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Assembly and comparative genome analysis of four mitochondrial genomes from Saccharum complex species

文献类型： 外文期刊

作者： Li, Sicheng 1 ; Yang, Cuifang 1 ; Wang, Zhen 2 ; Xu, Chaohua 4 ; Zhang, Gemin 1 ; Huang, Yuxin 1 ; Zhang, Baoqing 1 ; Zhou, Shan 1 ; Gao, Yijing 1 ; Zong, Wenyi 1 ; Duan, Weixing 1 ; Yang, Xiping 2 ;

作者机构： 1.Guangxi Acad Agr Sci, Guangxi Key Lab Sugarcane Genet Improvement, Key Lab Sugarcane Biotechnol & Genet Improvement G, Sugarcane Res Inst,Minist Agr & Rural Affairs, Nanning, Peoples R China

2.Guangxi Univ, State Key Lab Conservat & Utilizat Subtrop Agro Bi, Nanning, Peoples R China

3.Guangxi Univ, Guangxi Key Lab Sugarcane Biol, Nanning, Peoples R China

4.Yunnan Acad Agr Sci, Sugarcane Res Inst, Natl Key Lab Biol Breeding Trop Crops, Kunming, Peoples R China

关键词： mitochondrial genome; phylogenetic; Saccharinae; Tripidium arundinaceum; Erianthus rockii; Miscanthus sinensis; Narenga porphyrocoma

期刊名称：FRONTIERS IN PLANT SCIENCE （ 影响因子：4.1； 五年影响因子：5.3 ）

ISSN： 1664-462X

年卷期： 2024 年 15 卷

页码：

收录情况： SCI

摘要： Saccharum complex includes genera Saccharum, Miscanthus, Erianthus, Narenga, and Tripidium. Since the Saccharum complex/Saccharinae constitutes the gene pool used by sugarcane breeders to introduce useful traits into sugarcane, studying the genomic characterization of the Saccharum complex has become particularly important. Here, we assembled graph-based mitochondrial genomes (mitogenomes) of four Saccharinae species (T. arundinaceum, E. rockii, M. sinensis, and N. porphyrocoma) using Illumina and PacBio sequencing data. The total lengths of the mitogenomes of T. arundinaceum, M. sinensis, E. rockii and N. porphyrocoma were 549,593 bp, 514,248 bp, 481,576 bp and 513,095 bp, respectively. Then, we performed a comparative mitogenomes analysis of Saccharinae species, including characterization, organelles transfer sequence, collinear sequence, phylogenetics analysis, and gene duplicated/loss. Our results provided the mitogenomes of four species closely related to sugarcane breeding, enriching the mitochondrial genomic resources of the Saccharinae. Additionally, our study offered new insights into the evolution of mitogenomes at the family and genus levels and enhanced our understanding of organelle evolution in the highly polyploid Saccharum genus.

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