ex4: Carius 2001 Flashcards
what does host parasite coevolution assume?
the presence of genetic variation for host resistance and parasite infectivity
what was the host and the parasite in the study?
Daphnia magna
bacterial microparasite: P.ramosa
what does the host parasite interaction indicate the coevolution is based on?
frequency dependent selection
when was infection success greater?
host clone parasite isolate combinations isolate together rather than in the lab
what did it show parasites can track?
specific host genotypes under natural conditions
where was genetic variation found?
in D.magna susceptibility to parasite and P.ramosa infectivity to host
what did they find selection favoured?
parasites that can infect common host clones
what did the parasite likely go through?
genetic bottleneck