Characterization of the complete chloroplast genome of Elaeagnus mollis, a rare and endangered oil plant

• Published in: Conservation genetics resources Vol. 9; no. 3; pp. 439 - 442
• Main Authors: Wang, Wen-Cai, Chen, Si-Yun, Zhang, Xian-Zhi
• Format: Journal Article
• Language: English
• Published: Dordrecht Springer Netherlands 01.09.2017; Springer Nature B.V
• Subjects: Animal Genetics and Genomics; Biodiversity; Biomedical and Life Sciences; Cannabaceae; China; chloroplast genome; Chloroplasts; Conservation Biology/Ecology; Ecology; Elaeagnus; Endangered species; Endemic species; Evolutionary Biology; genes; Genomes; Life Sciences; Moraceae; oils; Plant Genetics and Genomics; Rare species; ribosomal RNA; rRNA; Technical Note; transfer RNA; trees; tRNA; China; Chloroplast genome; Conservation; Phylogenomics
• ISSN: 1877-7252; 1877-7260
• DOI: 10.1007/s12686-017-0706-4

Elaeagnus mollis is a rare and endangered oil tree species endemic to China. Here we assembled and characterized its whole chloroplast (cp) genome using Illumina pair-end sequencing data. The E. mollis cp genome was 151,428 bp in length, containing a large single copy region (LSC) of 81,003 bp and a small single copy region (SSC) of 18,561 bp separated by a pair of inverted repeats (IRs) of 25,932 bp. The genome possessed 131 genes, including 85 protein-coding genes, 38 tRNA genes, and 8 rRNA genes. Most of genes occurred as single-copy, while 18 gene species had two copies. The overall GC content of the E. mollis cp genome was 37.0%, and the corresponding values of LSC, SSC and IR regions were 35.0, 30.3 and 42.2%, respectively. The phylogenomic analysis revealed that E. mollis clustered with E. macrophylla in Elaeagnaceae, which was closely related to Moraceae and Cannabaceae belonging to Rosales.