Aberdeen EastBio PhD: Plasmid Ecology and Evolution across Species

Aberdeen EastBio PhD: Plasmid Ecology and Evolution across Species

Project fit

This Aberdeen EASTBIO project asks why plasmids differ in size, frequency and gene content across bacterial hosts and ecological niches. The doctoral work is comparative bioinformatics and evolutionary inference, supported by a directly relevant 2024 preliminary study and a co-supervisor with recent ecological-genomics research. It is a useful option for biological-science applicants seeking stronger statistics, genomics and scientific-computing training.

The project notice describes a four-year competitive studentship, with the complete application and both references due 16 November 2026, 23:59 GMT. Whether applications are still being accepted is unconfirmed. Worldwide eligibility is subject to a 30% annual international share of the EASTBIO DTP intake; this is a cohort quota, not an individual award probability. Confirm the available slot and supervisor nomination before choosing the one permitted EASTBIO project, and obtain individual tuition and award conditions in writing.

Research Problem and Doctoral Work

What the comparisons are intended to explain

Plasmids are extrachromosomal genetic elements associated with many microbial traits, including metabolic functions and antibiotic resistance. The unresolved question here is which traits are disproportionately represented on plasmids rather than host chromosomes, and whether apparent patterns depend on the environment or evolutionary history. The project notes that suggestions of enrichment for cooperative traits may hold only in particular ecological niches.

The advertised questions are concrete: compare trait distributions across ecological niches; examine how plasmid size and frequency relate to distribution across host phylogeny; distinguish multi-species from species-specific plasmids; and ask how traits relate to their distribution on the host tree. The aim includes clarifying whether small and large plasmids play different ecological roles and whether within-species frequency is associated with their traits.

Training combines prokaryotic genomics and evolutionary theory, including horizontal-transfer ecology, life-history trade-offs and host–symbiont relationships. The computational categories include assembly, annotation, pangenomic analysis, phylogenetic signal, phylogenetic independent contrasts and co-phylogeny. The advertised scope is comparative computational research; no wet-laboratory work package is specified.

A credible thesis would produce reproducible comparisons with clear limits on sampling and interpretation. Relatedness can make observations non-independent; database composition, habitat labels and genome completeness can affect apparent enrichment. These are evidence-backed analytical concerns rather than newly promised work packages. The specific dataset, host range, annotation resources and daily computational workflow remain to establish.

Field context and feasible contribution

A 2025 Nature Communications soil-plasmid resource assembled 98,728 sequences from 6,860 communities and isolates, illustrating the scale of ecological data now available. Its comparisons distinguish cultivated and uncultivated organisms and habitats. This supports the relevance of careful ecological comparison, while highlighting detection and sampling limits. It is not a supervisor paper or a confirmed project dataset. A useful contribution would be defensible inference about ecological patterns, without turning association into causal proof or extrapolating a narrow taxonomic result to all bacteria. Field resource.

School, Programme and Field Context

The degree-awarding institution is the University of Aberdeen, with the project based in the School of Biological Sciences. The university lists a PhD in Biological and Environmental Sciences, with ecology, evolution, environment and ecophysiology clusters. Functional/ecological genomics and ecoevolutionary modelling provide the relevant school context. Scientific-methods and statistics courses, cohort retreats and postgraduate conferences supplement the project. The broad programme does not establish every resource or course as an individual entitlement. Official PhD environment.

For a bounded quality indicator, REF 2021 Biological Sciences, UOA 5 assessed Aberdeen's overall submission as 18% four-star, 61% three-star and 21% two-star: 79% at the top two levels. This is a historical UK submission assessment, not a global university rank or a current score for the plasmid group. A current precise subfield ranking was not established. Official REF results.

The supplied project lasts four years. EASTBIO's current training framework concentrates core activity in years 1–2, with research the main focus in years 3–4 and additional training then optional. Current requirements include a 12-week non-academic PIPS internship before the end of year 3, with planning initiated by the end of year 1. This offers professional experience rather than a guaranteed employer or job. Exact 2027 cohort dates and registration milestones still need confirmation. Training framework, PIPS requirements.

