Evidence map›Paper›PMID 42894133›Full record

ArticleBMC plant biology2026

Assembly and comparative analysis of the complete mitochondrial genome of a orchid cultivar 'Jingzi' reveals multichromosomal architecture and plastid-derived DNA transfers.

Boyang Zhang, Jiuyang Tang, Hailong Wang, Bo Wang, Zhang Zhang, Guiming Liu, Yunfu Li, Jianhua Wei, Jiewei Zhang

Abstract readComparative Study
PubMed Full text at PMC Publisher
In one paragraph

Article in BMC plant biology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

9 authors.

Boyang Zhang *Beijing Key Laboratory of Agricultural Genetic Resources and Biotechnology, Beijing Key Laboratory of Crop Molecular Design and Intelligent Breeding, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, China.
Jiuyang Tang *Beijing Vocational College of Agriculture, Beijing, 102442, China.
Hailong Wang *Beijing Key Laboratory of Agricultural Genetic Resources and Biotechnology, Beijing Key Laboratory of Crop Molecular Design and Intelligent Breeding, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, China.
Bo WangSchool of Life Sciences, Shandong Yantai University, Yantai, 264005, China.
Zhang ZhangBeijing Key Laboratory of Agricultural Genetic Resources and Biotechnology, Beijing Key Laboratory of Crop Molecular Design and Intelligent Breeding, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, China.
Guiming LiuBeijing Key Laboratory of Agricultural Genetic Resources and Biotechnology, Beijing Key Laboratory of Crop Molecular Design and Intelligent Breeding, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, China.
Yunfu LiBeijing Vocational College of Agriculture, Beijing, 102442, China. 13501039992@163.com.
Jianhua WeiBeijing Key Laboratory of Agricultural Genetic Resources and Biotechnology, Beijing Key Laboratory of Crop Molecular Design and Intelligent Breeding, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, China. weijianhua@baafs.net.cn.
Jiewei ZhangBeijing Key Laboratory of Agricultural Genetic Resources and Biotechnology, Beijing Key Laboratory of Crop Molecular Design and Intelligent Breeding, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, China. zhangjiewei@baafs.net.cn.

Funding

Beijing Academy of Agriculture and Forestry Sciences Science Foundation KJCX20230203, KJCX20230120Research Fund from Chief Expert Team Project of Beijing Vocational College of Agricultural XY-TD-22-05
6 · The paper itself

Abstract

backgroundOrchidaceae is one of the most diverse flowering plant families in angiosperms and holds significant cultural, economic, and ecological value in China. Despite economic and horticultural significance, the mitochondrial genomes of Cymbidium kanran remain poorly characterized.

resultsWe assembled and annotated the complete mitochondrial genome of a new orchid variety, 'Jingzi', using PacBio HiFi sequencing technology. The mitochondrial genome is 704, 624 bp in length with a GC content of 43.91%, comprising 24 circular contigs. It contains 38 protein-coding genes (PCGs), including 24 unique core mitochondrial genes, 27 tRNA genes, and 3 rRNA genes. Notably, atp6 exhibits an unprecedented duplication event. Intracellular gene transfer analysis revealed 91 fragments homologous between mitochondria and chloroplasts, totaling 92, 762 bp (13.16% of the mitochondrial genome). Based on 24 conserved PCGs from 20 angiosperm species, our phylogenetic analysis indicated a potential affinity between 'Jingzi' and Paphiopedilum from Shenzhen. Given the poor sampling of closely related genera within Cymbidium, this observation is preliminary and awaits validation from future studies with expanded taxon coverage.

conclusionsThis study elucidates the main features of the 'Jingzi' mitochondrial genome, highlights extensive mitochondrial-chloroplast homology, and reports the presence of two copies of atp6 in the mitochondrial genome. These findings provide valuable insights for genetic and evolutionary studies of orchids.

Indexed as

Genome, MitochondrialOrchidaceaePlastidsGene Transfer, HorizontalPhylogenyatp6Cymbidium kanranGenetic evolutionMitochondrial genome

Identifiers

PMID42894133
PMCPMC13678904

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