In:
PLOS ONE, Public Library of Science (PLoS), Vol. 18, No. 4 ( 2023-4-18), p. e0284587-
Abstract:
The fall armyworm (FAW), Spodoptera frugiperda , is a significant pest of many crops in the world and it is native to the Americas, where the species has shown the ability to rapidly evolve resistance to insecticides and transgenic plants. Despite the importance of this species, there is a gap in the knowledge regarding the genetic structure of FAW in South America. Here, we examined the genetic diversity of FAW populations across a wide agricultural area of Brazil and Argentina using a Genotyping-by-Sequencing (GBS) approach. We also characterized samples by their host strain based on mitochondrial and Z-linked genetic markers. The GBS methodology enabled us to discover 3309 SNPs, including neutral and outlier markers. Data showed significant genetic structure between Brazil and Argentina populations, and also among the Argentinian ecoregions. Populations inside Brazil showed little genetic differentiation indicating high gene flow among locations and confirming that structure is related to the presence of corn and rice strains. Outlier analysis indicated 456 loci putatively under selection, including genes possibly related to resistance evolution. This study provides clarification of the population genetic structure of FAW in South America and highlights the importance of genomic research to understand the risks of spread of resistance genes.
Type of Medium:
Online Resource
ISSN:
1932-6203
DOI:
10.1371/journal.pone.0284587
DOI:
10.1371/journal.pone.0284587.g001
DOI:
10.1371/journal.pone.0284587.g002
DOI:
10.1371/journal.pone.0284587.g003
DOI:
10.1371/journal.pone.0284587.g004
DOI:
10.1371/journal.pone.0284587.g005
DOI:
10.1371/journal.pone.0284587.g006
DOI:
10.1371/journal.pone.0284587.t001
DOI:
10.1371/journal.pone.0284587.s001
DOI:
10.1371/journal.pone.0284587.s002
DOI:
10.1371/journal.pone.0284587.s003
DOI:
10.1371/journal.pone.0284587.s004
DOI:
10.1371/journal.pone.0284587.s005
DOI:
10.1371/journal.pone.0284587.s006
DOI:
10.1371/journal.pone.0284587.s007
DOI:
10.1371/journal.pone.0284587.s008
DOI:
10.1371/journal.pone.0284587.s009
Language:
English
Publisher:
Public Library of Science (PLoS)
Publication Date:
2023
detail.hit.zdb_id:
2267670-3
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