Complex multiple introductions drive fall armyworm invasions into Asia and Australia
Abstract The fall armyworm (FAW) Spodoptera frugiperda is thought to have undergone a rapid ‘west-to-east’ spread since 2016 when it was first identified in western Africa. Between 2018 and 2020, it was recorded from South Asia (SA), Southeast Asia (SEA), East Asia (EA), and Pacific/Australia (PA)....
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2023-01-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-023-27501-x |
| _version_ | 1797952518255280128 |
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| author | Rahul Rane Thomas K. Walsh Pauline Lenancker Andrew Gock Thi Hang Dao Van Liem Nguyen Thein Nyunt Khin Divina Amalin Khonesavanh Chittarath Muhammad Faheem Sivapragasam Annamalai Sathis Sri Thanarajoo Y. Andi Trisyono Sathya Khay Juil Kim Lastus Kuniata Kevin Powell Andrew Kalyebi Michael H. Otim Kiwoong Nam Emmanuelle d’Alençon Karl H. J. Gordon Wee Tek Tay |
| author_facet | Rahul Rane Thomas K. Walsh Pauline Lenancker Andrew Gock Thi Hang Dao Van Liem Nguyen Thein Nyunt Khin Divina Amalin Khonesavanh Chittarath Muhammad Faheem Sivapragasam Annamalai Sathis Sri Thanarajoo Y. Andi Trisyono Sathya Khay Juil Kim Lastus Kuniata Kevin Powell Andrew Kalyebi Michael H. Otim Kiwoong Nam Emmanuelle d’Alençon Karl H. J. Gordon Wee Tek Tay |
| author_sort | Rahul Rane |
| collection | DOAJ |
| description | Abstract The fall armyworm (FAW) Spodoptera frugiperda is thought to have undergone a rapid ‘west-to-east’ spread since 2016 when it was first identified in western Africa. Between 2018 and 2020, it was recorded from South Asia (SA), Southeast Asia (SEA), East Asia (EA), and Pacific/Australia (PA). Population genomic analyses enabled the understanding of pathways, population sources, and gene flow in this notorious agricultural pest species. Using neutral single nucleotide polymorphic (SNP) DNA markers, we detected genome introgression that suggested most populations in this study were overwhelmingly C- and R-strain hybrids (n = 252/262). SNP and mitochondrial DNA markers identified multiple introductions that were most parsimoniously explained by anthropogenic-assisted spread, i.e., associated with international trade of live/fresh plants and plant products, and involved ‘bridgehead populations’ in countries to enable successful pest establishment in neighbouring countries. Distinct population genomic signatures between Myanmar and China do not support the ‘African origin spread’ nor the ‘Myanmar source population to China’ hypotheses. Significant genetic differentiation between populations from different Australian states supported multiple pathways involving distinct SEA populations. Our study identified Asia as a biosecurity hotspot and a FAW genetic melting pot, and demonstrated the use of genome analysis to disentangle preventable human-assisted pest introductions from unpreventable natural pest spread. |
| first_indexed | 2024-04-10T22:48:42Z |
| format | Article |
| id | doaj.art-e433f663e45b41378282ca6335f01ce3 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-10T22:48:42Z |
| publishDate | 2023-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-e433f663e45b41378282ca6335f01ce32023-01-15T12:12:48ZengNature PortfolioScientific Reports2045-23222023-01-0113111810.1038/s41598-023-27501-xComplex multiple introductions drive fall armyworm invasions into Asia and AustraliaRahul Rane0Thomas K. Walsh1Pauline Lenancker2Andrew Gock3Thi Hang Dao4Van Liem Nguyen5Thein Nyunt Khin6Divina Amalin7Khonesavanh Chittarath8Muhammad Faheem9Sivapragasam Annamalai10Sathis Sri Thanarajoo11Y. Andi Trisyono12Sathya Khay13Juil Kim14Lastus Kuniata15Kevin Powell16Andrew Kalyebi17Michael H. Otim18Kiwoong Nam19Emmanuelle