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Analysis of the Complete Mitochondrial Genome of the Bitter Gourd (Momordica charantia)

文献类型: 外文期刊

作者: Niu, Yu 1 ; Zhang, Ting 2 ; Chen, Muxi 3 ; Chen, Guoju 2 ; Liu, Zhaohua 1 ; Yu, Renbo 1 ; Han, Xu 1 ; Chen, Kunhao 3 ; Huang, Aizheng 5 ; Chen, Changming 2 ; Yang, Yan 1 ;

作者机构: 1.Chinese Acad Trop Agr Sci, Trop Crops Genet Resources Res Inst, Danzhou 571737, Peoples R China

2.South China Agr Univ, Coll Hort, Guangzhou 510642, Peoples R China

3.Guangdong Helinong Biol Seeds Co Ltd, Shantou 515800, Peoples R China

4.Guangdong Helinong Agr Res Inst Co Ltd, Shantou 515800, Peoples R China

5.Inst Agr Sci Res Jiangmen, Jiangmen 529060, Peoples R China

关键词: bitter gourd; mitochondrial genome; de novo assembly; phylogenetic analysis; RNA editing events; covariance analysis

期刊名称:PLANTS-BASEL ( 影响因子:4.5; 五年影响因子:4.8 )

ISSN:

年卷期: 2023 年 12 卷 8 期

页码:

收录情况: SCI

摘要: Bitter gourd (Momordica charantia L.) is a significant vegetable. Although it has a special bitter taste, it is still popular with the public. The industrialization of bitter gourd could be hampered by a lack of genetic resources. The bitter gourd's mitochondrial and chloroplast genomes have not been extensively studied. In the present study, the mitochondrial genome of bitter gourd was sequenced and assembled, and its substructure was investigated. The mitochondrial genome of bitter gourd is 331,440 bp with 24 unique core genes, 16 variable genes, 3 rRNAs, and 23 tRNAs. We identified 134 SSRs and 15 tandem repeats in the entire mitochondrial genome of bitter gourd. Moreover, 402 pairs of repeats with a length greater than or equal to 30 were observed in total. The longest palindromic repeat was 523 bp, and the longest forward repeat was 342 bp. We found 20 homologous DNA fragments in bitter gourd, and the summary insert length was 19,427 bp, accounting for 5.86% of the mitochondrial genome. We predicted a total of 447 potential RNA editing sites in 39 unique PCGs and also discovered that the ccmFN gene has been edited the most often, at 38 times. This study provides a basis for a better understanding and analysis of differences in the evolution and inheritance patterns of cucurbit mitochondrial genomes.

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