A holobiont view of island biogeography: unravelling patterns driving the nascent diversification of a Hawaiian spider and its microbial associates
The diversification of a host lineage can be influenced by both the external environment and its assemblage of microbes. Here, we use a young lineage of spiders, distributed along a chronologically arranged series of volcanic mountains, to investigate how their associated microbial communities have...
| Main Authors: | , , , , , , , , |
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| Format: | Journal Article |
| Language: | English |
| Published: |
2022
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| Online Access: | https://hdl.handle.net/10356/162732 |
| _version_ | 1826130013330604032 |
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| author | Armstrong, Ellie E. Perez-Lamarque, Benoît Bi, Ke Chen, Cerise Becking, Leontine E. Lim, Jun Ying Linderoth, Tyler Krehenwinkel, Henrik Gillespie, Rosemary G. |
| author2 | School of Biological Sciences |
| author_facet | School of Biological Sciences Armstrong, Ellie E. Perez-Lamarque, Benoît Bi, Ke Chen, Cerise Becking, Leontine E. Lim, Jun Ying Linderoth, Tyler Krehenwinkel, Henrik Gillespie, Rosemary G. |
| author_sort | Armstrong, Ellie E. |
| collection | NTU |
| description | The diversification of a host lineage can be influenced by both the external environment and its assemblage of microbes. Here, we use a young lineage of spiders, distributed along a chronologically arranged series of volcanic mountains, to investigate how their associated microbial communities have changed as the spiders colonized new locations. Using the stick spider Ariamnes waikula (Araneae, Theridiidae) on the island of Hawai'i, and outgroup taxa on older islands, we tested whether each component of the "holobiont" (spider hosts, intracellular endosymbionts and gut microbial communities) showed correlated signatures of diversity due to sequential colonization from older to younger volcanoes. To investigate this, we generated ddRAD data for the host spiders and 16S rRNA gene amplicon data from their microbiota. We expected sequential colonizations to result in a (phylo)genetic structuring of the host spiders and in a diversity gradient in microbial communities. The results showed that the host A. waikula is indeed structured by geographical isolation, suggesting sequential colonization from older to younger volcanoes. Similarly, the endosymbiont communities were markedly different between Ariamnes species on different islands, but more homogeneous among A. waikula populations on the island of Hawai'i. Conversely, the gut microbiota, which we suspect is generally environmentally derived, was largely conserved across all populations and species. Our results show that different components of the holobiont respond in distinct ways to the dynamic environment of the volcanic archipelago. This highlights the necessity of understanding the interplay between different components of the holobiont, to properly characterize its evolution. |
| first_indexed | 2024-10-01T07:49:37Z |
| format | Journal Article |
| id | ntu-10356/162732 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:49:37Z |
| publishDate | 2022 |
| record_format | dspace |
| spelling | ntu-10356/1627322022-11-07T07:02:08Z A holobiont view of island biogeography: unravelling patterns driving the nascent diversification of a Hawaiian spider and its microbial associates Armstrong, Ellie E. Perez-Lamarque, Benoît Bi, Ke Chen, Cerise Becking, Leontine E. Lim, Jun Ying Linderoth, Tyler Krehenwinkel, Henrik Gillespie, Rosemary G. School of Biological Sciences Science::Biological sciences Adaptive Radiation Endosymbiont The diversification of a host lineage can be influenced by both the external environment and its assemblage of microbes. Here, we use a young lineage of spiders, distributed along a chronologically arranged series of volcanic mountains, to investigate how their associated microbial communities have changed as the spiders colonized new locations. Using the stick spider Ariamnes waikula (Araneae, Theridiidae) on the island of Hawai'i, and outgroup taxa on older islands, we tested whether each component of the "holobiont" (spider hosts, intracellular endosymbionts and gut microbial communities) showed correlated signatures of diversity due to sequential colonization from older to younger volcanoes. To investigate this, we generated ddRAD data for the host spiders and 16S rRNA gene amplicon data from their microbiota. We expected sequential colonizations to result in a (phylo)genetic structuring of the host spiders and in a diversity gradient in microbial communities. The results showed that the host A. waikula is indeed structured by geographical isolation, suggesting sequential colonization from older to younger volcanoes. Similarly, the endosymbiont communities were markedly different between Ariamnes species on different islands, but more homogeneous among A. waikula populations on the island of Hawai'i. Conversely, the gut microbiota, which we suspect is generally environmentally derived, was largely conserved across all populations and species. Our results show that different components of the holobiont respond in distinct ways to the dynamic environment of the volcanic archipelago. This highlights the necessity of understanding the interplay between different components of the holobiont, to properly characterize its evolution. L.E.B was supported by the Netherlands Organisation for Scientific Research VENI #863.14.020. B.P.L. was supported by a master fellowship from the École Normale Supérieure of Paris. H.K. was supported by a postdoctoral fellowship by the German Research Foundation (DFG). Support for the project was provided by the NSF DEB 1241253 to R.G.G 2022-11-07T07:02:08Z 2022-11-07T07:02:08Z 2022 Journal Article Armstrong, E. E., Perez-Lamarque, B., Bi, K., Chen, C., Becking, L. E., Lim, J. Y., Linderoth, T., Krehenwinkel, H. & Gillespie, R. G. (2022). A holobiont view of island biogeography: unravelling patterns driving the nascent diversification of a Hawaiian spider and its microbial associates. Molecular Ecology, 31(4), 1299-1316. https://dx.doi.org/10.1111/mec.16301 0962-1083 https://hdl.handle.net/10356/162732 10.1111/mec.16301 34861071 2-s2.0-85121367392 4 31 1299 1316 en Molecular Ecology © 2021 John Wiley & Sons Ltd. All rights reserved. |
| spellingShingle | Science::Biological sciences Adaptive Radiation Endosymbiont Armstrong, Ellie E. Perez-Lamarque, Benoît Bi, Ke Chen, Cerise Becking, Leontine E. Lim, Jun Ying Linderoth, Tyler Krehenwinkel, Henrik Gillespie, Rosemary G. A holobiont view of island biogeography: unravelling patterns driving the nascent diversification of a Hawaiian spider and its microbial associates |
| title | A holobiont view of island biogeography: unravelling patterns driving the nascent diversification of a Hawaiian spider and its microbial associates |
| title_full | A holobiont view of island biogeography: unravelling patterns driving the nascent diversification of a Hawaiian spider and its microbial associates |
| title_fullStr | A holobiont view of island biogeography: unravelling patterns driving the nascent diversification of a Hawaiian spider and its microbial associates |
| title_full_unstemmed | A holobiont view of island biogeography: unravelling patterns driving the nascent diversification of a Hawaiian spider and its microbial associates |
| title_short | A holobiont view of island biogeography: unravelling patterns driving the nascent diversification of a Hawaiian spider and its microbial associates |
| title_sort | holobiont view of island biogeography unravelling patterns driving the nascent diversification of a hawaiian spider and its microbial associates |
| topic | Science::Biological sciences Adaptive Radiation Endosymbiont |
| url | https://hdl.handle.net/10356/162732 |
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