Out of Asia: mitochondrial evolutionary history of the globally introduced supralittoral isopod Ligia exotica
The native ranges and invasion histories of many marine species remain elusive due to a dynamic dispersal process via marine vessels. Molecular markers can aid in identification of native ranges and elucidation of the introduction and establishment process. The supralittoral isopod Ligia exotica has...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
PeerJ Inc.
2018-03-01
|
| Series: | PeerJ |
| Subjects: | |
| Online Access: | https://peerj.com/articles/4337.pdf |
| _version_ | 1797424360253816832 |
|---|---|
| author | Luis A. Hurtado Mariana Mateos Chang Wang Carlos A. Santamaria Jongwoo Jung Valiallah Khalaji-Pirbalouty Won Kim |
| author_facet | Luis A. Hurtado Mariana Mateos Chang Wang Carlos A. Santamaria Jongwoo Jung Valiallah Khalaji-Pirbalouty Won Kim |
| author_sort | Luis A. Hurtado |
| collection | DOAJ |
| description | The native ranges and invasion histories of many marine species remain elusive due to a dynamic dispersal process via marine vessels. Molecular markers can aid in identification of native ranges and elucidation of the introduction and establishment process. The supralittoral isopod Ligia exotica has a wide tropical and subtropical distribution, frequently found in harbors and ports around the globe. This isopod is hypothesized to have an Old World origin, from where it was unintentionally introduced to other regions via wooden ships and solid ballast. Its native range, however, remains uncertain. Recent molecular studies uncovered the presence of two highly divergent lineages of L. exotica in East Asia, and suggest this region is a source of nonindigenous populations. In this study, we conducted phylogenetic analyses (Maximum Likelihood and Bayesian) of a fragment of the mitochondrial 16S ribosomal (r)DNA gene using a dataset of this isopod that greatly expanded previous representation from Asia and putative nonindigenous populations around the world. For a subset of samples, sequences of 12S rDNA and NaK were also obtained and analyzed together with 16S rDNA. Our results show that L. exotica is comprised of several highly divergent genetic lineages, which probably represent different species. Most of the 16S rDNA genetic diversity (48 haplotypes) was detected in East and Southeast Asia. Only seven haplotypes were observed outside this region (in the Americas, Hawai’i, Africa and India), which were identical or closely related to haplotypes found in East and Southeast Asia. Phylogenetic patterns indicate the L. exotica clade originated and diversified in East and Southeast Asia, and only members of one of the divergent lineages have spread out of this region, recently, suggesting the potential to become invasive is phylogenetically constrained. |
| first_indexed | 2024-03-09T08:01:07Z |
| format | Article |
| id | doaj.art-ebffa77d23874f26ad5a1048212a17cd |
| institution | Directory Open Access Journal |
| issn | 2167-8359 |
| language | English |
| last_indexed | 2024-03-09T08:01:07Z |
| publishDate | 2018-03-01 |
| publisher | PeerJ Inc. |
| record_format | Article |
| series | PeerJ |
| spelling | doaj.art-ebffa77d23874f26ad5a1048212a17cd2023-12-03T00:47:40ZengPeerJ Inc.PeerJ2167-83592018-03-016e433710.7717/peerj.4337Out of Asia: mitochondrial evolutionary history of the globally introduced supralittoral isopod Ligia exoticaLuis A. Hurtado0Mariana Mateos1Chang Wang2Carlos A. Santamaria3Jongwoo Jung4Valiallah Khalaji-Pirbalouty5Won Kim6Department of Wildlife and Fisheries Sciences, Texas A&M University, College Station, TX, United States of AmericaDepartment of Wildlife and Fisheries Sciences, Texas A&M University, College Station, TX, United States of AmericaDepartment of Wildlife and Fisheries Sciences, Texas A&M University, College Station, TX, United States of AmericaDepartment of Wildlife and Fisheries Sciences, Texas A&M University, College Station, TX, United States of AmericaDepartment of Science Education, Ewha Women’s University, Seoul, South KoreaDepartment of