Open Access

ARTICLE

Mitochondrial Genome Analysis of Myricaria laxiflora, a Protected Endangered Plant

Chaoying Wang¹, Lihui Ma², Yingzan Xie², Bo Ding³, Jingsi Huang⁴, Qian Wang^4,*

1 School of Culture and Tourism, Chongqing City Management College, Chongqing, 401331, China
2 Chongqing Urban Ecosystem National Positioning Observation and Research Station, Chongqing Academy of Forestry Sciences, Chongqing, 400036, China
3 College of Agronomy and Biotechnology, Southwest University, Chongqing, 400715, China
4 Key Laboratory of Eco-Environments in the Three Gorges Reservoir Region (Ministry of Education), School of Life Sciences, Southwest University, Chongqing, 400715, China

* Corresponding Author: Qian Wang. Email:

Phyton-International Journal of Experimental Botany 2024, 93(8), 1981-1993. https://doi.org/10.32604/phyton.2024.050099

Received 27 January 2024; Accepted 10 July 2024; Issue published 30 August 2024

Abstract

Myricaria laxiflora, which grows along the Yangtze River in China, holds ornamental, ecological, and medicinal value. However, its wild population is threatened and currently designated protected as a national priority. The present research was the first to sequence and assemble M. laxiflora’s mitochondrial genome and examine its structural characteristics and phylogenetic relationships with other sequenced Caryophyllales species. The mitochondrial double-stranded closed-ring genome of M. laxiflora was found to be 389,949 bp in length, containing numerous repetitive sequences and RNA editing sites, with 34 protein encoding, 21 tRNA, and 3 rRNA genes. Although there are 22 fragments in the mitochondrial genome of M. laxiflora that are homologous to its chloroplast genome, they are incomplete gene fragments. Phylogenetic analysis demonstrated evolutionary associations with related populations and was in agreement with findings on the chloroplast genome. These findings not only lay a foundation for its preservation but also offer valuable insights for evolutionary analysis and plant breeding research.

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Keywords

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Supplementary Material

Supplementary Material File

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