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Anjos A, Milani D, Bardella VB, Paladini A, Cabral-de-Mello DC. Evolution of satDNAs on holocentric chromosomes: insights from hemipteran insects of the genus Mahanarva. CHROMOSOME RESEARCH : AN INTERNATIONAL JOURNAL ON THE MOLECULAR, SUPRAMOLECULAR AND EVOLUTIONARY ASPECTS OF CHROMOSOME BIOLOGY 2023; 31:5. [PMID: 36705735 DOI: 10.1007/s10577-023-09710-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 11/09/2022] [Accepted: 12/05/2022] [Indexed: 01/28/2023]
Abstract
Satellite DNAs (satDNAs) constitute one of the main components of eukaryote genomes and are involved in chromosomal organization and diversification. Although largely studied, little information was gathered about their evolution on holocentric species, i.e., diffuse centromeres, which, due to differences in repeat organization, could result in different evolutionary patterns. Here, we combined bioinformatics and cytogenetic approaches to evaluate the evolution of the satellitomes in Mahanarva holocentric insects. In two species, de novo identification revealed a high number of satDNAs, 110 and 113, with an extreme monomer length range of 18-4228 bp. The overall abundance of satDNAs was observed to be 6.67% in M. quadripunctata and 1.98% in M. spectabilis, with different abundances for the shared satDNAs. Chromosomal mapping of the most abundant repeats of M. quadripunctata and M. spectabilis on other Mahanarva reinforced the dynamic nature of satDNAs. Variable patterns of chromosomal distribution for the satDNAs were noticed, with the occurrence of clusters on distinct numbers of chromosomes and at different positions and the occurrence of scattered signals or nonclustered satDNAs. Altogether, our data demonstrated the high dynamism of satDNAs in Mahanarva with the involvement of this genomic fraction in chromosome diversification of the genus. The general characteristics and patterns of evolution of satDNAs are similar to those observed on monocentric chromosomes, suggesting that the differential organization of genome compartments observed on holocentric chromosomes compared with monocentric chromosomes does not have a large impact on the evolution of satDNAs. Analysis of the satellitomes of other holocentric species in a comparative manner will shed light on this issue.
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Affiliation(s)
- Allison Anjos
- Departamento de Biologia Geral e Aplicada, Instituto de Biociências, UNESP, Rio Claro, SP, 13506-900, Brazil
| | - Diogo Milani
- Departamento de Biologia Geral e Aplicada, Instituto de Biociências, UNESP, Rio Claro, SP, 13506-900, Brazil
| | - Vanessa B Bardella
- Departamento de Biologia Geral e Aplicada, Instituto de Biociências, UNESP, Rio Claro, SP, 13506-900, Brazil
| | - Andressa Paladini
- Departamento de Ecologia e Evolução, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Diogo C Cabral-de-Mello
- Departamento de Biologia Geral e Aplicada, Instituto de Biociências, UNESP, Rio Claro, SP, 13506-900, Brazil.
- Department of Experimental Biology, Genetics Area, University of Jaén, Paraje las Lagunillas s/n, 23071, Jaen, Spain.
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Kuznetsova VG, Gavrilov-Zimin IA, Grozeva SM, Golub NV. Comparative analysis of chromosome numbers and sex chromosome systems in Paraneoptera (Insecta). COMPARATIVE CYTOGENETICS 2021; 15:279-327. [PMID: 34616525 PMCID: PMC8490342 DOI: 10.3897/compcytogen.v15.i3.71866] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Accepted: 09/06/2021] [Indexed: 05/28/2023]
Abstract
This article is part (the 4th article) of the themed issue (a monograph) "Aberrant cytogenetic and reproductive patterns in the evolution of Paraneoptera". The purpose of this article is to consider chromosome structure and evolution, chromosome numbers and sex chromosome systems, which all together constitute the chromosomal basis of reproduction and are essential for reproductive success. We are based on our own observations and literature data available for all major lineages of Paraneoptera including Zoraptera (angel insects), Copeognatha (=Psocoptera; bark lice), Parasita (=Phthiraptera s. str; true lice), Thysanoptera (thrips), Homoptera (scale insects, aphids, jumping plant-lice, whiteflies, and true hoppers), Heteroptera (true bugs), and Coleorrhyncha (moss bugs). Terminology, nomenclature, classification, and the study methods are given in the first paper of the issue (Gavrilov-Zimin et al. 2021).