EASTBIO partner participation does not make this a joint degree. The school's generic distance-learning options also do not override the funding programme's requirement to live within commuting distance; students requiring a visa must register full time. The project limits part-time study to Home/UK students.

Supervisor and Lab Assessment

Roles and recent research evidence

Dr Tom/Thomas Vogwill is listed as a Lecturer and Dr Marius Wenzel as a Senior Lecturer, both in Biological Sciences/Aberdeen Centre for Environmental Sustainability. University profiles identify relevant outputs; institutional job titles may differ from broader EASTBIO role labels. Their complementary strengths are microbial evolution and comparative ecological genomics. Meeting frequency, group composition, daily programming support, supervision split and project-specific graduate destinations were not verified. Vogwill profile, Wenzel profile.

The relevant evidence comprises one directly related preprint and two adjacent peer-reviewed articles, not three peer-reviewed lead-supervisor plasmid papers. The first two assessments are limited to abstracts and publication records. The third article’s interpretation follows an existing analysis, but its full text is not archived here; its methods and complete findings therefore cannot be independently checked. Byline, contribution and publication-date metadata do not independently verify the scientific interpretation. These limits apply to the assessments below.

• Tom Vogwill (sole listed and corresponding author). “Bacterial chromosome size is more strongly associated with plasmid size than the number of plasmids per cell across different species of Enterobacterales.” University of Aberdeen preprint, 21 pages; repository publication date 30 June 2024. The record still labels it preprint/submitted manuscript in revision. No verified DOI, journal, volume, issue, page range, separate journal-online date or acceptance is available. Its comparison of over 7,000 chromosomes, 14,000 plasmids and 23 species associates size patterns with broad phylogenetic scale rather than universal neighbouring-species patterns. The association between chromosome size and plasmid number was no stronger than the phylogeny-based expectation. This is direct observational preliminary evidence. The available project evidence includes the official abstract and repository status, not the complete paper. Direct preliminary study.
• Ifan Lynn; Marius Wenzel. “Ephemeral signatures of phylosymbiosis in dermal microbiomes within the requiem shark family (Carcharhinidae).” Access Microbiology 8(3), 001140 (10 pages), DOI 10.1099/acmi.0.001140.v3; institutional publication date 19 March 2026. A separate early-online date is unverified. Wenzel is second of two and corresponding author; detailed CRediT was not read. Reanalysis across six studies, eight shark species and an outgroup found no overall microbiome–host-tree congruence but limited subset-specific signals, supporting caution about study variation and analysis choice. It is adjacent ecological-genomics evidence, not a plasmid result. Recent ecological-genomics contribution.
• Natalia Timanikova; Kyle Fletcher; Jon-Wong Han; Pieter van West; Steve Woodward; Gwang-Hoon Kim; Frithjof C. Küpper; Marius Wenzel. “Macroalgal eukaryotic microbiome composition indicates novel phylogenetic diversity and broad host spectrum of oomycete pathogens.” Environmental Microbiology 26(6), e16656, DOI 10.1111/1462-2920.16656; first online 31 May 2024, issue June 2024 (day unverified). Wenzel is eighth of eight and co-corresponding with Küpper; Timanikova, Fletcher, Küpper and Wenzel are identified as equal contributors. His listed roles include supervision, analysis, data curation, methodology, validation and writing. The historical scientific assessment described broad geographical structure and weaker host-phylogenetic associations varying among community components. This comparative-ecology work informs such interpretation, not a plasmid mechanism or a Vogwill-authored result. The earlier interpretation noted reference/marker limitations and that association does not prove infection; it remains a bounded interpretation because the full paper is not archived here. Publisher record and selected sections.

This is one directly relevant preprint and two adjacent peer-reviewed outputs. Three recent lead-supervisor plasmid journal papers were not verified, and are not inferred from general departmental activity.

