The mobilome of Drosophila incompta, a flower-breeding species: comparison of transposable element landscapes among generalist and specialist flies

Fonseca, Pedro Mesquita; Moura, Rafael D; Wallau, Gabriel Luz; Loreto, Élgion Lúcio da Silva

doi:10.1007/s10577-019-09609-x

Cited by 11 publications

(26 citation statements)

References 67 publications

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“…(105,148)), although this correlation is not formally tested. Variation in genome size also shows a strong phylogenetic signal and is positively correlated to TE content both at the scale of arthropods (102,146) and within insect orders: in Drosophila species (40,122), wood-white butterflies (130) and fireflies (84). This observation is somewhat expected given that TEs, like any other genome component, are inherited from parents to descendants.…”

Section: -2 the Influence Of Vertical And Horizontal Transmission On Insect Te Landscapesmentioning

confidence: 89%

Transposable Elements and the Evolution of Insects

Gilbert

Peccoud

Cordaux

2021

Annu. Rev. Entomol.

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Insects are major contributors to our understanding of the interaction between transposable elements (TEs) and their hosts, owing to seminal discoveries, as well as to the growing number of sequenced insect genomes and population genomics and functional studies. Insect TE landscapes are highly variable both within and across insect orders, although phylogenetic relatedness appears to correlate with similarity in insect TE content. This correlation is unlikely to be solely due to inheritance of TEs from shared ancestors and may partly reflect preferential horizontal transfer of TEs between closely related species. The influence of insect traits on TE landscapes, however, remains unclear. Recent findings indicate that, in addition to being involved in insect adaptations and aging, TEs are seemingly at the cornerstone of insect antiviral immunity. Thus, TEs are emerging as essential insect symbionts that may have deleterious or beneficial consequences on their hosts, depending on context. Expected final online publication date for the Annual Review of Entomology, Volume 66 is January 11, 2021. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.

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Section: -2 the Influence Of Vertical And Horizontal Transmission On Insect Te Landscapesmentioning

confidence: 89%

Transposable Elements and the Evolution of Insects

Gilbert

Peccoud

Cordaux

2021

Annu. Rev. Entomol.

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“…Even if TE elements are ubiquitous components, the content in terms of type, number, and prevalence is very variable across the genomes. This variation was observed at different time scales that is between species from the same phylum as well as between individuals from the same species ( Huang et al 2012 ; Thomas-Bulle et al 2018 ; Fonseca et al 2019 ; Gaiero et al 2019 ; Ray et al 2019 ). In the most recent studies, the comparison of TE contents has allowed a better understanding of the events that shaped populations, such as the domestication of rice ( Carpentier et al 2019 ), silkworm ( Han et al 2018 ), and sunflower ( Mascagni et al 2018 ).…”

Section: Introductionmentioning

confidence: 95%

Species-Wide Transposable Element Repertoires Retrace the Evolutionary History of the Saccharomyces cerevisiae Host

Bleykasten-Grosshans

Fabrizio

Friedrich

et al. 2021

Molecular Biology and Evolution

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Transposable elements (TE) are an important source of genetic variation with a dynamic and content that greatly differ in a wide range of species. The origin of the intraspecific content variation is not always clear and little is known about the precise nature of it. Here, we surveyed the species-wide content of the Ty LTR-retrotransposons in a broad collection of 1,011 Saccharomyces cerevisiae natural isolates to understand what can stand behind the variation of the repertoire, i.e. the type and number of Ty elements. We have compiled an exhaustive catalog of all the TE sequence variants present in the S. cerevisiae species by identifying a large set of new sequence variants. The characterization of the TE content in each isolate clearly highlighted that each subpopulation exhibits a unique and specific repertoire, retracing the evolutionary history of the species. Most interestingly, we have shown that ancient interspecific hybridization events had a major impact in the birth of new sequence variants and therefore in the shaping of the TE repertoires. We also investigated the transpositional activity of these elements in a large set of natural isolates, and we found a broad variability related to the level of ploidy as well as the genetic background. Overall, our results pointed out that the evolution of the Ty content is deeply impacted by clade-specific events such as introgressions and therefore follows the population structure. In addition, our study lays the foundation for future investigations to better understand the transpositional regulation and more broadly the TE-host interactions.

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“…This variation was observed at different time scales, i.e. between species from the same phylum as well as between individuals from the same species [5][6][7][8][9]. In the most recent studies, the comparison of TE contents has allowed a better understanding of the events that shaped populations, such as the domestication of rice [10], silk worm [11], and sunflower [12].…”

Section: Introductionmentioning

confidence: 99%

Species-wide transposable element repertoires retrace the evolutionary history of theSaccharomyces cerevisiaehost

Bleykasten-Grosshans

Fabrizio

Friedrich

et al. 2021

Preprint

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Transposable elements (TE) are an important source of genetic variation with a dynamic and content that greatly differ in a wide range of species. The origin of the intraspecific content variation is not always clear and little is known about the precise nature of it. Here, we surveyed the species-wide content of the Ty LTR-retrotransposons in a broad collection of 1,011 Saccharomyces cerevisiae natural isolates to understand what can stand behind the variation of the repertoire, i.e. the type and number of Ty elements. We have compiled an exhaustive catalog of all TE variants present in the S. cerevisiae species by identifying a large set of new variants. The characterization of the TE content in each isolate clearly highlighted that each subpopulation exhibits a unique and specific repertoire, retracing the evolutionary history of the species. Most interestingly, we have shown that ancient interspecific hybridization events had a major impact in the birth of new variants and therefore in the shaping of the TE repertoires. We also investigated the transpositional activity of these elements in a large set of natural isolates, and we found a broad variability related to the level of ploidy as well as the genetic background. Overall, our results pointed out that the evolution of the Ty content is deeply impacted by clade-specific events such as introgressions and therefore follows the population structure. In addition, our study lays the foundation for future investigations to better understand the transpositional regulation and more broadly the TE-host interactions.

show abstract

The mobilome of Drosophila incompta, a flower-breeding species: comparison of transposable element landscapes among generalist and specialist flies

Cited by 11 publications

References 67 publications

Transposable Elements and the Evolution of Insects

Transposable Elements and the Evolution of Insects

Species-Wide Transposable Element Repertoires Retrace the Evolutionary History of the Saccharomyces cerevisiae Host

Species-wide transposable element repertoires retrace the evolutionary history of theSaccharomyces cerevisiaehost

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