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Affiliation(s)
- Valentina G. Kuznetsova
- Zoological Institute, Russian Academy of Sciences, Universitetskaya emb. 1, St. Petersburg, 199034, RussiaZoological Institute, Russian Academy of SciencesSt. PetersburgRussia
| | - Ilya A. Gavrilov-Zimin
- Zoological Institute, Russian Academy of Sciences, Universitetskaya emb. 1, St. Petersburg, 199034, RussiaZoological Institute, Russian Academy of SciencesSt. PetersburgRussia
| | - Snejana M. Grozeva
- Institute of Biodiversity and Ecosystem Research, Bulgarian Academy of Sciences, Blvd Tsar Osvoboditel 1, Sofia 1000, BulgariaInstitute of Biodiversity and Ecosystem Research, Bulgarian Academy of SciencesSofiaBulgaria
| | - Natalia V. Golub
- Zoological Institute, Russian Academy of Sciences, Universitetskaya emb. 1, St. Petersburg, 199034, RussiaZoological Institute, Russian Academy of SciencesSt. PetersburgRussia
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Martí E, Milani D, Bardella VB, Albuquerque L, Song H, Palacios-Gimenez OM, Cabral-de-Mello DC. Cytogenomic analysis unveils mixed molecular evolution and recurrent chromosomal rearrangements shaping the multigene families on Schistocerca grasshopper genomes. Evolution 2021; 75:2027-2041. [PMID: 34155627 DOI: 10.1111/evo.14287] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 05/11/2021] [Accepted: 05/26/2021] [Indexed: 11/26/2022]
Abstract
Multigene families are essential components of eukaryotic genomes and play key roles either structurally and functionally. Their modes of evolution remain elusive even in the era of genomics, because multiple multigene family sequences coexist in genomes, particularly in large repetitive genomes. Here, we investigate how the multigene families 18S rDNA, U2 snDNA, and H3 histone evolved in 10 species of Schistocerca grasshoppers with very large and repeat-enriched genomes. Using sequenced genomes and fluorescence in situ hybridization mapping, we find substantial differences between species, including the number of chromosomal clusters, changes in sequence abundance and nucleotide composition, pseudogenization, and association with transposable elements (TEs). The intragenomic analysis of Schistocerca gregaria using long-read sequencing and genome assembly unveils conservation for H3 histone and recurrent pseudogenization for 18S rDNA and U2 snDNA, likely promoted by association with TEs and sequence truncation. Remarkably, TEs were frequently associated with truncated copies, were also among the most abundant in the genome, and revealed signatures of recent activity. Our findings suggest a combined effect of concerted and birth-and-death models driving the evolution of multigene families in Schistocerca over the last 8 million years, and the occurrence of intra- and interchromosomal rearrangements shaping their chromosomal distribution. Despite the conserved karyotype in Schistocerca, our analysis highlights the extensive reorganization of repetitive DNAs in Schistocerca, contributing to the advance of comparative genomics for this important grasshopper genus.