Computing support

The shark paper acknowledges the university's Maxwell HPC. Its facility record describes over 1,200 CPU cores and analytical software, with internal/external access. This establishes an institutional resource and evidence of related use, not a reserved allocation, current queue performance or guaranteed storage for this student. Confirm compute access, storage, software support and reproducibility practices. Maxwell facility.

Funding, Application and Living Cost

Coverage and international conditions

The project notice describes a four-year EASTBIO BBSRC competition open worldwide, with a 30% annual international cap on the DTP intake. EASTBIO’s official FAQ states that successful international awardees receive an international-fee top-up waiver, separately from UKRI’s Home-level fee contribution. This policy does not exclude a nationality; individual full-fee coverage and award conditions still require written confirmation. The cap is a cohort quota, not an individual success probability.

The project's 2027/28 tax-free stipend estimate is £22,437 per year. UKRI guidance publishes £21,805 stipend / £5,238 fee contribution for 2026/27; it does not yet confirm the advertised 2027/28 estimate. Separately, the notes provide a research/training grant of £5,000 annually in years 1–3, £1,500 in year 4, plus £230 per year for travel/conferences. These are restricted budgets, not extra disposable living income. Visa costs and associated healthcare surcharges are excluded. Award duration, payment terms and any writing-up/extension support should be obtained in the offer. EASTBIO international fee policy, UKRI confirmed rates.

Living-cost references and separate upfront costs

University guidance recommends £1,171/month for accommodation and other living costs; a secondary city guide updated 16 June 2026 suggests around £1,200/month. These are dated guidance figures, not measured personal spending or 2027 housing quotes. A real budget must separately account for accommodation contract length, remaining weeks, visa/IHS, flights, relocation, deposits, research travel and inflation. The university page quotes £776 IHS per year of study, requiring recheck against the actual visa period and application date. Actual entry-year cash needs remain dependent on the confirmed award and current housing and immigration charges. University budget, Secondary city check.

The government page lists £1,171 per month for up to nine months outside London as a visa financial requirement. That is different from a 12-month PhD budget; the evidence required depends on sponsorship and personal circumstances. Recheck the rules at the actual 2027 visa application. Do not rely on part-time earnings to fund the PhD. Current government requirement.

Applicant Fit and Preparation

Required conditions versus preferred preparation

The project asks for a relevant UK 2:1 honours degree or equivalent. It may consider a 2:2 with a completed or expected Master's Distinction or Commendation. EASTBIO does not generally require a Master's for applicants meeting the undergraduate standard. The project's ideal background is biological sciences or a related subject, especially bioinformatics, evolutionary biology or microbiology, with strong interest in prokaryotic genomics and evolutionary theory.

Previous computational biology or Linux, Python, R or Bash experience is desirable, not essential. Analyst-suggested preparation is a clear example of careful data analysis, reproducible code and interpretation of phylogenetic dependence; this is not a new formal entry requirement. The opportunity is less aligned with expectations of mainly wet-laboratory engineering or avoiding statistical computing.

School of Biological Sciences uses Postgraduate Standard English: IELTS Academic/UKVI Academic 6.5 overall, writing 6.0, listening/reading/speaking 5.5. Certification normally must fall within two years before starting. IELTS Online, Indicator and General Training are not accepted; valid One Skill Retake is accepted. A medium-of-instruction exemption depends on the approved-institution route and official evidence, not simply self-reporting English study. EASTBIO permits application before a language test, but proof may be required before a formal offer. Individual Chinese qualification equivalence was not established as a numerical percentage threshold. School English policy. School policy confirms the school/test mapping, scores, two-year-before-start validity and exclusions. The accepted-test list also includes TOEFL iBT/Home Edition, LanguageCert Academic/SELT, Cambridge, Oxford ELLT, PTE Academic, Duolingo and Skills for English SELT; their individual score tables were not opened, so IELTS scores must not be transferred to them. The EASTBIO application-stage English-test allowance is separate from the University’s entry requirements; confirm the applicant’s individual route.