Biology, Shahrekord University, Shahrekord, IranSchool of Biological Sciences, Seoul National University, Seoul, South KoreaThe native ranges and invasion histories of many marine species remain elusive due to a dynamic dispersal process via marine vessels. Molecular markers can aid in identification of native ranges and elucidation of the introduction and establishment process. The supralittoral isopod Ligia exotica has a wide tropical and subtropical distribution, frequently found in harbors and ports around the globe. This isopod is hypothesized to have an Old World origin, from where it was unintentionally introduced to other regions via wooden ships and solid ballast. Its native range, however, remains uncertain. Recent molecular studies uncovered the presence of two highly divergent lineages of L. exotica in East Asia, and suggest this region is a source of nonindigenous populations. In this study, we conducted phylogenetic analyses (Maximum Likelihood and Bayesian) of a fragment of the mitochondrial 16S ribosomal (r)DNA gene using a dataset of this isopod that greatly expanded previous representation from Asia and putative nonindigenous populations around the world. For a subset of samples, sequences of 12S rDNA and NaK were also obtained and analyzed together with 16S rDNA. Our results show that L. exotica is comprised of several highly divergent genetic lineages, which probably represent different species. Most of the 16S rDNA genetic diversity (48 haplotypes) was detected in East and Southeast Asia. Only seven haplotypes were observed outside this region (in the Americas, Hawai’i, Africa and India), which were identical or closely related to haplotypes found in East and Southeast Asia. Phylogenetic patterns indicate the L. exotica clade originated and diversified in East and Southeast Asia, and only members of one of the divergent lineages have spread out of this region, recently, suggesting the potential to become invasive is phylogenetically constrained.https://peerj.com/articles/4337.pdfCryptogenicCosmopolitanOld worldNew worldGulf of Mexico |
| spellingShingle | Luis A. Hurtado Mariana Mateos Chang Wang Carlos A. Santamaria Jongwoo Jung Valiallah Khalaji-Pirbalouty Won Kim Out of Asia: mitochondrial evolutionary history of the globally introduced supralittoral isopod Ligia exotica PeerJ Cryptogenic Cosmopolitan Old world New world Gulf of Mexico |
| title | Out of Asia: mitochondrial evolutionary history of the globally introduced supralittoral isopod Ligia exotica |
| title_full | Out of Asia: mitochondrial evolutionary history of the globally introduced supralittoral isopod Ligia exotica |
| title_fullStr | Out of Asia: mitochondrial evolutionary history of the globally introduced supralittoral isopod Ligia exotica |
| title_full_unstemmed | Out of Asia: mitochondrial evolutionary history of the globally introduced supralittoral isopod Ligia exotica |
| title_short | Out of Asia: mitochondrial evolutionary history of the globally introduced supralittoral isopod Ligia exotica |
| title_sort | out of asia mitochondrial evolutionary history of the globally introduced supralittoral isopod ligia exotica |
| topic | Cryptogenic Cosmopolitan Old world New world Gulf of Mexico |
| url | https://peerj.com/articles/4337.pdf |
| work_keys_str_mv | AT luisahurtado outofasiamitochondrialevolutionaryhistoryofthegloballyintroducedsupralittoralisopodligiaexotica AT marianamateos outofasiamitochondrialevolutionaryhistoryofthegloballyintroducedsupralittoralisopodligiaexotica AT changwang outofasiamitochondrialevolutionaryhistoryofthegloballyintroducedsupralittoralisopodligiaexotica AT carlosasantamaria outofasiamitochondrialevolutionaryhistoryofthegloballyintroducedsupralittoralisopodligiaexotica AT jongwoojung outofasiamitochondrialevolutionaryhistoryofthegloballyintroducedsupralittoralisopodligiaexotica AT valiallahkhalajipirbalouty outofasiamitochondrialevolutionaryhistoryofthegloballyintroducedsupralittoralisopodligiaexotica AT wonkim outofasiamitochondrialevolutionaryhistoryofthegloballyintroducedsupralittoralisopodligiaexotica |