Hybridization and climate change in Alpine orchids

(BYERS_UJIC22ARIES)

Hybridization and climate change in Alpine orchids

(BYERS_UJIC22ARIES)

Project Description

Supervisors

Dr Kelsey Byers (John Innes Centre) contact me

Professor Cock Van Oosterhout (University of East Anglia, School of Environmental Sciences, Centre for Ecology, Evolution and Conservation)

Professor Enrico Coen (John Innes Centre)

 

Project Background

Hybrid populations of orchids in the European Alps produce a “natural laboratory” that enables us to study adaptive evolution in response to rapid environmental change. Alpine ecosystems are under severe threat of global warming and environmental change. Meadows on different mountains provide an outstanding study system to examine response to environmental change in a naturally replicated design. This allows us to examine parallel evolution in response to environmental change across hybrids and their ancestor species.

Project aims

The goal of this project is to understand how species persist in fragile habitats despite the challenges of hybridization and climate change. The aims are: (1) determine ancestry of hybrid orchids; (2) understand barriers preventing species collapse between parent species from (1); and (3) understand how these species may be responding to past and future climate change.

Methodology

This project combines various techniques, including field surveys of orchid populations, sequencing and analysis, and use of historical records of orchid occurrence and climate. The student will spend part of each summer in the European Alps surveying populations for flowering time and climate factors and collecting tissue for DNA analysis of hybrids and their parent species. Fieldwork will also include collection of pollinators and fruits to determine isolating barriers between parent species besides flowering time. By combining historical climate and occurrence/flowering time data, the student will determine the historical effects of climate change on populations and their potential for hybridization. Using spatial modeling/GIS, the student will also predict the effects of future climate change.

Training opportunities

The student will have the opportunity for fieldwork in the Alps as well as training in methods in both the field and lab settings. This includes methods in genetics, entomology, botany, and bioinformatics. Professional training in scientific writing and presentation, as well as development of knowledge in the field through reading, are also an integral part of this project.

Person specification

The ideal student for this project would have a background in evolution, ecology, and/or genetics. Experience working with plants and/or insects is a plus. We seek an enthusiastic, collaborative individual who is excited by interdisciplinary research!

References

  • L.A. Eserman, S.K. Thomas, E.E.D. Coffey, & J.H. Leebens-Mack (2021) Target sequence capture in orchids: Developing a kit to sequence hundreds of single-copy loci. Applications in Plant Sciences e11416.
  • C. Geppert, G. Perazza, R.J. Wilson, A. Bertolli, F. Prosser, G. Melchiori, & L. Marini (2020) Consistent population declines but idiosyncratic range shifts in Alpine orchids under global change. Nature Communications 11:5835.
  • M. Hedrén, R. Lorenz, & D. Ståhlberg (2018) Evidence for bidirectional hybridization between Gymnadenia and Nigritella. Journal Europaischer Orchideen 50:43-60.
  • B.J. Ward & C. Van Oosterhout (2015) HYBRIDCHECK: software for the rapid detection, visualization, and dating of recombinant regions in genome sequence data. Molecular Ecology Resources 16:534-539.

Key Information

  • This project has been shortlisted for funding by the ARIES NERC DTP and will start on 1st October 2022. The closing date for applications is 23:59 on 12th January 2022.
  • Successful candidates who meet UKRI’s eligibility criteria will be awarded a NERC studentship, which covers fees, stipend (£15,609 p.a. for 2021-22) and research funding. International applicants (EU and non-EU) are eligible for fully-funded UKRI studentships. Please note ARIES funding does not cover visa costs (including immigration health surcharge) or other additional costs associated with relocation to the UK.
  • ARIES students benefit from bespoke graduate training and ARIES provides £2,500 to every student for access to external training, travel and conferences. Excellent applicants from quantitative disciplines with limited experience in environmental sciences may be considered for an additional 3-month stipend to take advanced-level courses in the subject area.
  • ARIES is committed to equality, diversity, widening participation and inclusion in all areas of its operation. We encourage enquiries and applications from all sections of the community regardless of gender, ethnicity, disability, age, sexual orientation and transgender status. Academic qualifications are considered alongside non-academic experience, and our recruitment process considers potential with the same weighting as past experience.
  • All ARIES studentships may be undertaken on a part-time or full-time basis, visa requirements notwithstanding
  • For further information, please contact the supervisor. To apply for this Studentship click on the “Apply now” link below.
  • ARIES is required by our funders to collect Equality and Diversity Information from all of our applicants. The information you provide will be used solely for monitoring and statistical purposes; it will remain confidential, and will be stored on the UEA sharepoint server. Data will not be shared with those involved in making decisions on the award of Studentships, and will have no influence on the success of your application. It will only be shared outside of this group in an anonymised and aggregated form. You will be ask to complete the form by the University to which you apply.

Applications are open

Apply now