Characterization of Chloroplast Genome of Syringa reticulata subsp.pekinensis
In order to analyze the chloroplast genome characteristics of Syringa pekinensis,this study analyzed the chloroplast genome structure and gene composition characteristics,and combined with 35 other Oleaceae species and 2 Paulownia species for phylogenetic analysis.The results are as follows.(1)The plastid genome of S.pekinensis encodes 131 genes,including 36 tRNA genes,8 rRNA genes and 87 mRNA genes,accounting for 27.48%,6.11%and 66.41%of all annotated genes,respectively.(2)In the codon composition of the chloro-plast genome,there were 30 codons with RSCU value>1 and 31 codons with RSCU value<1,and the codons had the preference of ending with G and C.(3)A total of 178 forward repeats and 177 palindromic repeats were identified in the plastid genome of S.pekinensis.(4)The NJ phylogenetic tree showed that the genetic re-lationship between S.pekinensis and S.reticulata was close,and the genetic relationship between Syringa and Ligustrum was close.
Syringa pekinensisOleaceaeplastidphylogenetic tree
万方数据
维普
