Complete chloroplast genome of an endangered tree species, Toona ciliata (Sapindales: Meliaceae)

Gui-Liang Xin; Jia-Qian Liu; Jia Liu

doi:10.1080/23802359.2018.1476074

Complete chloroplast genome of an endangered tree species, Toona ciliata (Sapindales: Meliaceae)

Mitochondrial DNA B Resour. 2018 Jun 8;3(2):663-664. doi: 10.1080/23802359.2018.1476074.

Authors

Gui-Liang Xin¹, Jia-Qian Liu¹, Jia Liu¹

Affiliation

¹ Key Laboratory of Resource Biology and Biotechnology in Western China (Northwest University), Ministry of Education, School of Life Science, Northwest University, Xi'an, China.

Abstract

The whole cp genome of T. ciliata was 159,502 bp in length, containing a pair of inverted repeat (26,961 bp for each), a large single copy (87,199 bp) and a small single copy (18,381 bp) regions. The cp genome encoded 138 genes, including 89 protein-coding genes, 40 tRNA genes, 8 rRNA genes and 1 pseudogene. The nucleotide composition was asymmetric (30.7% A, 19.3% C, 18.6% G and 31.4% T) with an overall GC content of 37.9%. The maximum likelihood phylogenetic analysis based on 21 complete cp genome sequences showed that T. ciliata closely related to Azadirachta indica.

Keywords: Toona ciliate; chloroplast genome; endangered species; phylogenetic analysis.