Comparative repeatome analysis of Pyrgomorphidae and Acrididae (Orthoptera: Caelifera) revealed the contribution of repetitive DNA in genome gigantism Article Swipe
Muhammad Salman
,
Xuanzeng Liu
,
Nian Liu
,
Yuan Huang
·
YOU?
·
· 2025
· Open Access
·
· DOI: https://doi.org/10.1371/journal.pone.0325165
YOU?
·
· 2025
· Open Access
·
· DOI: https://doi.org/10.1371/journal.pone.0325165
Eukaryotic genomes are often rich in DNA repetitive elements, involving both transposable elements (TE) and tandemly repeated satellite DNA. Grasshopper species, known for their large genome sizes, comprising relatively a high proportion of genomic repeats. This study aimed to identify and perform a comparative analysis of DNA repetitive content in eight grasshopper species from the Pyrgomorphidae and Acrididae families. We utilized unassembled low-coverage Illumina paired-end short reads in the RepeatExplorer2 pipeline to identify genomic repeats, and RepeatMasker to estimate their abundance and divergence activity. Flow cytometry estimated genome sizes, ranging from 1C = 7.670 pg to 18.612 pg, with Aularches miliaris (18.612 pg) being the second largest insect genome reported to date. The repeat content ranged from 51% to 74%, with a mean value of 64.26% of the total genome. The major identified repeat elements included LINE, Ty3_Gypsy, Penelope, Ty1-copia, Helitron, Maverick, and satellite repeats, with LINE elements being the most abundant, constituting 24% to 54% of the total repetitive content in Apalacris varicornis and A. miliaris , respectively. The positive correlation of repetitive content and TEs with genome size suggests that their expansion has contributed to the large genome sizes observed. Satellite DNA analysis identified 65 satDNA families across the eight species. Additionally, phylogenetic analysis of TE protein domains revealed that consensus sequences from the same domain cluster together, suggesting domain-specific evolutionary pathways for TEs in the genome. This study reveals new dynamics into the role of repetitive DNA in genome gigantism as well as other evolutionary mechanisms in the Pyrgomorphidae and Acrididae families of Orthoptera.
Related Topics
Concepts
Genome
Genome size
Biology
Repeated sequence
Satellite DNA
Comparative genomics
Acrididae
Genetics
Transposable element
Genome evolution
Interspersed repeat
Evolutionary biology
Intergenic region
Phylogenetic tree
Genomics
Gene
Human genome
Zoology
Orthoptera
Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.1371/journal.pone.0325165
- OA Status
- gold
- Cited By
- 1
- References
- 72
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W4410950510
All OpenAlex metadata
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- OpenAlex ID
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https://openalex.org/W4410950510Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.1371/journal.pone.0325165Digital Object Identifier
- Title
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Comparative repeatome analysis of Pyrgomorphidae and Acrididae (Orthoptera: Caelifera) revealed the contribution of repetitive DNA in genome gigantismWork title
- Type
-
articleOpenAlex work type
- Language
-
enPrimary language
- Publication year
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2025Year of publication
- Publication date
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2025-06-02Full publication date if available
- Authors
-
Muhammad Salman, Xuanzeng Liu, Nian Liu, Yuan HuangList of authors in order
- Landing page
-
https://doi.org/10.1371/journal.pone.0325165Publisher landing page
- Open access
-
YesWhether a free full text is available
- OA status
-
goldOpen access status per OpenAlex
- OA URL
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https://doi.org/10.1371/journal.pone.0325165Direct OA link when available
- Concepts
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Genome, Genome size, Biology, Repeated sequence, Satellite DNA, Comparative genomics, Acrididae, Genetics, Transposable element, Genome evolution, Interspersed repeat, Evolutionary biology, Intergenic region, Phylogenetic tree, Genomics, Gene, Human genome, Zoology, OrthopteraTop concepts (fields/topics) attached by OpenAlex
- Cited by
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1Total citation count in OpenAlex
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2025: 1Per-year citation counts (last 5 years)
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72Number of works referenced by this work
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10Other works algorithmically related by OpenAlex
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