The phylogeny of acorn weevils (genus Curculio) from mitochondrial and nuclear DNA sequences: the problem of incomplete data

Hughes, Joseph; Vogler, Alfried P.

doi:10.1016/j.ympev.2004.02.007

Cited by 81 publications

(86 citation statements)

References 67 publications

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“…For amplification of ITS2 sequences primers ITS3 and ITS4 (White et al 1990) were used, for EF-a primers ef1F and ef1R (Hughes and Vogler 2004) and for AS1, primers Cl-AS1F ATCTCAGTCGA ATTGAAACG and Cl-AS1R AGTAGTCGATGGCGATG TTA. The anonymous sequence was found via 454-sequencing (Roche 454 GS-FLX System Using Titanium Chemistry) of C. leucogrammus genomic DNA.…”

Section: Methodsmentioning

confidence: 99%

Conservation genetics of xerothermic beetles in Europe: the case of Centricnemus leucogrammus

Kajtoch

2011

J Insect Conserv

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Section: Methodsmentioning

confidence: 99%

Conservation genetics of xerothermic beetles in Europe: the case of Centricnemus leucogrammus

Kajtoch

2011

J Insect Conserv

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“…Among 18 genera of the tribe, the genus Curculio is the largest and embraces about 350 described species worldwide (Alonso-Zarazaga and Lyal, 1999;Hughes and Vogler, 2004a). In most of the species whose ecological information is available, their host plant range is limited to a small number of species within a single plant genus (Morimoto, 1960(Morimoto, , 1962Hayashi et al, 1984;Fujimoto, 2004;Hughes and Vogler, 2004b). In tropical and subtropical regions, diverse Curculionini weevils are associated with figs (Moraceae), while in Europe and North America, they are infesting hard seeds such as acorns and chestnuts (Fagaceae), hazelnuts and birches (Betulaceae) and pecans and walnuts (Juglandaceae) Vogler, 2004a, 2004b).…”

Section: Curculionini Weevilsmentioning

confidence: 99%

Diversification of endosymbiosis: replacements, co-speciation and promiscuity of bacteriocyte symbionts in weevils

Toju

Tanabe

Yutaka³

et al. 2013

The ISME Journal

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The processes and mechanisms underlying the diversification of host-microbe endosymbiotic associations are of evolutionary interest. Here we investigated the bacteriocyte-associated primary symbionts of weevils wherein the ancient symbiont Nardonella has experienced two independent replacement events: once by Curculioniphilus symbiont in the lineage of Curculio and allied weevils of the tribe Curculionini, and once by Sodalis-allied symbiont in the lineage of grain weevils of the genus Sitophilus. The Curculioniphilus symbiont was detected from 27 of 36 Curculionini species examined, the symbiont phylogeny was congruent with the host weevil phylogeny, and the symbiont gene sequences exhibited AT-biased nucleotide compositions and accelerated molecular evolution. These results suggest that the Curculioniphilus symbiont was acquired by an ancestor of the tribe Curculionini, replaced the original symbiont Nardonella, and has co-speciated with the host weevils over evolutionary time, but has been occasionally lost in several host lineages. By contrast, the Sodalis-allied symbiont of Sitophilus weevils exhibited no host-symbiont co-speciation, no AT-biased nucleotide compositions and only moderately accelerated molecular evolution. These results suggest that the Sodalis-allied symbiont was certainly acquired by an ancestor of the Sitophilus weevils and replaced the original Nardonella symbiont, but the symbiotic association must have experienced occasional re-associations such as new acquisitions, horizontal transfers, replacements and/or losses. We detected Sodalis-allied facultative symbionts in populations of the Curculionini weevils, which might represent potential evolutionary sources of the Sodalis-allied primary symbionts. Comparison of these newcomer bacteriocyte-associated symbiont lineages highlights potential evolutionary trajectories and consequences of novel symbionts after independent replacements of the same ancient symbiont.

