute of Forest Biotechnology, Forestry College, Agricultural University of Hebei, Baoding 071000 ;2 Hebei Key Laboratory for Tree Genetic Resources and Forest Protection, Baoding 071000;,1Institute of Forest Biotechnology, Forestry College, Agricultural University of Hebei, Baoding 071000 ;2 Hebei Key Laboratory for Tree Genetic Resources and Forest Protection, Baoding 071000;,1Institute of Forest Biotechnology, Forestry College, Agricultural University of Hebei, Baoding 071000 ;2 Hebei Key Laboratory for Tree Genetic Resources and Forest Protection, Baoding 071000;

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    Abstract:

    Elm (Ulmus) has a long history of using as high-quality hard wood and could grow in temperate, warm temperate, and subtropical regions for its strong ability to resist adversity (drought, cold, and salt). This study performed De novo sequencing of the chloroplast genome of Ulmus laciniata. The lengths of the chloroplast genome of U. laciniata is 158,953 bp, containing four distinct regions: a pair of inverted repeat regions (IR) of 26,037 bp, large single-copy region (LSC) of 88,032 bp, and small single-copy region (SSC) of 18,846 bp. The chloroplast genomes had a GC content of 35.57% and consisted of a total of 139 genes. Among the genes, 85 were protein encoding genes, 8 were rRNA genes and 46 were tRNA genes. A total of 755 SSR loci were found that consisted by 49 repeating units in Ulmus laciniata chloroplast genomes, most of the perfect SSR sequences were based on short sequence lengths of 6 bp ~ 8 bp short sequence. The large proportion of SSR repeat units were A/T and AT/AT (499, 66.09%). The phylogenetic analysis of 42 species with common protein coding genes of chloroplast genomes was constructed. The results showed that U. laciniata was closely related to the plants of Cannabaceae and Moraceae, which belong to Urticales, and coincided with the traditional taxonomy. This study is report on Ulmus laciniata chloroplast genomes, which has significance for understanding photosynthesis, evolution, primer development and chloroplast transgenic engineering.

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History
  • Received:April 25,2018
  • Revised:June 02,2018
  • Adopted:June 15,2018
  • Online: November 14,2018
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