期刊
MITOCHONDRIAL DNA PART B-RESOURCES
卷 6, 期 9, 页码 2714-2716出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/23802359.2021.1966341
关键词
Kohlrabi; mitochondrial genome; genome structure; phylogenetic analysis
资金
- Key Research and Transformation Plan of Qinghai Provincial Science and Technology Department [2021-NK-124]
- Qinghai Natural Science Foundation [2020-ZJ-766]
- Project of Qinghai Key Laboratory of Vegetable Genetics and Physiology [2020-ZJ-Y02]
This study obtained the complete mitochondrial DNA sequence of kohlrabi, annotated 61 genes, and found significant difference in usage frequency of synonymous codon. Phylogenetic inference showed that kohlrabi is closely related to B. oleracea var. botrytis.
Kohlrabi (Brassica oleracea var. gongylodes L.) is an important dietary rhizome vegetable in the Brassicaceae family. However, to date, few mitochondrial genomic resources have been reported for kohlrabi. In this study, we obtained the complete mitochondrial DNA sequence of 219,964 bp from an individual green kohlrabi. A total of 61 genes were annotated, including 33 protein-coding genes, 23 transfer RNA genes, three ribosomal RNA genes, and two pseudo genes. In addition, 1,001 open reading frames and five RNA editing sites were annotated. Relative synonymous codon usage analysis revealed significant difference in usage frequency of synonymous codon. Phylogenetic inference showed that kohlrabi is closely related to B. oleracea var. botrytis. This study provides a good foundation for further understanding the relationship and evolutionary origins among Brassicaceae crops.
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