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2020:groups:g3:start [2020/01/08 20:39] menezes2020:groups:g3:start [2024/01/09 18:45] (current) – external edit 127.0.0.1
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-//Wolbachia// is a bacteria that infect a wide range of Arthropods. This particular bacterial infection is maternally inherited and often result in bacterial manipulation of host reproduction dynamics. One of the main host reproduction manipulations of //Wolbachia// is Male-killing (MK).+//Wolbachia// is a bacteria that infects a wide range of Arthropods. This particular bacterial infection is maternally inherited and often result in bacterial manipulation of host reproduction dynamics. One of the main host reproduction manipulations of //Wolbachia// is Male-killing (MK).
  
 MK //Wolbachia// leads to the mortality of all female’s male offspring in the fruitfly //Drosophila// //innubila//, resulting in an all-female cohort (**Figure 1**). Due to a high frequency of this mechanism in nature it was investigated the possible advantages MK could provide to host. In an experimental study, Unckless & Jaenike (2011) found that surviving (and infected) daughters benefit from the death of their brothers through some form of fitness compensation (e.g. resource reallocation) and that //Wolbachia// infection could increase fecundity in nutrient-deprived flies. These mechanisms are beneficial to //Wolbachia// since it ensures the vertical spread of infection. MK //Wolbachia// leads to the mortality of all female’s male offspring in the fruitfly //Drosophila// //innubila//, resulting in an all-female cohort (**Figure 1**). Due to a high frequency of this mechanism in nature it was investigated the possible advantages MK could provide to host. In an experimental study, Unckless & Jaenike (2011) found that surviving (and infected) daughters benefit from the death of their brothers through some form of fitness compensation (e.g. resource reallocation) and that //Wolbachia// infection could increase fecundity in nutrient-deprived flies. These mechanisms are beneficial to //Wolbachia// since it ensures the vertical spread of infection.
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 ===== Assignment ===== ===== Assignment =====
  
-Propose and analyze a mathematical model in order to elucidate this dynamics.+Propose and analyze a mathematical model to elucidate this dynamics.
  
-===== Questions & Suggestions =====+===== Suggested questions =====
  
-  * Investigate the system response to varying degrees of maternal inheritance of MK //Wolbachia// infection. How can infected host population establish and dominate?+  * Investigate the system'response to varying degrees of maternal inheritance of MK //Wolbachia// infection. How can infected host population establish and dominate?
  
   * It has been proposed that //Wolbachia// infections can lead to an increase in fecundity. According to your model, in which situations does infected and uninfected females coexist?   * It has been proposed that //Wolbachia// infections can lead to an increase in fecundity. According to your model, in which situations does infected and uninfected females coexist?
  
   * Under which circumstances MK //Wolbachia// infection can lead to system collapse?   * Under which circumstances MK //Wolbachia// infection can lead to system collapse?
 +
 +
 +Further well-grounded questions from the group are welcome.
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 +
  
          
 ===== References ===== ===== References =====
  
-  * Unckless, R. L., & Jaenike, J. (2011). Maintenance of a male-killing //Wolbachia// in //Drosophila innubila// by male-killing dependent and male-killing independent mechanisms. Evolution, 66(3), 678–689. doi:10.1111/j.1558-5646.2011.01485.x +  * Unckless, R. L., & Jaenike, J. (2011). Maintenance of a male-killing //Wolbachia// in //Drosophila innubila// by male-killing dependent and male-killing independent mechanisms. Evolution, 66(3), 678–689. doi:10.1111/j.1558-5646.2011.01485.x [[https://onlinelibrary.wiley.com/doi/full/10.1111/j.1558-5646.2011.01485.x]] 
-  * Sullivan, J., & Jaenike, J. (2006). Male-killing Wolbachia and male mate choice: a test with Drosophila innubila. Evolutionary Ecology Research, 8(1), 91-102.+  * Sullivan, J., & Jaenike, J. (2006). Male-killing Wolbachia and male mate choice: a test with Drosophila innubila. Evolutionary Ecology Research, 8(1), 91-102. [[http://www.evolutionary-ecology.com/abstracts/v08/1968.html]]
  
2020/groups/g3/start.1578515948.txt.gz · Last modified: 2024/01/09 18:45 (external edit)