The complete mitochondrial genome of Populus rotundifolia var. duclouxiana

Xiaolin Zhang; Chengzhong He; Dan Zong

doi:10.1080/23802359.2021.1972480

The complete mitochondrial genome of Populus rotundifolia var. duclouxiana

Mitochondrial DNA B Resour. 2021 Sep 6;6(10):2858-2859. doi: 10.1080/23802359.2021.1972480. eCollection 2021.

Authors

Xiaolin Zhang^{1

2}, Chengzhong He^{1

2

3}, Dan Zong^{1

2}

Affiliations

¹ Key Laboratory for Forest Genetic and Tree Improvement and Propagation in Universities of Yunnan Province, Southwest Forestry University, Kunming, China.
² Key Laboratory of Biodiversity Conservation in Southwest China, State Forestry Administration, Southwest Forestry University, Kunming, China.
³ Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming, China.

Abstract

The complete sequence of the circular mitochondrial (mt) DNA of Populus rotundifolia var. duclouxiana is presented in this study. The size of the P. rotundifolia var. duclouxiana mt genome was 775,549 bp and the GC content of the genome was 44.8%. The P. rotundifolia var. duclouxiana mt genome encoded 58 genes, including 33 protein-coding genes, 22 tRNA genes, and three rRNA genes. Among the 58 genes, three genes contained one intron, one gene contained three introns, and four genes contained four introns. Phylogenetic analysis using seven complete mt genomes of Salicaceae supported that P. rotundifolia var. duclouxiana is most closely related to P. davidiana.

Keywords: P. rotundifolia var. duclouxiana; mitochondrial genome; phylogenetic analysis.

Grants and funding

This work was supported by the National Natural Science Foundation of China under Grant Number [31860219].