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Bastide H, Legout H, Dogbo N, Ogereau D, Prediger C, Carcaud J, Filée J, Garnery L, Gilbert C, Marion-Poll F, Requier F, Sandoz JC, Yassin A. The genome of the blind bee louse fly reveals deep convergences with its social host and illuminates Drosophila origins. Curr Biol 2024; 34:1122-1132.e5. [PMID: 38309271 DOI: 10.1016/j.cub.2024.01.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Revised: 10/22/2023] [Accepted: 01/12/2024] [Indexed: 02/05/2024]
Abstract
Social insects' nests harbor intruders known as inquilines,1 which are usually related to their hosts.2,3 However, distant non-social inquilines may also show convergences with their hosts,4,5 although the underlying genomic changes remain unclear. We analyzed the genome of the wingless and blind bee louse fly Braula coeca, an inquiline kleptoparasite of the western honey bee, Apis mellifera.6,7 Using large phylogenomic data, we confirmed recent accounts that the bee louse fly is a drosophilid8,9 and showed that it had likely evolved from a sap-breeder ancestor associated with honeydew and scale insects' wax. Unlike many parasites, the bee louse fly genome did not show significant erosion or strict reliance on an endosymbiont, likely due to a relatively recent age of inquilinism. However, we observed a horizontal transfer of a transposon and a striking parallel evolution in a set of gene families between the honey bee and the bee louse fly. Convergences included genes potentially involved in metabolism and immunity and the loss of nearly all bitter-tasting gustatory receptors, in agreement with life in a protective nest and a diet of honey, pollen, and beeswax. Vision and odorant receptor genes also exhibited rapid losses. Only genes whose orthologs in the closely related Drosophila melanogaster respond to honey bee pheromone components or floral aroma were retained, whereas the losses included orthologous receptors responsive to the anti-ovarian honey bee queen pheromones. Hence, deep genomic convergences can underlie major phenotypic transitions during the evolution of inquilinism between non-social parasites and their social hosts.
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Affiliation(s)
- Héloïse Bastide
- Université Paris-Saclay, CNRS, IRD, UMR Évolution, Génomes, Comportement et Écologie, 91198 Gif-sur-Yvette, France.
| | - Hélène Legout
- Université Paris-Saclay, CNRS, IRD, UMR Évolution, Génomes, Comportement et Écologie, 91198 Gif-sur-Yvette, France
| | - Noé Dogbo
- Université Paris-Saclay, CNRS, IRD, UMR Évolution, Génomes, Comportement et Écologie, 91198 Gif-sur-Yvette, France
| | - David Ogereau
- Université Paris-Saclay, CNRS, IRD, UMR Évolution, Génomes, Comportement et Écologie, 91198 Gif-sur-Yvette, France
| | - Carolina Prediger
- Université Paris-Saclay, CNRS, IRD, UMR Évolution, Génomes, Comportement et Écologie, 91198 Gif-sur-Yvette, France
| | - Julie Carcaud
- Université Paris-Saclay, CNRS, IRD, UMR Évolution, Génomes, Comportement et Écologie, 91198 Gif-sur-Yvette, France
| | - Jonathan Filée
- Université Paris-Saclay, CNRS, IRD, UMR Évolution, Génomes, Comportement et Écologie, 91198 Gif-sur-Yvette, France
| | - Lionel Garnery
- Université Paris-Saclay, CNRS, IRD, UMR Évolution, Génomes, Comportement et Écologie, 91198 Gif-sur-Yvette, France
| | - Clément Gilbert
- Université Paris-Saclay, CNRS, IRD, UMR Évolution, Génomes, Comportement et Écologie, 91198 Gif-sur-Yvette, France
| | - Frédéric Marion-Poll
- Université Paris-Saclay, CNRS, IRD, UMR Évolution, Génomes, Comportement et Écologie, 91198 Gif-sur-Yvette, France; Université Paris-Saclay, AgroParisTech, 91123 Palaiseau Cedex, France
| | - Fabrice Requier
- Université Paris-Saclay, CNRS, IRD, UMR Évolution, Génomes, Comportement et Écologie, 91198 Gif-sur-Yvette, France
| | - Jean-Christophe Sandoz
- Université Paris-Saclay, CNRS, IRD, UMR Évolution, Génomes, Comportement et Écologie, 91198 Gif-sur-Yvette, France
| | - Amir Yassin
- Université Paris-Saclay, CNRS, IRD, UMR Évolution, Génomes, Comportement et Écologie, 91198 Gif-sur-Yvette, France
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Erlenbach T, Haynes L, Fish O, Beveridge J, Giambrone S, Reed LK, Dyer KA, Scott Chialvo CH. Investigating the phylogenetic history of toxin tolerance in mushroom-feeding Drosophila. Ecol Evol 2023; 13:e10736. [PMID: 38099137 PMCID: PMC10719611 DOI: 10.1002/ece3.10736] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 11/01/2023] [Accepted: 11/02/2023] [Indexed: 12/17/2023] Open
Abstract
Understanding how and when key novel adaptations evolved is a central goal of evolutionary biology. Within the immigrans-tripunctata radiation of Drosophila, many mushroom-feeding species are tolerant of host toxins, such as cyclopeptides, that are lethal to nearly all other eukaryotes. In this study, we used phylogenetic and functional approaches to investigate the evolution of cyclopeptide tolerance in the immigrans-tripunctata radiation of Drosophila. First, we inferred the evolutionary relationships among 48 species in this radiation using 978 single copy orthologs. Our results resolved previous incongruities within species groups across the phylogeny. Second, we expanded on previous studies of toxin tolerance by assaying 16 of these species for tolerance to α-amanitin and found that six of them could develop on diet with toxin. Finally, we asked how α-amanitin tolerance might have evolved across the immigrans-tripunctata radiation, and inferred that toxin tolerance was ancestral in mushroom-feeding Drosophila and subsequently lost multiple times. Our findings expand our understanding of toxin tolerance across the immigrans-tripunctata radiation and emphasize the uniqueness of toxin tolerance in this adaptive radiation and the complexity of biochemical adaptations.
