The complete chloroplast genome of Echinochloa haploclada

Bowen Jiang; Sangting Lao; Dongya Wu; Longjiang Fan; Chu-Yu Ye

doi:10.1080/23802359.2021.1982654

The complete chloroplast genome of Echinochloa haploclada

Mitochondrial DNA B Resour. 2021 Sep 30;6(11):3105-3106. doi: 10.1080/23802359.2021.1982654. eCollection 2021.

Authors

Bowen Jiang¹, Sangting Lao¹, Dongya Wu¹, Longjiang Fan¹, Chu-Yu Ye¹

Affiliation

¹ Institute of Crop Sciences, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China.

Abstract

The genus Echinochloa (Poaceae) includes orphan crops and important agricultural weeds. Here, we assembled the complete chloroplast genome of a diploid Echinochloa species (E. haploclada). The chloroplast genome is 139,844 bp in length, which includes a large single copy region (81,893 bp), a small single copy region (12,533 bp) and two separated inverted repeat regions (45,418 bp). A total of 119 unique genes were annotated, consisting of 83 protein-coding genes, 32 tRNA genes and 4 rRNA genes. Hexaploid E. crus-galli, one of the most serious weeds worldwide, was derived from a hybrid between tetraploid E. oryzicola and an unknown diploid species. Based on chloroplast genomes of eight Echinochloa species (varieties), the phylogenetic analysis showed that E. crus-galli clustered firstly with diploid E. haploclada rather than tetraploid E. oryzicola, supporting previous assumption that E. oryzicola is the paternal donor of E. crus-galli.

Keywords: Chloroplast genome; Echinochloa crus-galli; Echinochloa haploclada; weed.

Grants and funding

This work was supported by Zhejiang University K.P. Chao’s High Technology Development Foundation, the National Natural Science Foundation of China [31901899], the Jiangsu Collaborative Innovation Center for Modern Crop Production, and the Innovation Method Project of China [2018IM0301002].