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31 December 2018 Genetic Structure of Liriomyza trifolii (Diptera: Agromyzidae) Associated With Host Plants From Southeastern Mexico
Jessica Pérez-Alquicira, Esther van der Knaap, Kristin Mercer, Leah McHale, Thomas Mitchell, Jose Luna-Ruiz, Esther Texocotitla-Vázquez, Ofelia Vargas-Ponce, Andy Michel
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Abstract

Host-associated differentiation (HAD) has played a major role in insect diversification at both macroevolutionary and microevolutionary scales.This evolutionary process has been reported in insects associated with wild and domesticated plant species. In particular, domesticated species harbor large genetic and phenotypic diversity associated with traits of human interest, including variation in nutrition, phenology, fruit, and leaf shape.This diversity may alter selection regimes affecting insect evolution and host specialization.The genus Liriomyza includes highly polyphagous species that are characterized for living and feeding inside plant leaves. Ecological and genetic data suggest the presence of cryptic species within this genus. Moreover, there is evidence of HAD in a group of populations of Liriomyza trifolii (Burgess) associated with Capsicum annum L. (Solanaceae). In this work, we explored HAD in L. trifolii populations from southeastern Mexico, and inquire into differentiation specific to peppers based on cytochrome oxidase I. We also evaluated the relationship between the genetic structure of leafminers and the different types of C. annuum. Our main results did not support previous findings of specialization of L. trifolli on C. annuum. Nevertheless, we found a divergent group of haplotypes associated to Allium cepa (Aspargales: Amaryllidaceae) in sympatric condition to Physalis philadelphica Lam. (Solanales: Solanaceae) and C. annum, suggesting the presence of HAD, as well as significant genetic differentiation of L. trifolii associated to peppers from Oaxaca and Yucatán.

© The Author(s) 2018. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.
Jessica Pérez-Alquicira, Esther van der Knaap, Kristin Mercer, Leah McHale, Thomas Mitchell, Jose Luna-Ruiz, Esther Texocotitla-Vázquez, Ofelia Vargas-Ponce, and Andy Michel "Genetic Structure of Liriomyza trifolii (Diptera: Agromyzidae) Associated With Host Plants From Southeastern Mexico," Environmental Entomology 48(1), 253-262, (31 December 2018). https://doi.org/10.1093/ee/nvy184
Received: 13 July 2018; Accepted: 28 November 2018; Published: 31 December 2018
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KEYWORDS
domestication
genetic diversity
host-associated differentiation
phytophagous
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