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Affiliation(s)
- Emiliano Martí
- Departamento de Biologia Geral e Aplicada, UNESP - Univ Estadual Paulista, Instituto de Biociências/IB, Rio Claro, 13506-900, Brazil
| | - Diogo Milani
- Departamento de Biologia Geral e Aplicada, UNESP - Univ Estadual Paulista, Instituto de Biociências/IB, Rio Claro, 13506-900, Brazil
| | - Vanessa B Bardella
- Departamento de Biologia Geral e Aplicada, UNESP - Univ Estadual Paulista, Instituto de Biociências/IB, Rio Claro, 13506-900, Brazil
| | - Lucas Albuquerque
- Departamento de Biologia Geral e Aplicada, UNESP - Univ Estadual Paulista, Instituto de Biociências/IB, Rio Claro, 13506-900, Brazil
| | - Hojun Song
- Department of Entomology, Texas A&M University, College Station, Texas, 77843
| | - Octavio M Palacios-Gimenez
- Department of Organismal Biology - Systematic Biology, Evolutionary Biology Centre, Uppsala University, Uppsala, SE-75236, Sweden.,Population Ecology Group, Institute of Ecology and Evolution, Friedrich Schiller University Jena, Jena, DE-07743, Germany
| | - Diogo C Cabral-de-Mello
- Departamento de Biologia Geral e Aplicada, UNESP - Univ Estadual Paulista, Instituto de Biociências/IB, Rio Claro, 13506-900, Brazil
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Cavalcante MG, Nagamachi CY, Pieczarka JC, Noronha RCR. Evolutionary insights in Amazonian turtles (Testudines, Podocnemididae): co-location of 5S rDNA and U2 snRNA and wide distribution of Tc1/Mariner. Biol Open 2020; 9:bio049817. [PMID: 32229487 PMCID: PMC7197720 DOI: 10.1242/bio.049817] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 03/18/2020] [Indexed: 12/29/2022] Open
Abstract
Eukaryotic genomes exhibit substantial accumulation of repetitive DNA sequences. These sequences can participate in chromosomal reorganization events and undergo molecular cooption to interfere with the function and evolution of genomes. In turtles, repetitive DNA sequences appear to be accumulated at probable break points and may participate in events such as non-homologous recombination and chromosomal rearrangements. In this study, repeated sequences of 5S rDNA, U2 snRNA and Tc1/Mariner transposons were amplified from the genomes of the turtles, Podocnemis expansa and Podocnemis unifilis, and mapped by fluorescence in situ hybridization. Our data confirm the 2n=28 chromosomes for these species (the second lowest 2n in the order Testudines). We observe high conservation of the co-located 5S rDNA and U2 snRNA genes on a small chromosome pair (pair 13), and surmise that this represents the ancestral condition. Our analysis reveals a wide distribution of the Tc1/Mariner transposons and we discuss how the mobility of these transposons can act on karyotypic reorganization events (contributing to the 2n decrease of those species). Our data add new information for the order Testudines and provide important insights into the dynamics and organization of these sequences in the chelonian genomes.
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Affiliation(s)
- Manoella Gemaque Cavalcante
- Centro de Estudos Avançados da Biodiversidade, Cytogenetics Laboratory, Institute of Biological Sciences, Federal University of Pará, Belém, Pará, Brazil
| | - Cleusa Yoshiko Nagamachi
- Centro de Estudos Avançados da Biodiversidade, Cytogenetics Laboratory, Institute of Biological Sciences, Federal University of Pará, Belém, Pará, Brazil
| | - Julio Cesar Pieczarka
- Centro de Estudos Avançados da Biodiversidade, Cytogenetics Laboratory, Institute of Biological Sciences, Federal University of Pará, Belém, Pará, Brazil
| | - Renata Coelho Rodrigues Noronha
- Centro de Estudos Avançados da Biodiversidade, Cytogenetics Laboratory, Institute of Biological Sciences, Federal University of Pará, Belém, Pará, Brazil
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Anjos A, Paladini A, Evangelista O, Cabral‐de‐Mello DC. Insights into chromosomal evolution of Cicadomorpha using fluorochrome staining and mapping 18S rRNA and H3 histone genes. J ZOOL SYST EVOL RES 2018. [DOI: 10.1111/jzs.12254] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Allison Anjos
- Departamento de BiologiaInstituto de BiociênciasUNESP Rio Claro SP Brazil
| | - Andressa Paladini
- Departamento de Ecologia e EvoluçãoUniversidade Federal de Santa Maria Santa Maria RS Brazil
| | - Olivia Evangelista
- Australian National Insect CollectionCSIRO National Research Collections Australia Canberra Australia
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