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  1. Article ; Online: Detection of F1 Hybrids from Single-genome Data Reveals Frequent Hybridization in Hymenoptera and Particularly Ants.

    Weyna, Arthur / Bourouina, Lucille / Galtier, Nicolas / Romiguier, Jonathan

    Molecular biology and evolution

    2022  Volume 39, Issue 4

    Abstract: Hybridization occupies a central role in many fundamental evolutionary processes, such as speciation or adaptation. Yet, despite its pivotal importance in evolution, little is known about the actual prevalence and distribution of current hybridization ... ...

    Abstract Hybridization occupies a central role in many fundamental evolutionary processes, such as speciation or adaptation. Yet, despite its pivotal importance in evolution, little is known about the actual prevalence and distribution of current hybridization across the tree of life. Here we develop and implement a new statistical method enabling the detection of F1 hybrids from single-individual genome sequencing data. Using simulations and sequencing data from known hybrid systems, we first demonstrate the specificity of the method, and identify its statistical limits. Next, we showcase the method by applying it to available sequencing data from more than 1,500 species of Arthropods, including Hymenoptera, Hemiptera, Coleoptera, Diptera, and Archnida. Among these taxa, we find Hymenoptera, and especially ants, to display the highest number of candidate F1 hybrids, suggesting higher rates of recent hybridization between previously isolated gene pools in these groups. The prevalence of F1 hybrids was heterogeneously distributed across ants, with taxa including many candidates tending to harbor specific ecological and life-history traits. This work shows how large-scale genomic comparative studies of recent hybridization can be implemented, uncovering the determinants of first-generation hybridization across whole taxa.
    MeSH term(s) Animals ; Ants/genetics ; Gene Pool ; Genome ; Genomics ; Hybridization, Genetic
    Language English
    Publishing date 2022-05-06
    Publishing country United States
    Document type Journal Article
    ZDB-ID 998579-7
    ISSN 1537-1719 ; 0737-4038
    ISSN (online) 1537-1719
    ISSN 0737-4038
    DOI 10.1093/molbev/msac071
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    In stock of ZB MED Cologne/Königswinter

    Zs.A 2137: Show issues Location:
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    Jg. 1995 - 2021: Lesesall (1.OG)
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  2. Article ; Online: Hybridization enables the fixation of selfish queen genotypes in eusocial colonies.

    Weyna, Arthur / Romiguier, Jonathan / Mullon, Charles

    Evolution letters

    2021  Volume 5, Issue 6, Page(s) 582–594

    Abstract: A eusocial colony typically consists of two main castes: queens that reproduce and sterile workers that help them. This division of labor, however, is vulnerable to genetic elements that favor the development of their carriers into queens. Several ... ...

    Abstract A eusocial colony typically consists of two main castes: queens that reproduce and sterile workers that help them. This division of labor, however, is vulnerable to genetic elements that favor the development of their carriers into queens. Several factors, such as intracolonial relatedness, can modulate the spread of such caste-biasing genotypes. Here we investigate the effects of a notable yet understudied ecological setting: where larvae produced by hybridization develop into sterile workers. Using mathematical modeling, we show that the coevolution of hybridization with caste determination readily triggers an evolutionary arms race between nonhybrid larvae that increasingly develop into queens, and queens that increasingly hybridize to produce workers. Even where hybridization reduces worker function and colony fitness, this race can lead to the loss of developmental plasticity and to genetically hard-wired caste determination. Overall, our results may help understand the repeated evolution toward remarkable reproductive systems (e.g., social hybridogenesis) observed in several ant species.
    Language English
    Publishing date 2021-09-16
    Publishing country England
    Document type Journal Article
    ISSN 2056-3744
    ISSN (online) 2056-3744
    DOI 10.1002/evl3.253
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  3. Article ; Online: Relaxation of purifying selection suggests low effective population size in eusocial Hymenoptera and solitary pollinating bees

    Weyna, Arthur / Romiguier, Jonathan

    Peer Community Journal, Vol 1, Iss , Pp - (2021)

    2021  

    Abstract: With one of the highest number of parasite, eusocial and pollinator species among all insect orders, Hymenoptera features a great diversity of specific lifestyles. At the population genetic level, such life-history strategies are expected to decrease ... ...

