Sigma Virus (DMelSV) Incidence in Lines of Drosophila melanogaster Selected for Survival following Infection with Bacillus cereus

Meghan L. Bentz, Eve A. Humphrey, Lawrence G. Harshman, Marta L. Wayne

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The immune response of Drosophila melanogaster is complex and involves both specific and general responses to parasites. In this study we tested for cross-immunity for bacteria and viruses by scoring the incidence of infection with the vertically transmitted Sigma virus (DMelSV) in the progeny of a cross between females transmitting DMelSV at high frequencies and males from lines subjected to three selection regimes related to resistance to Bacillus cereus. There was no significant difference in transmission of DMelSV among selection regimes, though results suggest that the B. cereus selected lines had lower rates of infection by DMelSV. We found a significant difference in viral infection with respect to the sex of the progeny, with males consistently less likely to be infected than females. Given a finite energy budget, flies that have experienced immune system challenge may show alterations in other life history traits. Later eclosing progeny were also less likely to be infected than earlier eclosing progeny, indicating a relationship with development time. Finally, there was a significant interaction between the timing of collection and the sex of the progeny, such that later eclosing males were the most resistant group. Increased development time is sometimes associated with increased energy acquisition; from this perspective, increased development time may be associated with acquiring sufficient resources for effective resistance.

Original languageEnglish (US)
Article number3593509
JournalPsyche (London)
Volume2017
DOIs
StatePublished - Jan 1 2017

Fingerprint

Sigma virus
Bacillus cereus
Drosophila melanogaster
virus
incidence
cross immunity
infection
gender
energy
immune system
immunity
energy budget
immune response
life history trait
parasite
life history
parasites
viruses
bacterium
bacteria

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Insect Science

Cite this

Sigma Virus (DMelSV) Incidence in Lines of Drosophila melanogaster Selected for Survival following Infection with Bacillus cereus. / Bentz, Meghan L.; Humphrey, Eve A.; Harshman, Lawrence G.; Wayne, Marta L.

In: Psyche (London), Vol. 2017, 3593509, 01.01.2017.

Research output: Contribution to journalArticle

Bentz, Meghan L. ; Humphrey, Eve A. ; Harshman, Lawrence G. ; Wayne, Marta L. / Sigma Virus (DMelSV) Incidence in Lines of Drosophila melanogaster Selected for Survival following Infection with Bacillus cereus. In: Psyche (London). 2017 ; Vol. 2017.
@article{33e5d291d33a4b079c2b11ccb2aed17e,
title = "Sigma Virus (DMelSV) Incidence in Lines of Drosophila melanogaster Selected for Survival following Infection with Bacillus cereus",
abstract = "The immune response of Drosophila melanogaster is complex and involves both specific and general responses to parasites. In this study we tested for cross-immunity for bacteria and viruses by scoring the incidence of infection with the vertically transmitted Sigma virus (DMelSV) in the progeny of a cross between females transmitting DMelSV at high frequencies and males from lines subjected to three selection regimes related to resistance to Bacillus cereus. There was no significant difference in transmission of DMelSV among selection regimes, though results suggest that the B. cereus selected lines had lower rates of infection by DMelSV. We found a significant difference in viral infection with respect to the sex of the progeny, with males consistently less likely to be infected than females. Given a finite energy budget, flies that have experienced immune system challenge may show alterations in other life history traits. Later eclosing progeny were also less likely to be infected than earlier eclosing progeny, indicating a relationship with development time. Finally, there was a significant interaction between the timing of collection and the sex of the progeny, such that later eclosing males were the most resistant group. Increased development time is sometimes associated with increased energy acquisition; from this perspective, increased development time may be associated with acquiring sufficient resources for effective resistance.",
author = "Bentz, {Meghan L.} and Humphrey, {Eve A.} and Harshman, {Lawrence G.} and Wayne, {Marta L.}",
year = "2017",
month = "1",
day = "1",
doi = "10.1155/2017/3593509",
language = "English (US)",
volume = "2017",
journal = "Psyche (New York)",
issn = "0033-2615",
publisher = "Hindawi Limited",

}

TY - JOUR

T1 - Sigma Virus (DMelSV) Incidence in Lines of Drosophila melanogaster Selected for Survival following Infection with Bacillus cereus

AU - Bentz, Meghan L.

AU - Humphrey, Eve A.

AU - Harshman, Lawrence G.

AU - Wayne, Marta L.

PY - 2017/1/1

Y1 - 2017/1/1

N2 - The immune response of Drosophila melanogaster is complex and involves both specific and general responses to parasites. In this study we tested for cross-immunity for bacteria and viruses by scoring the incidence of infection with the vertically transmitted Sigma virus (DMelSV) in the progeny of a cross between females transmitting DMelSV at high frequencies and males from lines subjected to three selection regimes related to resistance to Bacillus cereus. There was no significant difference in transmission of DMelSV among selection regimes, though results suggest that the B. cereus selected lines had lower rates of infection by DMelSV. We found a significant difference in viral infection with respect to the sex of the progeny, with males consistently less likely to be infected than females. Given a finite energy budget, flies that have experienced immune system challenge may show alterations in other life history traits. Later eclosing progeny were also less likely to be infected than earlier eclosing progeny, indicating a relationship with development time. Finally, there was a significant interaction between the timing of collection and the sex of the progeny, such that later eclosing males were the most resistant group. Increased development time is sometimes associated with increased energy acquisition; from this perspective, increased development time may be associated with acquiring sufficient resources for effective resistance.

AB - The immune response of Drosophila melanogaster is complex and involves both specific and general responses to parasites. In this study we tested for cross-immunity for bacteria and viruses by scoring the incidence of infection with the vertically transmitted Sigma virus (DMelSV) in the progeny of a cross between females transmitting DMelSV at high frequencies and males from lines subjected to three selection regimes related to resistance to Bacillus cereus. There was no significant difference in transmission of DMelSV among selection regimes, though results suggest that the B. cereus selected lines had lower rates of infection by DMelSV. We found a significant difference in viral infection with respect to the sex of the progeny, with males consistently less likely to be infected than females. Given a finite energy budget, flies that have experienced immune system challenge may show alterations in other life history traits. Later eclosing progeny were also less likely to be infected than earlier eclosing progeny, indicating a relationship with development time. Finally, there was a significant interaction between the timing of collection and the sex of the progeny, such that later eclosing males were the most resistant group. Increased development time is sometimes associated with increased energy acquisition; from this perspective, increased development time may be associated with acquiring sufficient resources for effective resistance.

UR - http://www.scopus.com/inward/record.url?scp=85016516442&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85016516442&partnerID=8YFLogxK

U2 - 10.1155/2017/3593509

DO - 10.1155/2017/3593509

M3 - Article

AN - SCOPUS:85016516442

VL - 2017

JO - Psyche (New York)

JF - Psyche (New York)

SN - 0033-2615

M1 - 3593509

ER -