E v o l D i r

December 1, 2012 EvolDir 19
to link quantitative traits with specific gene regions
and for establishing the genetic architecture of introgression.
The project will take advantage of the fact
that interbreeding between wild and farmed fish provides
a unique opportunity to study functional adaptations
from a general evolutionary perspective, and the
project is planned to have a strong evolutionary ecology
profile. The results of the project will form the
basis for providing advice on management of farmed
and wild trout populations to national authorities and
the European Commission.
Qualifications We are looking for a candidate who has:
Master of Science (M.Sc.) degree, or equivalent. Previous
experience in population or breeding genetics and
preferentially also ecological research. Good mathematical
skills, and potentially experience with QTL
modeling. Proficiency in written and spoken English.
Keen interest in research and for working within the
field of molecular and evolutionary ecology.
Approval and Enrolment
Scholarships for a PhD degree are subject to academic
approval, and the successful candidate will be
enrolled in one of the general degree programmes
at DTU. For information about the general requirements
for enrolment and the general planning
of the scholarship studies, please see the DTU
PhD Guide < http://www.dtu.dk/English/education/-
Phd Education/PhD guide.aspx >.
Salary and appointment terms Salary and appointment
terms are consistent with the current rules for PhD degree
students at DTU. The period of employment is 3
years.
Further information For further information about
the project, please contact Senior Scientist Dorte
Bekkevold; db@aqua.dtu.dk, or Professor Einar Eg
Nielsen, een@aqua.dtu.dk General information may
be obtained from Nina Qvistgaard, niq@aqua.dtu.dk
(+45) 3588 3090.
Application: Applications should be submitted online.
Please open the link “apply for this job online”, fill in
the application form and attach all the following documents:
1. Curriculum vitae - including a list of publications
2. A letter motivating the application
3. Grade transcripts and BSc/MSc diploma 4.
Conversion of grade averages to Danish grades
(see guidelines for the conversion here) 5. Brief research
proposal (1-2 pages) presenting ideas on how to address
the research topics given in the short description of the
PhD project above.
Deadline for application:
Applications should be received no later than 17th December
2012.
All interested candidates irrespective of age, gender,
race, religion
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DrexelU EvolutionOfSymbiosis
Subject Header: Graduate Position: DrexelUniversity.EvolutionOfSymbiosis
The Russell lab at Drexel University seeks driven and
enthusiastic Ph.D candidates to join them in the Department
of Biology for the Fall of 2013. The best
applicants will have background experience in molecular
ecology, microbiology, microscopy, or entomology.
Students would work on one of two NSF-funded grants
focused on symbiosis in aphids and ants.
The central theme in the Russell lab is the evolution
of symbiosis, and we are addressing different types of
questions in the aphid and ant systems.
First, what features correlate with the composition of
symbiotic communities across the ants? And what
do such correlations tell us about the likely causes
and consequences of symbiosis in this group? We are
specifically interested in the question of whether microbes
have facilitated the origins of herbivory across
the ants, and are using experimental and metagenomic
approaches to address this possibility.
Second, what forces favor the maintenance of diverse,
heritable symbiont communities in the pea aphid?
There are at least seven species of “secondary” symbionts
infecting aphids from this species. Five of these
are known to defend against natural enemies, and all
are found at intermediate levels within pea aphid populations.
But it has recently been shown that several
of these species exhibit strain diversity, with up to four
different strains of one symbiont existing within a single
population. Given the existence of multiple symbiont
infections, the number of cytoplasmic genotypes
harbored by pea aphids is quite large. How can such