d’Alençon20Karl H. J. Gordon21Wee Tek Tay22CSIRO, 343 Royal Parade, ParkvilleCSIRO, Black Mountain LaboratoriesSugar Research AustraliaCSIRO, Black Mountain LaboratoriesPlant Protection Research InstitutePlant Protection Research InstituteDepartment of Agricultural Research, YezinDepartment of Biology, De La Salle UniversityDepartment of Agriculture, Plant Protection CenterCAB International Southeast Asia, SerdangCAB International Southeast Asia, SerdangCAB International Southeast Asia, SerdangDepartment of Plant Protection, Faculty of Agriculture, Universitas Gadjah MadaPlant Protection Division of CARDI, Ministry of Agriculture, Forestry and FisheriesCollege of Agriculture and Life Science, Kangwon National UniversityNew Britain Palm Oil, Ramu Agri Industry Ltd.Sugar Research AustraliaAJSKNational Crops Resources Research InstituteDGIMI, Université Montpellier, INRAEDGIMI, Université Montpellier, INRAECSIRO, Black Mountain LaboratoriesCSIRO, Black Mountain LaboratoriesAbstract The fall armyworm (FAW) Spodoptera frugiperda is thought to have undergone a rapid ‘west-to-east’ spread since 2016 when it was first identified in western Africa. Between 2018 and 2020, it was recorded from South Asia (SA), Southeast Asia (SEA), East Asia (EA), and Pacific/Australia (PA). Population genomic analyses enabled the understanding of pathways, population sources, and gene flow in this notorious agricultural pest species. Using neutral single nucleotide polymorphic (SNP) DNA markers, we detected genome introgression that suggested most populations in this study were overwhelmingly C- and R-strain hybrids (n = 252/262). SNP and mitochondrial DNA markers identified multiple introductions that were most parsimoniously explained by anthropogenic-assisted spread, i.e., associated with international trade of live/fresh plants and plant products, and involved ‘bridgehead populations’ in countries to enable successful pest establishment in neighbouring countries. Distinct population genomic signatures between Myanmar and China do not support the ‘African origin spread’ nor the ‘Myanmar source population to China’ hypotheses. Significant genetic differentiation between populations from different Australian states supported multiple pathways involving distinct SEA populations. Our study identified Asia as a biosecurity hotspot and a FAW genetic melting pot, and demonstrated the use of genome analysis to disentangle preventable human-assisted pest introductions from unpreventable natural pest spread.https://doi.org/10.1038/s41598-023-27501-x |
| spellingShingle | Rahul Rane Thomas K. Walsh Pauline Lenancker Andrew Gock Thi Hang Dao Van Liem Nguyen Thein Nyunt Khin Divina Amalin Khonesavanh Chittarath Muhammad Faheem Sivapragasam Annamalai Sathis Sri Thanarajoo Y. Andi Trisyono Sathya Khay Juil Kim Lastus Kuniata Kevin Powell Andrew Kalyebi Michael H. Otim Kiwoong Nam Emmanuelle d’Alençon Karl H. J. Gordon Wee Tek Tay Complex multiple introductions drive fall armyworm invasions into Asia and Australia Scientific Reports |
| title | Complex multiple introductions drive fall armyworm invasions into Asia and Australia |
| title_full | Complex multiple introductions drive fall armyworm invasions into Asia and Australia |
| title_fullStr | Complex multiple introductions drive fall armyworm invasions into Asia and Australia |
| title_full_unstemmed | Complex multiple introductions drive fall armyworm invasions into Asia and Australia |
| title_short | Complex multiple introductions drive fall armyworm invasions into Asia and Australia |
| title_sort | complex multiple introductions drive fall armyworm invasions into asia and australia |
| url | https://doi.org/10.1038/s41598-023-27501-x |
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