phd studentship: testing classical and emerging evolutionary theories of ageing in ecologically relevant environments (maklakov

OPPORTUNITY DETAILS

Total reward

0 $

Nonprofit organization

University of East Anglia

Area

Central and Eastern Europe

Host Country

United Kingdom

Deadline

12 Jan 2021

Study level

Doctoral Degree

Opportunity type

PhD

Specialities

Ecology

Opportunity funding

Full funding

Eligible Countries

This opportunity is destined for all countries

Eligible Region

All Regions

Start date: 1 Oct 2021

Closing date: 12 Jan 2021

Hours: Full Time or part time (visa restrictions may apply)

Contract: Temporary

Supervisor:

Dr Alexei Maklakov, UEA

Project description:

Scientific Background

Why do organisms age? Ageing is an integral part of the life course of most species on Earth yet the evolution of ageing remains to be one of the "big" unsolved problems in biology.

This project integrates novel conceptual insights into the evolutionary biology and ecology of ageing that emerged in recent years. The dominant paradigm suggests that ageing evolves due to the competing resource allocation between life-history traits. This theory has been increasingly challenged as studies in different organisms suggest that the key life-history trade-off between reproduction and survival can be uncoupled.

The emerging idea maintains that ageing is caused by suboptimal gene expression in adulthood. This is because natural selection on development and early-life performance is strong, while selection on late-life performance is weak. At present, it is unclear which of these two theories offer a better explanation for organismal ageing.The progress in this field is impeded by the lack of studies that directly test these theories in ecologically relevant environments.

Research Methodology

You will combine the genetic “tools” available in Caenorhabditis elegans nematodes – the classical model organism in evolutionary genetics – with fitness assays in complex ecologically relevant environments. You will employ a new experimental paradigm that will allow us to test how lifespan extension via gene knockdowns in evolutionary conserved signalling pathways (IIS/TOR) that shape organismal life histories affects development, growth, behaviour, reproduction and, ultimately, fitness in rapidly changing and unpredictable environments. You will use a combination of “laboratory microcosms” and real-world experiments in the natural environment.

Training

You will gain a wide range of skills in experimental design, critical thinking, advanced statistical analyses, scientific writing, presentational skills, evolutionary ecology and evolutionary genetics. You will participate in career-enhancing external training courses. You will receive multi-disciplinary training in evolutionary ecology/biology and in bio-gerontology, thereby increasing opportunities for employability after the PhD.

Person Specification

We are looking for an enthusiastic and highly motivated candidate with deep interest in one of the following fields of research: evolution, ecology, genetics, biology of ageing.

Person specification:

Acceptable first degree in Evolution, Ecology, Genetics or Biology.

Funding notes:

For information on funding, please go here https://www.aries-dtp.ac.uk/study-with-us/eligibility/

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