    Abstract With one of the highest number of parasite, eusocial and pollinator species among all insect orders, Hymenoptera features a great diversity of specific lifestyles. At the population genetic level, such life-history strategies are expected to decrease effective population size and efficiency of purifying selection. In this study, we tested this hypothesis by estimating the relative rate of non-synonymous substitution in 169 species to investigate the variation in natural selection efficiency throughout the hymenopteran tree of life. We found no effect of parasitism or body size, but show that relaxed selection is associated with eusociality, suggesting that the division of reproductive labour decreases effective population size in ants, bees and wasps. Unexpectedly, the effect of eusociality is marginal compared to a striking and widespread relaxation of selection in both social and non social bees, which indicates that these keystone pollinator species generally feature low effective population sizes. This widespread pattern suggests specific constraints in pollinating bees potentially linked to limited resource and high parental investment. The particularly high load of deleterious mutations we report in the genome of these crucial ecosystem engineer species also raises new concerns about their ongoing population decline.
    Keywords Archaeology ; CC1-960 ; Science ; Q
    Subject code 612 ; 590
    Language English
    Publishing date 2021-11-01T00:00:00Z
    Publisher Peer Community In
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Article ; Online: Ant phylogenomics reveals a natural selection hotspot preceding the origin of complex eusociality.

    Romiguier, Jonathan / Borowiec, Marek L / Weyna, Arthur / Helleu, Quentin / Loire, Etienne / La Mendola, Christine / Rabeling, Christian / Fisher, Brian L / Ward, Philip S / Keller, Laurent

    Current biology : CB

    2022  Volume 32, Issue 13, Page(s) 2942–2947.e4

    Abstract: The evolution of eusociality has allowed ants to become one of the most conspicuous and ecologically dominant groups of organisms in the world. A large majority of the current ∼14,000 ant species belong to the formicoids, ...

    Abstract The evolution of eusociality has allowed ants to become one of the most conspicuous and ecologically dominant groups of organisms in the world. A large majority of the current ∼14,000 ant species belong to the formicoids,
    MeSH term(s) Animals ; Ants/genetics ; Phylogeny ; Reproduction/genetics ; Selection, Genetic ; Social Behavior
    Language English
    Publishing date 2022-05-26
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, Non-P.H.S.
    ZDB-ID 1071731-6
    ISSN 1879-0445 ; 0960-9822
    ISSN (online) 1879-0445
    ISSN 0960-9822
    DOI 10.1016/j.cub.2022.05.001
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 3208: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (2.OG)
    ab Jg. 2022: Lesesaal (EG)

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  5. Article ; Online: Habitats shape taxonomic and functional composition of Neotropical ant assemblages.

    Fichaux, Mélanie / Béchade, Benoît / Donald, Julian / Weyna, Arthur / Delabie, Jacques Hubert Charles / Murienne, Jérôme / Baraloto, Christopher / Orivel, Jérôme

    Oecologia

    2019  Volume 189, Issue 2, Page(s) 501–513

    Abstract: Determining assembly rules of co-occurring species persists as a fundamental goal in community ecology. At local scales, the relative importance of environmental filtering vs. competitive exclusion remains a subject of debate. In this study, we assessed ... ...

    Abstract Determining assembly rules of co-occurring species persists as a fundamental goal in community ecology. At local scales, the relative importance of environmental filtering vs. competitive exclusion remains a subject of debate. In this study, we assessed the relative importance of habitat filtering and competition in structuring understory ant communities in tropical forests of French Guiana. Leaf-litter ants were collected using pitfall and Winkler traps across swamp, slope and plateau forests near Saül, French Guiana. We used a combination of univariate and multivariate analyses to evaluate trait response of ants to habitat characteristics. Null model analyses were used to investigate the effects of habitat filtering and competitive interactions on community assembly at the scale of assemblages and sampling points, respectively. Swamp forests presented a much lower taxonomic and functional richness compared to slope and plateau forests. Furthermore, marked differences in taxonomic and functional composition were observed between swamp forests and slope or plateau forests. We found weak evidence for competitive exclusion based on null models. Nevertheless, the contrasting trait composition observed between habitats revealed differences in the ecological attributes of the species in the different forest habitats. Our analyses suggest that competitive interactions may not play an important role in structuring leaf-litter ant assemblages locally. Rather, habitats are responsible for driving both taxonomic and functional composition of ant communities.
    MeSH term(s) Animals ; Ants ; Biodiversity ; Ecology ; Ecosystem ; Forests ; French Guiana
    Language English
    Publishing date 2019-01-30
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 123369-5
    ISSN 1432-1939 ; 0029-8549
    ISSN (online) 1432-1939
    ISSN 0029-8549
    DOI 10.1007/s00442-019-04341-z
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    In stock of ZB MED Bonn / Germany

    Z 70/109: Show issues

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  6. Article ; Online: Mitochondrial genomics reveals the evolutionary history of the porpoises (Phocoenidae) across the speciation continuum.

