The complete chloroplast genome of Echinochloa haploclada

作者：Bowen Jiang, Sangting Lao, Dongya Wu, Longjiang Fan, Chuyu Ye · 发表于：Mitochondrial DNA Part B · 年份：2021 · DOI：10.1080/23802359.2021.1982654 · 被引用次数：4 · 研究领域：Genomics and Phylogenetic Studies、Chromosomal and Genetic Variations、Plant Disease Resistance and Genetics

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.