Career meaning

EMBL-EBI describes bioinformatics as combining biological domain knowledge with programming, statistics, data management, analysis and collaboration. The official Skills England occupational standard similarly identifies computational analysis across life-science settings, including pharmaceutical research. These support transferability to bioinformatics, ecological genomics and research software, rather than a guaranteed job, salary or automatic clinical qualification. The occupational standard is under revision; its apprenticeship-funding rules are not eligibility rules for this PhD. No verified project-specific graduate outcomes were found. EMBL-EBI role, Occupational standard.

Next Actions and Questions to Verify

Before applying

1. Contact the lead supervisor through the official staff directory, discuss the exact title and ask whether it remains available for an international candidate and a supervisor nomination. Wenzel's published contact is marius.wenzel@abdn.ac.uk. Submission queries use smmsn-pgrenquiries@abdn.ac.uk, while general SBS degree queries can use sbspgadmin@abdn.ac.uk. Select only one EASTBIO project across all hosts.
2. Use the official 2027 EASTBIO application and reference forms. Submit one complete email to smmsn-pgrenquiries@abdn.ac.uk by 16 November 2026, 23:59 GMT, subject “EASTBIO Application – [Your Name]”. Include academic certificates/transcripts and two references; one may be non-academic. Referees may send the official form separately to the same mailbox, subject “EASTBIO Reference – [Your Name]”, by the same deadline. Project supervisors cannot act as these referees.
3. Complete the anonymous EDI survey and copy its response ID to the application form. Provide official English translations alongside non-English academic documents. No research proposal is required; the Aberdeen instructions exclude unnecessary extras such as school certificates, conference papers and dissertations. The required-document list is restrictive and does not explicitly discuss a CV. Ask the host before adding any unlisted material. The host says incomplete or unnecessarily supplemented applications will not be considered and it will not chase missing references. Generic FAQ flexibility does not provide an automatic extension to this strict host deadline; all candidates should receive an outcome.

The official 2027 EASTBIO schedule lists supervisor nominations by 18 January 2027, shortlisting by 15 February, interview invitations on 22 February, interviews in the week beginning 8 March, and decisions in the week beginning 22 March. These are programme milestones and do not extend the 16 November application deadline. 2027 nomination and selection timeline.

At interview and before accepting

Ask how ecological metadata, taxonomic sampling and phylogenetic dependence will be handled; which datasets and existing code are available; how the two supervisors divide statistical, biological and daily coding support; and what Maxwell/storage allocation and PIPS planning support are realistic. Before acceptance, obtain written international tuition waiver, stipend and four-year duration, restricted-budget access, writing-up/extension terms, visa-cost responsibility and data/code obligations. The main decision is the quality of the computational training and supervision combined with a confirmed award, rather than the assumption that every advertised project is independently funded.

Evidence and Sources

The project notice lists worldwide competition, the 16 November 2026 23:59 GMT deadline and the requirement that both references arrive by that time; current acceptance status remains unconfirmed. EASTBIO’s official FAQ states that successful international awardees receive the fee top-up waiver. Personal full-fee coverage, the available slot and supervisor nomination still require confirmation. The paper-specific evidence and archive limits above remain in force; they do not establish that every method, dataset or result was independently verified. Official application guidance, EASTBIO international fee FAQ, University project directory.

Institution, programme and training

• Aberdeen Biological and Environmental Sciences PhD
• University PhD directory
• REF 2021 Biological Sciences
• EASTBIO training overview
• PIPS internship requirements

Supervisors, recent contributions and resources

• Tom Vogwill official profile
• Marius Wenzel official profile
• Vogwill 2024 plasmid preprint
• Lynn and Wenzel 2026 shark microbiome paper
• Timanikova and colleagues 2024 macroalgal paper
• Maxwell HPC facility
• 2025 soil-plasmid field resource

Funding, admission, costs and careers

• EASTBIO 2027 application instructions
• EASTBIO international fee and eligibility FAQ
• 2027 recruitment and nomination timeline
• UKRI confirmed stipend rates
• Aberdeen living-cost guidance
• Whatuni city budget, June 2026
• Student visa financial requirement
• Aberdeen postgraduate English requirements
• EMBL-EBI bioinformatician role
• Skills England occupational standard