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An efficient approach for obtaining plant organelle genomes

Oil Crop Science 2020年第3期5卷 129-135页

作者： Shifei Sang Desheng Mei Qamar U.Zaman Jia Liu Hongtao Cheng Li Fu Wenxiang Wang Hui Wang Qiong Hu Key Laboratory for Biology and Genetic Improvement of Oil Crops Ministry of Agriculture and Rural AffairsOil Crops Research InstituteChinese Academy of Agricultural SciencesWuhanChina

Plant organelle(plastid and mitochondrial)genomes contain substantial information for plant evolution and ***,it’s important to reveal plant whole-genome sequences including plastid and mitochondrial *** decode these sequences,it is required to efficiently separate organelle genomic DNA from nucleus genome,which is difficult and *** this study,an efficient procedure was established to obtain plant organelle genomes without extraction of plastid and *** DNA was extracted from three materials including Sinapis arvensis var.‘Yeyou 18’,a cytoplasmic male sterile line(Nsa CMS)and its corresponding maintainer line‘Zhongshuang 4’.DNA was sequenced by Roche 454 FLXt and Illumina Miseq *** genomes were assembled using the generated reads and public organelle genome *** research presented a procedure that efficiently assembled organelle genomes and subsequent fill gaps by extending the consensus contig *** method enabled us to assemble plant plastid and mitochondrial genomes *** obtained organelle genomes could accelerate understanding of mitochondrial rearrangements and laid a foundation for further study of Sinapis arvensis evolution and sterility gene of Nsa CMS.

关键词： Plastid Mitochondrial genome sequence Nsa CMS organelle genome

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Comparison and phylogeny on mitochondrial genome of marine and freshwater taxa of genus Hildenbrandia(Florideophyceae,Rhodophyta)

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Journal of Oceanology and Limnology 2023年第6期41卷 2324-2335页

作者： Fangru NAN Juan LI Jia FENG Junping Lü Qi LIU Xudong LIU Shulian XIE School of Life Science Shanxi UniversityTaiyuan 030006China

Hildenbrandia is an early diverged lineage in Florideophyceae,*** species diversity of this genus is still unresolved due to the simple morphology and limited molecular *** mitochondrial genome of freshwater *** was determined in this *** freshwater *** had a larger mitochondrial genome than the marine *** and GC content was *** alignment structure was observed between the mitochondrial genomes of *** and ***,except for one block that was encoded on the complement *** introns were found in mitochondrial genome of *** than in ***,and *** shares the common feature with Bangiophyceae that two introns were distributed in *** of mitochondrial genome organization suggests that *** preserves characters that could be hypothetically more similar to the ancestor of Bangiophyceae and Florideophyceae,which differ with previous studies based on chloroplast,and nuclear *** mitochondrial genomes and phylogenetic analyses combing nuclear,chloroplast and mitochondrial genomes are needed to clarify this ***-based phylogeny in this study resulted in better solution at both the deep and recent derived nodes than single-gene *** protein-coding genes between *** and *** were identical except atp8,which was present in *** while absent from *** finding follows the trend that high Ka/Ks ratio genes are more frequently lost than low Ka/Ks ratio ones in red algae.

关键词： red algae organelle genome freshwater species phylogenomics

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