Evolutionary shifts in taste coding in the fruit pest Drosophila suzukii
Although most Drosophila species lay eggs in overripe fruit, the agricultural pest Drosophila suzukii lays eggs in ripe fruit. We found that changes in bitter taste perception have accompanied this adaptation. We show that bitter-sensing mutants of Drosophila melanogaster undergo a shift in egg layi...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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eLife Sciences Publications Ltd
2021-02-01
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| Series: | eLife |
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| Online Access: | https://elifesciences.org/articles/64317 |
| _version_ | 1811202629303271424 |
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| author | Hany KM Dweck Gaëlle JS Talross Wanyue Wang John R Carlson |
| author_facet | Hany KM Dweck Gaëlle JS Talross Wanyue Wang John R Carlson |
| author_sort | Hany KM Dweck |
| collection | DOAJ |
| description | Although most Drosophila species lay eggs in overripe fruit, the agricultural pest Drosophila suzukii lays eggs in ripe fruit. We found that changes in bitter taste perception have accompanied this adaptation. We show that bitter-sensing mutants of Drosophila melanogaster undergo a shift in egg laying preference toward ripe fruit. D. suzukii has lost 20% of the bitter-sensing sensilla from the labellum, the major taste organ of the head. Physiological responses to various bitter compounds are lost. Responses to strawberry purées are lost from two classes of taste sensilla. Egg laying is not deterred by bitter compounds that deter other species. Profiling of labellar transcriptomes reveals reduced expression of several bitter Gr genes (gustatory receptors). These findings support a model in which bitter compounds in early ripening stages deter egg laying in most Drosophila species, but a loss of bitter response contributes to the adaptation of D. suzukii to ripe fruit. |
| first_indexed | 2024-04-12T02:42:06Z |
| format | Article |
| id | doaj.art-6d766f80360f4704937c5b9b67f2bcc8 |
| institution | Directory Open Access Journal |
| issn | 2050-084X |
| language | English |
| last_indexed | 2024-04-12T02:42:06Z |
| publishDate | 2021-02-01 |
| publisher | eLife Sciences Publications Ltd |
| record_format | Article |
| series | eLife |
| spelling | doaj.art-6d766f80360f4704937c5b9b67f2bcc82022-12-22T03:51:17ZengeLife Sciences Publications LtdeLife2050-084X2021-02-011010.7554/eLife.64317Evolutionary shifts in taste coding in the fruit pest Drosophila suzukiiHany KM Dweck0https://orcid.org/0000-0002-7017-5020Gaëlle JS Talross1https://orcid.org/0000-0002-4785-0606Wanyue Wang2John R Carlson3https://orcid.org/0000-0002-0244-5180Department of Molecular, Cellular and Developmental Biology, Yale University, New Haven, United StatesDepartment of Molecular, Cellular and Developmental Biology, Yale University, New Haven, United StatesDepartment of Molecular, Cellular and Developmental Biology, Yale University, New Haven, United StatesDepartment of Molecular, Cellular and Developmental Biology, Yale University, New Haven, United StatesAlthough most Drosophila species lay eggs in overripe fruit, the agricultural pest Drosophila suzukii lays eggs in ripe fruit. We found that changes in bitter taste perception have accompanied this adaptation. We show that bitter-sensing mutants of Drosophila melanogaster undergo a shift in egg laying preference toward ripe fruit. D. suzukii has lost 20% of the bitter-sensing sensilla from the labellum, the major taste organ of the head. Physiological responses to various bitter compounds are lost. Responses to strawberry purées are lost from two classes of taste sensilla. Egg laying is not deterred by bitter compounds that deter other species. Profiling of labellar transcriptomes reveals reduced expression of several bitter Gr genes (gustatory receptors). These findings support a model in which bitter compounds in early ripening stages deter egg laying in most Drosophila species, but a loss of bitter response contributes to the adaptation of D. suzukii to ripe fruit.https://elifesciences.org/articles/64317evolutiontaste systemD. suzukiiripe fruitlabellumbitter compounds |
| spellingShingle | Hany KM Dweck Gaëlle JS Talross Wanyue Wang John R Carlson Evolutionary shifts in taste coding in the fruit pest Drosophila suzukii eLife evolution taste system D. suzukii ripe fruit labellum bitter compounds |
| title | Evolutionary shifts in taste coding in the fruit pest Drosophila suzukii |
| title_full | Evolutionary shifts in taste coding in the fruit pest Drosophila suzukii |
| title_fullStr | Evolutionary shifts in taste coding in the fruit pest Drosophila suzukii |
| title_full_unstemmed | Evolutionary shifts in taste coding in the fruit pest Drosophila suzukii |
| title_short | Evolutionary shifts in taste coding in the fruit pest Drosophila suzukii |
| title_sort | evolutionary shifts in taste coding in the fruit pest drosophila suzukii |
| topic | evolution taste system D. suzukii ripe fruit labellum bitter compounds |
| url | https://elifesciences.org/articles/64317 |
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