Global population genomic signature of Spodoptera frugiperda (fall armyworm) supports complex introduction events across the Old World.
Authors
Walsh, Tom K
Elfekih, Samia
Downes, Sharon
Nam, Kiwong
Zhang, Jianpeng
Kunz, Daniele
Czepak, Cecilia
Otim, Michael H
Gordon, Karl HJ
Publication Date
2022-04-07Journal Title
Commun Biol
ISSN
2399-3642
Publisher
Springer Science and Business Media LLC
Volume
5
Issue
1
Language
en
Type
Article
This Version
VoR
Metadata
Show full item recordCitation
Tay, W. T., Rane, R. V., Padovan, A., Walsh, T. K., Elfekih, S., Downes, S., Nam, K., et al. (2022). Global population genomic signature of Spodoptera frugiperda (fall armyworm) supports complex introduction events across the Old World.. Commun Biol, 5 (1) https://doi.org/10.1038/s42003-022-03230-1
Description
Funder: Cotton Research and Development Corporation (CRDC); doi: https://doi.org/10.13039/501100000977
Funder: Bayer | Bayer CropScience; doi: https://doi.org/10.13039/100008791
Abstract
Native to the Americas, the invasive Spodoptera frugiperda (fall armyworm; FAW) was reported in West Africa in 2016, followed by its chronological detection across the Old World and the hypothesis of an eastward Asia expansion. We explored population genomic signatures of American and Old World FAW and identified 12 maternal mitochondrial DNA genome lineages across the invasive range. 870 high-quality nuclear single nucleotide polymorphic DNA markers identified five distinct New World population clusters, broadly reflecting FAW native geographical ranges and the absence of host-plant preferences. We identified unique admixed Old World populations, and admixed and non-admixed Asian FAW individuals, all of which suggested multiple introductions underpinning the pest's global spread. Directional gene flow from the East into eastern Africa was also detected, in contrast to the west-to-east spread hypothesis. Our study demonstrated the potential of population genomic approaches via international partnership to address global emerging pest threats and biosecurity challenges.
Keywords
Article, /631/158/2178, /631/181/2474, article
Sponsorship
Commonwealth Scientific and Industrial Research Organisation (CSIRO) (R-91044-01, R-8681-1, R-90035-14)
Identifiers
s42003-022-03230-1, 3230
External DOI: https://doi.org/10.1038/s42003-022-03230-1
This record's URL: https://www.repository.cam.ac.uk/handle/1810/335920
Rights
Licence:
http://creativecommons.org/licenses/by/4.0/
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