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“…To date, intraspeciÞc DNA sequence variation in boll weevil has been analyzed using two loci, the internal transcribed spacer region II (ITSII) of the nuclear ribosomal RNA (Roehrdanz 2001, Roehrdanz et al 2010) and mitochondrial cytochrome oxidase I and II (COI and COII, respectively) (Scataglini et al 2006). Here, we used sequence data from ITSII and COI plus three additional nuclear loci that have proven useful for populationlevel and shallow time phylogenetic analyses of other insect groups: nuclear elongation factor 1␣ (EF-1␣, Hughes and Vogler 2004), arginine kinase (AK), and rudimentary gene (CAD; Wild and Maddison 2008). We subjected these Þve loci to phylogenetic and coalescent analyses to evaluate the extent to which they support the classiÞcation of boll weevils into three forms (SE, TW, and MX) as opposed to only two forms, eastern and western.…”

mentioning

confidence: 99%

Population Structure and Genetic Diversity of the Boll Weevil (Coleoptera: Curculionidae) onGossypiumin North America

Kuester

Jones

Sappington

et al. 2012

Annals of the Entomological Society of America

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Although the boll weevil, Anthonomus grandis grandis Boheman (Coleoptera: Curculionidae), is a devastating pest in the United States and Mexico, its population structure and genetic diversity in Mexico on wild and cultivated cotton hosts (genus Gossypium) is poorly understood. Past studies using morphology, host use, and distribution records suggest that A.grandis grandis comprises three forms with host-associated characteristics: the southeastern form (from domesticated Gossypium hirsutum L., southeastern United States and northeastern Mexico), the thurberia form (from Gossypium thurberi Todaro, Arizona and northwestern Mexico), and the Mexican form (from multiple Gossypium species and other malvaceous plant genera in the remainder of Mexico and Central America). However, the phylogenetic relationships, host preferences, and distributions of these forms are not completely understood. An alternative hypothesis of an eastern and western form of the boll weevil is suggested by the suspected phylogeographic range expansion from an ancestral distribution in the tropics northward along both Mexican coasts, culminating in the maximally contrasting phenotypes observed in the northeastern and northwestern arms of the current distribution. In this study, we sequenced one mitochondrial and four nuclear genes to gain insight into the evolutionary relationships among the putative forms and their distributions on wild and domesticated cotton hosts. Using models of evolution, we compared the three-form to the two-form classification and to two alternative classifications that incorporate geography and host use traits. The genetic data at most loci provide stronger support for the two-form than the three-form hypothesis, with an eastern and western group separated by the Sierra Madre Occidental mountain range. They do not support separate taxonomic status for boll weevils developing onG. thurberi. RightsWorks produced by employees of the U.S. Government as part of their official duties are not copyrighted within the U.S. The content of this document is not copyrighted. ABSTRACT Although the boll weevil, Anthonomus grandis grandis Boheman (Coleoptera: Curculionidae), is a devastating pest in the United States and Mexico, its population structure and genetic diversity in Mexico on wild and cultivated cotton hosts (genus Gossypium) is poorly understood. Past studies using morphology, host use, and distribution records suggest that A. grandis grandis comprises three forms with host-associated characteristics: the southeastern form (from domesticated Gossypium hirsutum L., southeastern United States and northeastern Mexico), the thurberia form (from Gossypium thurberi Todaro, Arizona and northwestern Mexico), and the Mexican form (from multiple Gossypium species and other malvaceous plant genera in the remainder of Mexico and Central America). However, the phylogenetic relationships, host preferences, and distributions of these forms are not completely understood. An alternative hypothesis of an eastern and western form of...

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The phylogeny of acorn weevils (genus Curculio) from mitochondrial and nuclear DNA sequences: the problem of incomplete data

Cited by 81 publications

References 67 publications

Conservation genetics of xerothermic beetles in Europe: the case of Centricnemus leucogrammus

Conservation genetics of xerothermic beetles in Europe: the case of Centricnemus leucogrammus

Diversification of endosymbiosis: replacements, co-speciation and promiscuity of bacteriocyte symbionts in weevils

Population Structure and Genetic Diversity of the Boll Weevil (Coleoptera: Curculionidae) onGossypiumin North America

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