Horizontal transfer of transposons between and within crustaceans and insects

Dupeyron, Mathilde; Leclercq, Sébastien; Cerveau, Nicolas; Bouchon, Didier; Gilbert, Clément

doi:10.1186/1759-8753-5-4

Cited by 32 publications

(27 citation statements)

References 54 publications

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“…This unprecedented figure is more than four times higher than the total number of HTT events reported so far in metazoans, plants, and fungi combined (10). Such a high number is still not unexpected, given that studies focusing on one or a few TEs often found one or more HTT events between multiple, distantly related taxa (11,(14)(15)(16)22).…”

Section: Significancementioning

confidence: 66%

“…HT of TEs (HTT) may allow these elements to enter naive genomes, which they invade by making copies of themselves, and then escape before they become fully silenced by anti-TE defenses (13). A growing number of studies have identified such HTT (11,[14][15][16]. However, a common drawback of these studies has been the inclusion of a limited set of TEs (11) or organisms (16), which hampers our understanding of the breadth of HTT, its contribution to genome evolution, and of the factors and barriers shaping these transfers in eukaryotes (13).…”

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confidence: 99%

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Massive horizontal transfer of transposable elements in insects

Peccoud

Loiseau

Cordaux

et al. 2017

Proc. Natl. Acad. Sci. U.S.A.

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200

236

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Horizontal transfer (HT) of genetic material is central to the architecture and evolution of prokaryote genomes. Within eukaryotes, the majority of HTs reported so far are transfers of transposable elements (TEs). These reports essentially come from studies focusing on specific lineages or types of TEs. Because of the lack of large-scale survey, the amount and impact of HT of TEs (HTT) in eukaryote evolution, as well as the trends and factors shaping these transfers, are poorly known. Here, we report a comprehensive analysis of HTT in 195 insect genomes, representing 123 genera and 13 of the 28 insect orders. We found that these insects were involved in at least 2,248 HTT events that essentially occurred during the last 10 My. We show that DNA transposons transfer horizontally more often than retrotransposons, and unveil phylogenetic relatedness and geographical proximity as major factors facilitating HTT in insects. Even though our study is restricted to a small fraction of insect biodiversity and to a recent evolutionary timeframe, the TEs we found to be horizontally transferred generated up to 24% (2.08% on average) of all nucleotides of insect genomes. Together, our results establish HTT as a major force shaping insect genome evolution.horizontal transfer | transposable elements | insects | genome evolution | biogeography H orizontal transfer (HT) is the transmission of genetic material between organisms through a mechanism other than reproduction. In prokaryotes, HT is pervasive, its mechanisms are well understood, and it is now viewed as one of the main forces shaping genome architecture and evolution (1, 2). In contrast, the study of HT in eukaryotes is less documented, but has been increasingly investigated. The majority of genes horizontally acquired by eukaryotes come from bacteria, but the extent to which these transfers have contributed to eukaryote evolution is still unclear (3, 4). Gene transfers from eukaryote to eukaryote appear to be largely limited to filamentous organisms, such as oomycetes and fungi (5, 6).In animals and plants, very few cases of such horizontal gene transfers (HGTs) have been reported so far (7,8). In fact, most of the genetic material that is horizontally transferred in animals and plants consists of transposable elements (TEs) (9-11), which are pieces of DNA able to move from a chromosomal locus to another (12). The greater ability of TEs to move between organisms certainly relates to their intrinsic ability to transpose within genomes, which genes cannot do. HT of TEs (HTT) may allow these elements to enter naive genomes, which they invade by making copies of themselves, and then escape before they become fully silenced by anti-TE defenses (13). A growing number of studies have identified such HTT (11,[14][15][16]. However, a common drawback of these studies has been the inclusion of a limited set of TEs (11) or organisms (16), which hampers our understanding of the breadth of HTT, its contribution to genome evolution, and of the factors and barriers shaping these transfe...

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Section: Significancementioning

confidence: 66%

mentioning

confidence: 99%

Massive horizontal transfer of transposable elements in insects

Peccoud

Loiseau

Cordaux

et al. 2017

Proc. Natl. Acad. Sci. U.S.A.

Self Cite

200

236

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“…Yamada et al (2014) evidenced the occurrence of HTTs of a Mariner-like element between a bee, a wasp and a butterfly in the south-west islands of Japan. Dupeyron et al (2014) identified HTTs between crustacean (terrestrial isopods) and insects. They used a combination of in silico and wet laboratory approaches to evidence multiple transfers of two Mariner transposon families Crmar2 and Mariner-5-Dbi.…”

Section: Detection Of Htts From Full Genome Sequencesmentioning

confidence: 97%

Horizontal Transfers and the New Model of TE-Driven Genome Evolution in Eukaryotes

Baidouri¹,

Panaud

2015

Evolutionary Biology: Biodiversification From Genotype to Phenotype

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In this chapter, we present a new model of TE-driven genome evolution in eukaryotes. This model is based on the recent discovery of the propensity of transposable elements to be transferred horizontally among plant and animal species. We propose that the horizontal transfer of transposable elements (HTTs) is a key mechanism of long-term survival of TEs in eukaryotic genomes, by allowing TEs to escape from the silencing machinery of their host genome. We provide a description of the most recent discoveries of HTTs among plants and animals, an up-to-date description of the TE silencing pathways in eukaryotes, and some characteristics of TE biology in terms of functional impact and of response to environmental stress.

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“…Here, consider the same effect in a model with a finite population of size N . We use a previously published model of horizontal gene transfer 48 which is easily generalized to other mechanisms of horizontal transmission of genetic elements found in multicellular organisms such as crustaceans and insects 49 . This model ( (7)) distinguishes the effects of the transmission rate β of the bene and the selective value s of the bene.…”

Section: Supplementary Informationmentioning

confidence: 99%

Dynamics of beneficial epidemics

Berdahl

Brelsford

Bacco

et al. 2019

Sci Rep

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Pathogens can spread epidemically through populations. Beneficial contagions, such as viruses that enhance host survival or technological innovations that improve quality of life, also have the potential to spread epidemically. How do the dynamics of beneficial biological and social epidemics differ from those of detrimental epidemics? We investigate this question using a breadth-first modeling approach involving three distinct theoretical models. First, in the context of population genetics, we show that a horizontally-transmissible element that increases fitness, such as viral DNA, spreads superexponentially through a population, more quickly than a beneficial mutation. Second, in the context of behavioral epidemiology, we show that infections that cause increased connectivity lead to superexponential fixation in the population. Third, in the context of dynamic social networks, we find that preferences for increased global infection accelerate spread and produce superexponential fixation, but preferences for local assortativity halt epidemics by disconnecting the infected from the susceptible. We conclude that the dynamics of beneficial biological and social epidemics are characterized by the rapid spread of beneficial elements, which is facilitated in biological systems by horizontal transmission and in social systems by active spreading behavior of infected individuals.

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Horizontal transfer of transposons between and within crustaceans and insects

Cited by 32 publications

References 54 publications

Massive horizontal transfer of transposable elements in insects

Massive horizontal transfer of transposable elements in insects

Horizontal Transfers and the New Model of TE-Driven Genome Evolution in Eukaryotes

Dynamics of beneficial epidemics

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