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Affiliation(s)
| | - Lauren Haynes
- Department of Biological SciencesUniversity of AlabamaTuscaloosaAlabamaUSA
| | - Olivia Fish
- Department of Biological SciencesUniversity of AlabamaTuscaloosaAlabamaUSA
| | - Jordan Beveridge
- Department of Biological SciencesUniversity of AlabamaTuscaloosaAlabamaUSA
| | | | - Laura K. Reed
- Department of Biological SciencesUniversity of AlabamaTuscaloosaAlabamaUSA
| | - Kelly A. Dyer
- Department of GeneticsUniversity of GeorgiaAthensGeorgiaUSA
| | - Clare H. Scott Chialvo
- Department of Biological SciencesUniversity of AlabamaTuscaloosaAlabamaUSA
- Department of BiologyAppalachian State UniversityBooneNorth CarolinaUSA
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Erlenbach T, Haynes L, Fish O, Beveridge J, Bingolo E, Giambrone SA, Kropelin G, Rudisill S, Chialvo P, Reed LK, Dyer KA, Chialvo CS. Investigating the phylogenetic history of toxin tolerance in mushroom-feeding Drosophila. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.08.03.551872. [PMID: 37577671 PMCID: PMC10418198 DOI: 10.1101/2023.08.03.551872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/15/2023]
Abstract
Understanding how and when key novel adaptations evolved is a central goal of evolutionary biology. Within the immigrans-tripunctata radiation of Drosophila , many mushroom-feeding species are tolerant of host toxins, such as cyclopeptides, that are lethal to nearly all other eukaryotes. In this study, we used phylogenetic and functional approaches to investigate the evolution of cyclopeptide tolerance in the immigrans-tripunctata radiation of Drosophila . We first inferred the evolutionary relationships among 48 species in this radiation using 978 single copy orthologs. Our results resolved previous incongruities within species groups across the phylogeny. Second, we expanded on previous studies of toxin tolerance by assaying 16 of these species for tolerance to α-amanitin and found that six of these species could develop on diet with toxin. Third, we examined fly development on a diet containing a natural mix of toxins extracted from the Death Cap Amanita phalloides mushroom. Both tolerant and susceptible species developed on diet with this mix, though tolerant species survived at significantly higher concentrations. Finally, we asked how cyclopeptide tolerance might have evolved across the immigrans-tripunctata radiation and inferred that toxin tolerance was ancestral and subsequently lost multiple times. Our results suggest the evolutionary history of cyclopeptide tolerance is complex, and simply describing this trait as present or absent does not fully capture the occurrence or impact on this adaptive radiation. More broadly, the evolution of novelty can be more complex than previously thought, and that accurate descriptions of such novelties are critical in studies examining their evolution.
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Costa SC, Pirani G, Mathis WN. First record of Diastatidae (Diptera: Ephydroidea) from Brazil, with the description of a new species. Zootaxa 2023; 5278:378-386. [PMID: 37518277 DOI: 10.11646/zootaxa.5278.2.10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Indexed: 08/01/2023]
Abstract
The ephydroid family Diastatidae is recorded for the first time from Brazil. A new species, Diastata fachini Costa, Pirani & Mathis, sp. nov. which was collected from the Atlantic Forest, is described. The description is based on an adult male and female and includes photographs and detailed illustrations.
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Affiliation(s)
- Sávio Cunha Costa
- Laboratório de Biologia Comparada e Abelhas; Departamento de Biologia; Faculdade de Filosofia; Ciências e Letras de Ribeirão Preto; Universidade de São Paulo; Av. Bandeirantes; 3900; 14040-901; Ribeirão Preto; SP; Brazil.
| | - Gabriela Pirani
- Laboratório de Morfologia e Evolução de Diptera; Departamento de Biologia; Faculdade de Filosofia; Ciências e Letras de Ribeirão Preto; Universidade de São Paulo; Av. Bandeirantes; 3900; 14040-901; Ribeirão Preto; SP; Brazil.
| | - Wayne N Mathis
- Department of Entomology; NHB 169; PO Box 37012; Smithsonian Institution; Washington; D. C. 20013-7012; United States.
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