Characterization of complete chloroplast genome of Malus sylvestris L

Yunfang Xu; Yujie Zhao; Xueqing Zhao; Xuesen Chen; Zhaohe Yuan

doi:10.1080/23802359.2019.1629352

Characterization of complete chloroplast genome of Malus sylvestris L

Mitochondrial DNA B Resour. 2019 Jul 12;4(2):2357-2358. doi: 10.1080/23802359.2019.1629352.

Authors

Yunfang Xu^{1

2}, Yujie Zhao^{1

2}, Xueqing Zhao^{1

2}, Xuesen Chen³, Zhaohe Yuan^{1

2}

Affiliations

¹ Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, China.
² College of Forestry, Nanjing Forestry University, Nanjing, China.
³ State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai'an, Shandong, China.

Abstract

The European wild apple (Malus sylvestris L.) is an important economical fruit crop. In this present study, we characterized the complete chloroplast (cp) genome sequence of Malus sylvestris L. The complete cp genome is 159,926 bp in length with a typical quadripartite structure, containing a large single-copy region (88,064 bp), a small single-copy region (26,353 bp) and a pair of inverted repeat regions (19,157 bp each). A total of 110 unique genes were found in the newly sequenced genome, including 78 protein-coding genes, 28 tRNA genes, and 4 rRNA genes. Of these, 6 protein-coding genes, 7 tRNA genes, and all 4 rRNA genes are duplicated in the inverted regions. A phylogenetic tree was reconstructed using the neighbor-joining method based on the full length of cp genomes within genus Malus. The result showed that M. sylvestris L. was clustered together with the cultivated apple. The complete cp genome could provide valuable information for understanding the phylogenetic relationships within the genus Malus.

Keywords: Malus sylvestris L; chloroplast genome; phylogenetic analysis; whole genome resequencing.