חיפוש מתקדם
Science
  1. Anna G. Himler 
  2. Tetsuya Adachi-Hagimori 
  3. Jacqueline E. Bergen 
  4. Amaranta Kozuch, 
  5. Suzanne E. Kelly, 
  6. Bruce E. Tabashnik, 
  7. Elad Chiel 
  8. Victoria E. Duckworth 
  9. Timothy J. Dennehy 
  10. Einat Zchori-Fein 
  11. Martha S. Hunter

Maternally inherited bacterial symbionts of arthropods are common, yet symbiont invasions of host populations have rarely been observed. Here, we show that Rickettsia sp. nr. bellii swept into a population of an invasive agricultural pest, the sweet potato whitefly, Bemisia tabaci, in just 6 years. Compared with uninfected whiteflies, Rickettsia-infected whiteflies produced more offspring, had higher survival to adulthood, developed faster, and produced a higher proportion of daughters. The symbiont thus functions as both mutualist and reproductive manipulator. The observed increased performance and sex-ratio bias of infected whiteflies are sufficient to explain the spread of Rickettsia across the southwestern United States. Symbiont invasions such as this represent a sudden evolutionary shift for the host, with potentially large impacts on its ecology and invasiveness.

פותח על ידי קלירמאש פתרונות בע"מ -
הספר "אוצר וולקני"
אודות
תנאי שימוש
Rapid Spread of a Bacterial Symbiont in an Invasive Whitefly Is Driven by Fitness Benefits and Female Bias
  1. Anna G. Himler 
  2. Tetsuya Adachi-Hagimori 
  3. Jacqueline E. Bergen 
  4. Amaranta Kozuch, 
  5. Suzanne E. Kelly, 
  6. Bruce E. Tabashnik, 
  7. Elad Chiel 
  8. Victoria E. Duckworth 
  9. Timothy J. Dennehy 
  10. Einat Zchori-Fein 
  11. Martha S. Hunter
Rapid Spread of a Bacterial Symbiont in an Invasive Whitefly Is Driven by Fitness Benefits and Female Bias

Maternally inherited bacterial symbionts of arthropods are common, yet symbiont invasions of host populations have rarely been observed. Here, we show that Rickettsia sp. nr. bellii swept into a population of an invasive agricultural pest, the sweet potato whitefly, Bemisia tabaci, in just 6 years. Compared with uninfected whiteflies, Rickettsia-infected whiteflies produced more offspring, had higher survival to adulthood, developed faster, and produced a higher proportion of daughters. The symbiont thus functions as both mutualist and reproductive manipulator. The observed increased performance and sex-ratio bias of infected whiteflies are sufficient to explain the spread of Rickettsia across the southwestern United States. Symbiont invasions such as this represent a sudden evolutionary shift for the host, with potentially large impacts on its ecology and invasiveness.

Scientific Publication
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