Complete mitochondrial genome of a DHA-rich protist Schizochytrium sp. TIO1101

Zhaokai Wang; Sulin Lou; Fan Hu; Peng Wu; Longhe Yang; Huanqin Li; Lijuan He; Xiangzhi Lin

doi:10.1080/23802359.2016.1144090

Complete mitochondrial genome of a DHA-rich protist Schizochytrium sp. TIO1101

Mitochondrial DNA B Resour. 2016 Mar 28;1(1):126-127. doi: 10.1080/23802359.2016.1144090.

Authors

Zhaokai Wang¹, Sulin Lou¹, Fan Hu¹, Peng Wu¹, Longhe Yang¹, Huanqin Li¹, Lijuan He¹, Xiangzhi Lin¹

Affiliation

¹ Engineering Research Center of Marine Biological Resource Comprehensive Utilization, Third Institute of Oceanography, State Oceanic Administration, Xiamen, China.

Abstract

Schizochytrium sp. TIO1101 is a crucial commercial alga used to produce docosahexaenoic acid (DHA), a long-chain polyunsaturated fatty acid that is beneficial for human health. In this study, we sequenced the mitochondrial genome (mitogenome) of Schizochytrium sp. TIO1101 for the first time using an Illumina HiSeq 2500 system (Illumina Inc., San Deigo, CA). The assembled mitogenome was 31 494 bp long with 33.92% GC content. The mitogenome contains 56 genes, including 33 protein-coding genes, 21 transfer RNA genes and two ribosomal RNA genes. Maximum-likelihood phylogenetic analysis of Schizochytrium sp. TIO1101 showed that it was most closely related to Thraustochytrium aureum among the examined species.

Keywords: DHA; Schizochytrium sp. TIO1101; mitogenome; phylogeny; sequencing.