Academic Journal
Variable organization of repeats and hidden diversity of XY sex chromosomes in Pentatomidae true Bugs (Hemiptera) revealed through comparative genomic hybridization.
| Τίτλος: | Variable organization of repeats and hidden diversity of XY sex chromosomes in Pentatomidae true Bugs (Hemiptera) revealed through comparative genomic hybridization. |
|---|---|
| Συγγραφείς: | Milani D; Departamento de Biologia Geral e Aplicada, Instituto de Biociências/IB, UNESP- Universidade Estadual Paulista, Rio Claro, São Paulo, 13506-900, Brazil., Bardella VB; Departamento de Biologia Geral e Aplicada, Instituto de Biociências/IB, UNESP- Universidade Estadual Paulista, Rio Claro, São Paulo, 13506-900, Brazil., Hickmann F; Deptartment of Entomology and Acarology, Luiz de Queiroz College of Agriculture, USP/ESALQ, Univ of São Paulo, Piracicaba, SP, Brazil.; Department of Entomology, College of Food, Agricultural, and Environmental Sciences, The Ohio State University, 1680 Madison Ave., Wooster, OH, 44691, USA., Corrêa AS; Deptartment of Entomology and Acarology, Luiz de Queiroz College of Agriculture, USP/ESALQ, Univ of São Paulo, Piracicaba, SP, Brazil., Michel AP; Department of Entomology, College of Food, Agricultural, and Environmental Sciences, The Ohio State University, 1680 Madison Ave., Wooster, OH, 44691, USA., Mora P; Departamento de Biologia Geral e Aplicada, Instituto de Biociências/IB, UNESP- Universidade Estadual Paulista, Rio Claro, São Paulo, 13506-900, Brazil.; Department of Experimental Biology, Genetics Area, University of Jaén, Paraje las Lagunillas s/n, Jaén, 23071, Spain., Rico-Porras JM; Department of Experimental Biology, Genetics Area, University of Jaén, Paraje las Lagunillas s/n, Jaén, 23071, Spain., Palomeque T; Department of Experimental Biology, Genetics Area, University of Jaén, Paraje las Lagunillas s/n, Jaén, 23071, Spain., Lorite P; Department of Experimental Biology, Genetics Area, University of Jaén, Paraje las Lagunillas s/n, Jaén, 23071, Spain., Cabral-de-Mello DC; Departamento de Biologia Geral e Aplicada, Instituto de Biociências/IB, UNESP- Universidade Estadual Paulista, Rio Claro, São Paulo, 13506-900, Brazil. cabral.mello@unesp.br.; Department of Experimental Biology, Genetics Area, University of Jaén, Paraje las Lagunillas s/n, Jaén, 23071, Spain. cabral.mello@unesp.br. |
| Πηγή: | Chromosoma [Chromosoma] 2025 May 26; Vol. 134 (1), pp. 4. Date of Electronic Publication: 2025 May 26. |
| Τύπος έκδοσης: | Journal Article; Research Support, Non-U.S. Gov't |
| Γλώσσα: | English |
| Στοιχεία περιοδικού: | Publisher: Springer-Verlag Country of Publication: Austria NLM ID: 2985138R Publication Model: Electronic Cited Medium: Internet ISSN: 1432-0886 (Electronic) Linking ISSN: 00095915 NLM ISO Abbreviation: Chromosoma Subsets: MEDLINE |
| Imprint Name(s): | Original Publication: Wien : Springer-Verlag, 1947- |
| Ιατρικοί όροι (MeSH): | Sex Chromosomes*/genetics , X Chromosome*/genetics , Hemiptera*/genetics , Comparative Genomic Hybridization* , Repetitive Sequences, Nucleic Acid* , Genetic Variation*, Animals ; Male ; Female ; Karyotype ; Karyotyping |
| Περίληψη: | Sex chromosomes have independently evolved in various species, displaying unique evolutionary patterns, including differentiation, degeneration, and repetitive DNA accumulation. Pentatomidae hemipterans are characterized by a highly conserved diploid number of 2n = 14 with a XX/XY sex chromosome system, i.e. 2n = 14, 12 A + XY. Thus, it represents an interesting group for investigating the reorganization of repeats in conserved karyotypes, i.e. the absence of large chromosomal rearrangements. Using comparative genomic hybridization (CGH) with male and female genomic DNAs (gDNA), this study examined a total of 25 Pentatomidae species to uncover repetitive DNA dynamics and their role in chromosome differentiation, especially sex chromosome differentiation. New karyotype data for nine species reinforces the chromosomal stasis in Pentatomidae for macro-chromosomal structure. However, significant variability in repetitive DNA patterns on autosomes and sex chromosomes has been revealed despite the karyotypic conservation. Autosomal signals varied in intensity and distribution, with some species exhibiting terminal enrichment of repeats, while others displayed dispersed patterns. Sex chromosomes showed distinct hybridization patterns, with the Y chromosome exhibiting more significant variability compared to the X. These findings emphasize the dynamic nature of sex chromosomes and suggest further studies combining genomic sequencing and cytogenetics to uncover sequences and the mechanisms behind their evolution. (© 2025. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.) |
| Competing Interests: | Declarations. Ethical approval: Not applicable. Consent to participate: Not applicable. Consent for publication: Not applicable. Competing interests: The authors declare no competing interests. |
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| Grant Information: | 2018/21772-5, 2018/20351-6, 2019/19069-7, 2021/05908-7, 2024/01521-9 Fundação de Amparo à Pesquisa do Estado de São Paulo; 2014-2020 Junta de Andalucía; 001 Coordenação de Aperfeiçoamento de Pessoal de Nível Superior; 308290/2020-8 Conselho Nacional de Desenvolvimento Científico e Tecnológico |
| Contributed Indexing: | Keywords: CGH; Fluorescence in situ hybridization; Genome; Holocentric chromosomes; Karyotype; Repetitive DNAs |
| Entry Date(s): | Date Created: 20250526 Date Completed: 20250526 Latest Revision: 20261008 |
| Update Code: | 20261008 |
| DOI: | 10.1007/s00412-025-00831-7 |
| PMID: | 40418433 |
| Βάση Δεδομένων: | MEDLINE |
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