The complete chloroplast genome of Aster altaicus Willd. (Asteraceae: Aster) and phylogenetic analysis

Xin-You Wang; Ying Liu

doi:10.1080/23802359.2023.2238358

The complete chloroplast genome of Aster altaicus Willd. (Asteraceae: Aster) and phylogenetic analysis

Mitochondrial DNA B Resour. 2023 Aug 2;8(8):819-822. doi: 10.1080/23802359.2023.2238358. eCollection 2023.

Authors

Xin-You Wang¹, Ying Liu¹

Affiliation

¹ Qinghai Academy of Animal and Veterinary Sciences, Qinghai Provincial Key Laboratory of Adaptive Management on Alpine Grassland, Key Laboratory of Superior Forage Germplasm in the Qinghai-Tibetan Plateau, Qinghai University, Xining, China.

Abstract

Aster altaicus Willd. is an important medicinal plant and can also be used as a forage grass. To better understand the diversity and phylogeny between A. altaicus and other Aster species, we sequenced and annotated the complete chloroplast genome of A. altaicus by using the Illumina Hiseq 2500 platform. This complete chloroplast genome is 152,473 bp long and the GC content is 37.3% presented a negative AT-skew (-0.002) and a positive GC-skew (0.003). The genome contains a large single-copy region (LSC) of 84,235 bp, a small single-copy region (SSC) of 18,212 bp, which separated by a pair of inverted repeat regions (IRA and IRB) of 25,013 bp. Moreover, 129 genes were found in the chloroplast of A. altaicus, including 85 protein-coding genes (PCGs), 36 transfer RNA genes (tRNAs), 8 ribosomal RNA unit genes (rRNAs). Phylogenetic analysis showed that A. altaicus was more closely related to A. altaicus and A. altaicus var. uchiyamae. This study lays the foundation for further studies on the evolution and phylogeny of Aster.

Keywords: Aster altaicus willd; complete chloroplast genome; phylogenetic analysis.

Grants and funding

This work was supported by the National Key Project of the Ministry of Science and Technology of China (2021YFC3201603), scientific research project of "Qinghai Scholars" in Qinghai Province (A demonstration study on domestication and application of native ecological grass species in alpine region) and Qinghai innovation platform construction project (2023).