Genome Assembly and Population Sequencing Reveal Three Populations and Signatures of Insecticide Resistance of Tuta absoluta in Latin America
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Author
Lewald, Kyle M.
Tabulok, Christina A.
Godfrey, Kristine E.
Arnó, Judit
Perini, Clérison R.
Guedes, Jerson C.
Chiu, Joanna C.
Publication date
2023-04-18ISSN
1759-6653
Abstract
Tuta absoluta is one of the largest threats to tomato agriculture worldwide. Native to South America, it has rapidly spread throughout Europe, Africa, and Asia over the past two decades. To understand how T. absoluta has been so successful and to improve containment strategies, high-quality genomic resources and an understanding of population history are critical. Here, we describe a highly contiguous annotated genome assembly, as well as a genome-wide population analysis of samples collected across Latin America. The new genome assembly has an L50 of 17 with only 132 contigs. Based on hundreds of thousands of single nucleotide polymorphisms, we detect three major population clusters in Latin America with some evidence of admixture along the Andes Mountain range. Based on coalescent simulations, we find these clusters diverged from each other tens of thousands of generations ago prior to domestication of tomatoes. We further identify several genomic loci with patterns consistent with positive selection and that are related to insecticide resistance, immunity, and metabolism. This data will further future research toward genetic control strategies and inform future containment policies.
Document Type
Article
Document version
Published version
Language
English
Subject (CDU)
632 - Plant damage, injuries. Plant diseases. Pests, organisms injurious to plants. Plant protection
Pages
16
Publisher
Oxford University Press
Is part of
Genome Biology and Evolution
Citation
Lewald, Kyle M, Christine A Tabuloc, Kristine E Godfrey, Judit Arnó, Clérison R Perini, Jerson C Guedes, and Joanna C Chiu. 2023. "Genome Assembly And Population Sequencing Reveal Three Populations And Signatures Of Insecticide Resistance Of Tuta Absoluta In Latin America". Genome Biology And Evolution 15 (4). doi:10.1093/gbe/evad060.
Program
Protecció Vegetal Sostenible
This item appears in the following Collection(s)
- ARTICLES CIENTÍFICS [2555]
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Except where otherwise noted, this item's license is described as http://creativecommons.org/licenses/by/4.0/