Patterns of Genome-Wide Variation, Population Differentiation and SNP Discovery of the Red Banded Stink Bug (Piezodorus guildinii)

Abstract Unravelling the details of range expansion and ecological dominance shifts of insect pests has been challenging due to the lack of basic knowledge about population structure, gene flow, and most importantly, how natural selection is affecting the adaptive process. Piezodous guildinii is an...

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Autores principales:	Maria I. Zucchi, Erick M. G. Cordeiro, Clint Allen, Mariana Novello, João Paulo Gomes Viana, Patrick J. Brown, Shilpa Manjunatha, Celso Omoto, José Baldin Pinheiro, Steven J. Clough
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2019
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/cce3d62176ed48a98f1e7605944f3039
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spelling	oai:doaj.org-article:cce3d62176ed48a98f1e7605944f30392021-12-02T15:08:10ZPatterns of Genome-Wide Variation, Population Differentiation and SNP Discovery of the Red Banded Stink Bug (Piezodorus guildinii)10.1038/s41598-019-50999-z2045-2322https://doaj.org/article/cce3d62176ed48a98f1e7605944f30392019-10-01T00:00:00Zhttps://doi.org/10.1038/s41598-019-50999-zhttps://doaj.org/toc/2045-2322Abstract Unravelling the details of range expansion and ecological dominance shifts of insect pests has been challenging due to the lack of basic knowledge about population structure, gene flow, and most importantly, how natural selection is affecting the adaptive process. Piezodous guildinii is an emerging pest of soybean in the southern region of the United States, and increasingly important in Brazil in recent years. However, the reasons P. guildinii is gradually becoming more of a problem are questions still mostly unanswered. Here, we have genotyped P. guildinii samples and discovered 1,337 loci containing 4,083 variant sites SNPs that were used to estimate genetic structure and to identify gene candidates under natural selection. Our results revealed the existence of a significant genetic structure separating populations according to their broad geographic origin, i.e., U.S. and Brazil, supported by AMOVA (FGT = 0.26), STRUCTURE, PCA, and FST analyses. High levels of gene flow or coancestry within groups (i.e., within countries) can be inferred from the data, and no spatial pattern was apparent at the finer scale in Brazil. Samples from different seasons show more heterogeneous compositions suggesting mixed ancestry and a more complex dynamic. Lastly, we were able to detect and successfully annotated 123 GBS loci (10.5%) under positive selection. The gene ontology (GO) analysis implicated candidate genes under selection with genome reorganization, neuropeptides, and energy mobilization. We discuss how these findings could be related to recent outbreaks and suggest how new efforts directed to better understand P. guildinii population dynamics.Maria I. ZucchiErick M. G. CordeiroClint AllenMariana NovelloJoão Paulo Gomes VianaPatrick J. BrownShilpa ManjunathaCelso OmotoJosé Baldin PinheiroSteven J. CloughNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 9, Iss 1, Pp 1-11 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Maria I. Zucchi Erick M. G. Cordeiro Clint Allen Mariana Novello João Paulo Gomes Viana Patrick J. Brown Shilpa Manjunatha Celso Omoto José Baldin Pinheiro Steven J. Clough Patterns of Genome-Wide Variation, Population Differentiation and SNP Discovery of the Red Banded Stink Bug (Piezodorus guildinii)
description	Abstract Unravelling the details of range expansion and ecological dominance shifts of insect pests has been challenging due to the lack of basic knowledge about population structure, gene flow, and most importantly, how natural selection is affecting the adaptive process. Piezodous guildinii is an emerging pest of soybean in the southern region of the United States, and increasingly important in Brazil in recent years. However, the reasons P. guildinii is gradually becoming more of a problem are questions still mostly unanswered. Here, we have genotyped P. guildinii samples and discovered 1,337 loci containing 4,083 variant sites SNPs that were used to estimate genetic structure and to identify gene candidates under natural selection. Our results revealed the existence of a significant genetic structure separating populations according to their broad geographic origin, i.e., U.S. and Brazil, supported by AMOVA (FGT = 0.26), STRUCTURE, PCA, and FST analyses. High levels of gene flow or coancestry within groups (i.e., within countries) can be inferred from the data, and no spatial pattern was apparent at the finer scale in Brazil. Samples from different seasons show more heterogeneous compositions suggesting mixed ancestry and a more complex dynamic. Lastly, we were able to detect and successfully annotated 123 GBS loci (10.5%) under positive selection. The gene ontology (GO) analysis implicated candidate genes under selection with genome reorganization, neuropeptides, and energy mobilization. We discuss how these findings could be related to recent outbreaks and suggest how new efforts directed to better understand P. guildinii population dynamics.
format	article
author	Maria I. Zucchi Erick M. G. Cordeiro Clint Allen Mariana Novello João Paulo Gomes Viana Patrick J. Brown Shilpa Manjunatha Celso Omoto José Baldin Pinheiro Steven J. Clough
author_facet	Maria I. Zucchi Erick M. G. Cordeiro Clint Allen Mariana Novello João Paulo Gomes Viana Patrick J. Brown Shilpa Manjunatha Celso Omoto José Baldin Pinheiro Steven J. Clough
author_sort	Maria I. Zucchi
title	Patterns of Genome-Wide Variation, Population Differentiation and SNP Discovery of the Red Banded Stink Bug (Piezodorus guildinii)
title_short	Patterns of Genome-Wide Variation, Population Differentiation and SNP Discovery of the Red Banded Stink Bug (Piezodorus guildinii)
title_full	Patterns of Genome-Wide Variation, Population Differentiation and SNP Discovery of the Red Banded Stink Bug (Piezodorus guildinii)
title_fullStr	Patterns of Genome-Wide Variation, Population Differentiation and SNP Discovery of the Red Banded Stink Bug (Piezodorus guildinii)
title_full_unstemmed	Patterns of Genome-Wide Variation, Population Differentiation and SNP Discovery of the Red Banded Stink Bug (Piezodorus guildinii)
title_sort	patterns of genome-wide variation, population differentiation and snp discovery of the red banded stink bug (piezodorus guildinii)
publisher	Nature Portfolio
publishDate	2019
url	https://doaj.org/article/cce3d62176ed48a98f1e7605944f3039
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Patterns of Genome-Wide Variation, Population Differentiation and SNP Discovery of the Red Banded Stink Bug (Piezodorus guildinii)

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