Wing shape and size of the western corn rootworm (Coleoptera: Chrysomelidae) is related to sex and resistance to soybean-maize crop rotation

K. M. Mikac, J. Douglas, J. L. Spencer

Research output: Contribution to journalReview article

Abstract

The western corn rootworm, Diabrotica virgifera virgifera LeConte, is a major pest of maize in the United States and more recently, Europe. Understanding the dispersal dynamics of this species will provide crucial information for its management. This study used geometric morphometric analysis of hind wing venation based on 13 landmarks in 223 specimens from nine locations in Illinois, Nebraska, Iowa, and Missouri, to assess whether wing shape and size differed between rotated and continuously grown maize where crop rotation-resistant and susceptible individuals are found, respectively. Before assessing differences between rotation-resistant and susceptible individuals, sexual dimorphism was investigated. No significant difference in wing (centroid) size was found between males and females; however, females had significantly different shaped (more elongated) wings compared with males. Wing shape and (centroid) size were significantly larger among individuals from rotated maize where crop-rotation resistance was reported; however, cross-validation of these results revealed that collection site resistance status was an only better than average predictor of shape in males and females. This study provides preliminary evidence of wing shape and size differences in D. v. virgifera from rotated versus continuous maize. Further study is needed to confirm whether wing shape and size can be used to track the movement of rotation-resistant individuals and populations as a means to better inform management strategies.

Original languageEnglish (US)
Pages (from-to)1517-1524
Number of pages8
JournalJournal of economic entomology
Volume106
Issue number4
DOIs
StatePublished - Aug 1 2013

Fingerprint

Diabrotica virgifera virgifera
crop rotation
Chrysomelidae
soybean
maize
soybeans
Coleoptera
corn
gender
information management
sexual dimorphism
pests

Keywords

  • Diabrotica virgifera virgifera
  • centroid size
  • crop rotation resistance
  • dispersal

ASJC Scopus subject areas

  • Ecology
  • Insect Science

Cite this

Wing shape and size of the western corn rootworm (Coleoptera : Chrysomelidae) is related to sex and resistance to soybean-maize crop rotation. / Mikac, K. M.; Douglas, J.; Spencer, J. L.

In: Journal of economic entomology, Vol. 106, No. 4, 01.08.2013, p. 1517-1524.

Research output: Contribution to journalReview article

@article{1c1ff606d2394a33b85da4bdaf634801,
title = "Wing shape and size of the western corn rootworm (Coleoptera: Chrysomelidae) is related to sex and resistance to soybean-maize crop rotation",
abstract = "The western corn rootworm, Diabrotica virgifera virgifera LeConte, is a major pest of maize in the United States and more recently, Europe. Understanding the dispersal dynamics of this species will provide crucial information for its management. This study used geometric morphometric analysis of hind wing venation based on 13 landmarks in 223 specimens from nine locations in Illinois, Nebraska, Iowa, and Missouri, to assess whether wing shape and size differed between rotated and continuously grown maize where crop rotation-resistant and susceptible individuals are found, respectively. Before assessing differences between rotation-resistant and susceptible individuals, sexual dimorphism was investigated. No significant difference in wing (centroid) size was found between males and females; however, females had significantly different shaped (more elongated) wings compared with males. Wing shape and (centroid) size were significantly larger among individuals from rotated maize where crop-rotation resistance was reported; however, cross-validation of these results revealed that collection site resistance status was an only better than average predictor of shape in males and females. This study provides preliminary evidence of wing shape and size differences in D. v. virgifera from rotated versus continuous maize. Further study is needed to confirm whether wing shape and size can be used to track the movement of rotation-resistant individuals and populations as a means to better inform management strategies.",
keywords = "Diabrotica virgifera virgifera, centroid size, crop rotation resistance, dispersal",
author = "Mikac, {K. M.} and J. Douglas and Spencer, {J. L.}",
year = "2013",
month = "8",
day = "1",
doi = "10.1603/EC13010",
language = "English (US)",
volume = "106",
pages = "1517--1524",
journal = "Journal of Economic Entomology",
issn = "0022-0493",
publisher = "Entomological Society of America",
number = "4",

}

TY - JOUR

T1 - Wing shape and size of the western corn rootworm (Coleoptera

T2 - Chrysomelidae) is related to sex and resistance to soybean-maize crop rotation

AU - Mikac, K. M.

AU - Douglas, J.

AU - Spencer, J. L.

PY - 2013/8/1

Y1 - 2013/8/1

N2 - The western corn rootworm, Diabrotica virgifera virgifera LeConte, is a major pest of maize in the United States and more recently, Europe. Understanding the dispersal dynamics of this species will provide crucial information for its management. This study used geometric morphometric analysis of hind wing venation based on 13 landmarks in 223 specimens from nine locations in Illinois, Nebraska, Iowa, and Missouri, to assess whether wing shape and size differed between rotated and continuously grown maize where crop rotation-resistant and susceptible individuals are found, respectively. Before assessing differences between rotation-resistant and susceptible individuals, sexual dimorphism was investigated. No significant difference in wing (centroid) size was found between males and females; however, females had significantly different shaped (more elongated) wings compared with males. Wing shape and (centroid) size were significantly larger among individuals from rotated maize where crop-rotation resistance was reported; however, cross-validation of these results revealed that collection site resistance status was an only better than average predictor of shape in males and females. This study provides preliminary evidence of wing shape and size differences in D. v. virgifera from rotated versus continuous maize. Further study is needed to confirm whether wing shape and size can be used to track the movement of rotation-resistant individuals and populations as a means to better inform management strategies.

AB - The western corn rootworm, Diabrotica virgifera virgifera LeConte, is a major pest of maize in the United States and more recently, Europe. Understanding the dispersal dynamics of this species will provide crucial information for its management. This study used geometric morphometric analysis of hind wing venation based on 13 landmarks in 223 specimens from nine locations in Illinois, Nebraska, Iowa, and Missouri, to assess whether wing shape and size differed between rotated and continuously grown maize where crop rotation-resistant and susceptible individuals are found, respectively. Before assessing differences between rotation-resistant and susceptible individuals, sexual dimorphism was investigated. No significant difference in wing (centroid) size was found between males and females; however, females had significantly different shaped (more elongated) wings compared with males. Wing shape and (centroid) size were significantly larger among individuals from rotated maize where crop-rotation resistance was reported; however, cross-validation of these results revealed that collection site resistance status was an only better than average predictor of shape in males and females. This study provides preliminary evidence of wing shape and size differences in D. v. virgifera from rotated versus continuous maize. Further study is needed to confirm whether wing shape and size can be used to track the movement of rotation-resistant individuals and populations as a means to better inform management strategies.

KW - Diabrotica virgifera virgifera

KW - centroid size

KW - crop rotation resistance

KW - dispersal

UR - http://www.scopus.com/inward/record.url?scp=84881625472&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84881625472&partnerID=8YFLogxK

U2 - 10.1603/EC13010

DO - 10.1603/EC13010

M3 - Review article

C2 - 24020261

AN - SCOPUS:84881625472

VL - 106

SP - 1517

EP - 1524

JO - Journal of Economic Entomology

JF - Journal of Economic Entomology

SN - 0022-0493

IS - 4

ER -