Diversity of Boll Weevil Populations in South America: A Phylogeographic Approach

Scataglini, M. Amalia; Lanteri, Analía Alicia; Confalonieri, Viviana A.

doi:10.1007/s10709-005-1399-2

Cited by 37 publications

(59 citation statements)

References 64 publications

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“…Sequencing and PCR products were cleaned with Þne DNA grade Sephadex columns (GE Healthcare, Little Chalfont, Buckinghamshire, United Kingdom), following the manufacturerÕs instructions. We sequenced COI from more individuals than other loci because we anticipated a higher mutation rate and resolution of intraspeciÞc genetic structure than for the nuclear genes and because this locus was previously used for analysis of A. grandis (Scataglini et al 2006). Nucleotide sequences described in this article have been deposited in GenBank under the following accession numbers: AK, JQ894407ÐJQ894430; CAD, JQ894431ÐJQ894452; COI, JQ894340 ÐJQ894406; EF-1␣, JQ894471ÐJQ894490; and ITSII, JQ894453Ð JQ894470, AY882992ÐAY83003, EF194205ÐEF194224, and EU215423.…”

Section: Methodsmentioning

confidence: 99%

“…The boll weevil, Anthonomus grandis grandis Boheman (Coleoptera: Curculionidae), has been a major pest of commercial cotton (genus Gossypium) in the United States for more than a century and is still of agricultural concern in southern Texas and parts of northern Mexico and Central and South America (Burke et al 1986, Scataglini et al 2006, Stadler and Buteler 2007. The Swedish entomologist C. H. Boheman described A. grandis grandis in 1843 from a specimen collected in Veracruz, Mexico.…”

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confidence: 99%

“…Re-search addressing phylogenetic or cladistic relationships of wild host-associated boll weevils by using molecular data are sparse and limited thus far to studies of weevils obtained from a single wild cotton host (Gossypium thurberi Todaro) (Roehrdanz 2001) and to weevil samples from cultivated and wild vegetation in South America (Scataglini et al 2000(Scataglini et al , 2006.…”

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confidence: 99%

“…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).…”

mentioning

confidence: 99%

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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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Section: Methodsmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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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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show abstract

“…For exa-mple, Nilsson et al (2006) found that up to 20% of fungal sequences on GenBank may be incorrectly identified to species level. An example from Ramsuran (2004) illustrates the problem for insects: a supposed boll weevil (Anthonomus grandis) COI sequence in GenBank (accession number AY266628, Scataglini et al 2006) shows up to 30% sequence divergence from other boll weevil COI sequences, yet it is a 100% match to two Dichroplus elongatus grasshopper sequences (AY014345 and AF260551). Clearly, the boll weevil sequence is erroneous, yet GenBank will not correct such errors unless the original author updates them.…”

Section: Does Dna Barcoding Work?mentioning

confidence: 99%