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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

The reunion of two lineages of the Neotropical brown stink bug on soybean lands in the heart of Brazil

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Author(s):
Soares, Patricia L. [1] ; Cordeiro, Erick M. G. [1] ; Santos, Frederico N. S. [1] ; Omoto, Celso [1] ; Correa, Alberto S. [1]
Total Authors: 5
Affiliation:
[1] Univ Sao Paulo, Dept Entomol & Acarol, Luiz de Queiroz Coll Agr USP ESALQ, BR-13418900 Piracicaba, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: SCIENTIFIC REPORTS; v. 8, FEB 6 2018.
Web of Science Citations: 7
Abstract

The rapid pace of conversion of natural areas to agricultural systems is highly concerning, and the consequences for conservation and pest management are not yet fully understood. We examined mitochondrial (COI and Cytb) and nuclear (ITS1) gene regions of 21 populations of the stink bug Euschistus heros, to investigate the genetic diversity, genetic structure, and demographic history of this emerging soybean pest in South America. Two deep lineages that diverged in the Pliocene (4.5 Myr) occur over wide areas of Brazil. Historical changes during the Plio-Pleistocene led to significant genetic differences between E. heros populations, which differentiated further in several biomes. The northern lineage is older, more diverse, and prevalent in the Amazon and Caatinga, while the southern lineage is younger, less diverse, and prevalent in the Atlantic Forest and Chaco biomes. Euschistus heros populations are expanding in size and range but at different rates, strongly affected by environmental variables. Secondary contact between the main lineages is now occurring, mainly in areas of intensive farming and particularly in the Cerrado, an important agricultural frontier. Individuals adapted to different environmental conditions and to large monocultures might currently be combining into a panmictic and hard-to-control pest population. (AU)

FAPESP's process: 14/11495-3 - A demographic and adaptive approach for the development of sustainable management strategies of pest control to the Brazilian agroecosystem
Grantee:Alberto Soares Corrêa
Support Opportunities: Research Grants - Young Investigators Grants
FAPESP's process: 17/02393-0 - Resistance to insecticide in Euchistus heros (Hemiptera: Pentatomidae): genetic diversity and association mapping of resistance genes
Grantee:Erick Mauricio Goes Cordeiro
Support Opportunities: Scholarships in Brazil - Post-Doctoral