    Ben Chehida, Yacine / Thumloup, Julie / Schumacher, Cassie / Harkins, Timothy / Aguilar, Alex / Borrell, Asunción / Ferreira, Marisa / Rojas-Bracho, Lorenzo / Robertson, Kelly M / Taylor, Barbara L / Víkingsson, Gísli A / Weyna, Arthur / Romiguier, Jonathan / Morin, Phillip A / Fontaine, Michael C

    Scientific reports

    2020  Volume 10, Issue 1, Page(s) 15190

    Abstract: Historical variation in food resources is expected to be a major driver of cetacean evolution, especially for the smallest species like porpoises. Despite major conservation issues among porpoise species (e.g., vaquita and finless), their evolutionary ... ...

    Abstract Historical variation in food resources is expected to be a major driver of cetacean evolution, especially for the smallest species like porpoises. Despite major conservation issues among porpoise species (e.g., vaquita and finless), their evolutionary history remains understudied. Here, we reconstructed their evolutionary history across the speciation continuum. Phylogenetic analyses of 63 mitochondrial genomes suggest that porpoises radiated during the deep environmental changes of the Pliocene. However, all intra-specific subdivisions were shaped during the Quaternary glaciations. We observed analogous evolutionary patterns in both hemispheres associated with convergent evolution to coastal versus oceanic environments. This suggests that similar mechanisms are driving species diversification in northern (harbor and Dall's) and southern species (spectacled and Burmeister's). In contrast to previous studies, spectacled and Burmeister's porpoises shared a more recent common ancestor than with the vaquita that diverged from southern species during the Pliocene. The low genetic diversity observed in the vaquita carried signatures of a very low population size since the last 5,000 years. Cryptic lineages within Dall's, spectacled and Pacific harbor porpoises suggest a richer evolutionary history than previously suspected. These results provide a new perspective on the mechanisms driving diversification in porpoises and an evolutionary framework for their conservation.
    MeSH term(s) Animals ; Biodiversity ; Biological Evolution ; Ecosystem ; Evolution, Molecular ; Genetic Speciation ; Genome, Mitochondrial/genetics ; Genomics/methods ; Mitochondria/genetics ; Phylogeny ; Porpoises/physiology ; Species Specificity
    Language English
    Publishing date 2020-09-16
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-020-71603-9
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: How do invasion syndromes evolve? An experimental evolution approach using the ladybird Harmonia axyridis

    Foucaud, Julien / Hufbauer, Ruth A. / Ravigné, Virginie / Olazcuaga, Laure / Loiseau, Anne / Ausset, Aurélien / Wang, Su / Zang, Lian-Sheng / Leménager, Nicolas / Tayeh, Ashraf / Weyna, Arthur / Gneux, Pauline / Bonnet, Elise / Dreuilhe, Vincent / Poutout, Bastien / Estoup, Arnaud / Facon, Benoît

    Peer Community Journal, Vol 1, Iss , Pp - (2021)

    2021  

    Abstract: Experiments comparing native to introduced populations or distinct introduced populations to each other show that phenotypic evolution is common and often involves a suit of interacting phenotypic traits. We define such sets of traits that evolve in ... ...

    Abstract Experiments comparing native to introduced populations or distinct introduced populations to each other show that phenotypic evolution is common and often involves a suit of interacting phenotypic traits. We define such sets of traits that evolve in concert and contribute to the success of invasive populations as an invasion syndrome. The invasive Harlequin ladybird Harmonia axyridis displays such an invasion syndrome with, for instance, females from invasive populations being larger and heavier than individuals from native populations, allocating more resources to reproduction, and spreading reproduction over a longer lifespan. Invasion syndromes could emerge due to selection acting jointly and directly on a multitude of traits, or due to selection on one or a few key traits that drive correlated indirect responses in other traits. Here, we investigated the degree to which the H. axyridis invasion syndrome would emerge in response to artificial selection on either female body mass or on age at first reproduction, two traits involved in their invasion syndrome. To further explore the interaction between environmental context and evolutionary change in molding the phenotypic response, we phenotyped the individuals from the selection experiments in two environments, one with abundant food resources and one with limited resources. The two artificial selection experiments show that the number of traits showing a correlated response depends upon the trait undergoing direct selection. Artificial selection on female body mass resulted in few correlated responses and hence poorly reproduced the invasion syndrome. In contrast, artificial selection on age at first reproduction resulted in more widespread phenotypic changes, which nevertheless corresponded only partly to the invasion syndrome. The artificial selection experiments also revealed a large impact of diet on the traits, with effects dependent on the trait considered and the selection regime. Overall, our results indicate that direct selection on multiple traits ...
    Keywords Archaeology ; CC1-960 ; Science ; Q
    Subject code 580
    Language English
    Publishing date 2021-11-01T00:00:00Z
    Publisher Peer Community In
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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