PhD Studentship: Engineering Biology to Decode Gene Regulatory Networks in Lateral Root Initiation

PhD Studentship: Engineering Biology to Decode Gene Regulatory Networks in Lateral Root Initiation

Quick Decision

A cell's current RNA profile is only a snapshot. This doctorate asks whether DNA records of past expression events, combined with microscopy and single-cell RNA sequencing, can reveal how Arabidopsis cells acquire lateral-root founder identity. Its value is the close connection to the supervisor's demonstrated plant-recording tools and the opportunity to move from tool development to biological interpretation. Strong but verify fit for applicants interested in iterative plant experiments and quantitative analysis; ask how much biological novelty remains beyond the group's 2024 recorder paper and what materials/platform support already exist. Official project.

Sarah Guiziou is the supervisor, Wilfried Haerty the co-supervisor, and sarah.guiziou@earlham.ac.uk the enquiry address. The Earlham-hosted, UEA-registered project begins 1 October 2027 and is funded through the four-year BBSRC Norwich Research Park Biosciences DTP. The saved listing gives a closing date of 30 November 2026; the timetable does not give a closing hour, and current application status has not been verified. Programme interviews are scheduled for 2, 3 or 4 February 2027. Project, key dates.

Research Work and the Real Inference Problem

The student will build and optimise serine-integrase-based genetic circuits in Arabidopsis to record the order in which selected genes are expressed, then use fluorescence microscopy to analyse the resulting engineered lines at high spatial and temporal resolution. FACS will isolate precise lateral-root founder-cell subpopulations marked by the circuits for single-cell RNA sequencing to determine their cell states. These measurements connect selected expression histories with present states and the regulatory programme of lateral-root initiation. The final part of the doctorate can be shaped by the student, with scope agreed with the supervisors.

Training spans engineering biology, automation, molecular and plant biology, microscopy and single-cell data analysis. These are training opportunities, not a claim that every technique must already be mastered at application. International conferences and industry symposia are opportunities rather than guaranteed funded trips. Sustainable agriculture is the group's longer-term motivation; the project does not promise a field-ready crop or improved yield.

The interpretation is harder than reading a fluorescent colour. A recorder's permanent state reflects whether a signal crossed a switching threshold and can be inherited by descendants. It is not a continuous measurement of expression amplitude or a complete transcriptomic movie. Single-cell profiles add detailed state information but do not independently prove causal regulatory relationships. The strongest project would define what new biological question becomes answerable when these measurements are combined, while separating technical switching variation, lineage history and cell-processing effects from cell-fate differences. The papers support these interpretive questions; they do not establish that the proposed biological integration is already validated. Plant toolbox, history recorder.

University, Subject and Doctoral Training

UEA is the degree-registration institution, while Earlham Institute is the research host and NRPDTP the training/funding programme. This is not evidence of an independent Earlham degree or a joint degree. QS 2027 places UEA =381 overall; the relevant field signal is instead the direct plant-recording research plus the host's engineering, single-cell and computing resources. Programme eligibility, host postgraduate environment, QS profile.

NRPDTP training uses an initial needs analysis and a personalised development plan with the supervisory team, alongside core/cohort activities, masterclasses, summer conferences and advanced/elective training. The standard PIPS is a three-month professional internship outside the PhD's research area, with flexible timing and support to explore policy, media, education or industry. Do not substitute a CASE placement's rules or assume a first-year rotation from a different programme. Specific 2027 course choices and the project's lab/computation balance remain to be agreed. Training, PIPS.

Supervisors and Three Recent Research Contributions

Guiziou's trajectory directly fits this project: synthetic logic during her doctorate, plant engineering work at Washington from 2019–2022, and an Earlham group developing root architecture and associated microbiome approaches. Haerty's computational genomics expertise can complement the cell-state analysis. The broader group's microbiome/drought work is context, not an instruction that this student must also engineer microbial communities. Neither profile establishes meeting quality, day-to-day availability or student completion outcomes. Guiziou, group, Haerty.

Original research	Contribution and relevance	Important limit
Guiziou et al., Nature Communications 2023	Transfers integrase memory into plants and establishes reporter/lineage tools. It identifies why specificity and robustness must be characterised.	A working switch is not a full network; performance depends on biological context and thresholds.
Maranas et al., Nature Communications 2024	A four-state history recorder distinguishes ordered events in lateral roots and stomata, and reveals developmental heterogeneity. This is the closest direct foundation.	Selected event histories do not recover every expression trajectory or prove causality. The new doctorate needs a clearly stated advance beyond this demonstration.
Greco et al., Nature Communications 2026	Semi-automated long-read and computational characterisation measures internal circuit behaviour beyond simple fluorescent output.	This is metrology expertise, not proof that the proposed root/single-cell integration is already complete, or that nanopore assays are mandatory in this doctorate.

2023 toolbox, 2024 recorder, 2026 characterisation. The 2026 publisher identifies a peer-reviewed accepted early article, subject to further edits before the final Version of Record; it should not be described as an unreviewed preprint. Reading covers abstracts and relevant results/discussion where accessible, not an exhaustive method audit. Guiziou's authorship does not imply sole invention or equal responsibility for every result.

Earlham's single-cell platforms provide sorting, library and analysis expertise; the Biofoundry provides experiment-design and automation support; computing infrastructure supports reproducible analysis. These are credible complementary resources. The practical questions are which validated plant materials, platform bookings, support personnel and sequencing/imaging budget are actually committed to this student. Platform existence alone does not answer them. Single-cell infrastructure, Biofoundry, computing.

Funding and a Realistic Budget

The programme explicitly admits international applicants to fully funded awards, capped at 30% of the intake, and pays tuition for the four-year degree, a UKRI-rate stipend, and £5,000 per year RTSG. This is a competitive award, not guaranteed funding for every eligible applicant. £21,805 per year is the published 2026/27 stipend, approximately £1,817.08/month by arithmetic; the 2027/28 award must be checked. Research support money is not extra personal maintenance. Funding, eligibility, UKRI terms.

The funding guidance for October 2027 entrants offers a contribution of up to £3,500 toward the student's individual visa and immigration-health surcharge costs. Payment follows enrolment/registration and supporting evidence; dependants are excluded. This is capped reimbursement, not full coverage of every immigration, travel or relocation cost, and applicants need the cash up front. The retained funding evidence uses 2027 entry wording, while some earlier snapshots refer to 2026; the award letter should confirm the applicable terms.

UEA's 2026/27 table illustrates postgraduate 50-week accommodation at £6,550 for a room in a two-bedroom unit, £8,925 for Village en suite, £9,750 for Campus en suite and £10,475 for Barton/Hickling or Crome. Typical licences are 50 weeks and 5 days, and exact dates affect cost. These are reference-year illustrations, not 2027 room offers. Norwich Arts University's £1,000–£1,200 monthly estimate is explicitly 2024 and only a historical city comparator; UEA's living-cost comparisons are also mixed-year. Budget 52 weeks, food, transport, any unbundled utilities, deposit and temporary accommodation, in addition to up-front visa/IHS. No disposable-income or savings guarantee follows. Housing, UEA cost context, historical city comparator.

Eligibility and Applying Without a Form Error

The programme normally requires a First or Upper Second-class UK honours degree or equivalent. Lower Second-class applicants may be considered with an appropriate Master's or significant relevant research/non-academic experience; this is conditional consideration, not automatic admission. English requirements must be met before entry. Programme guidance allows the language condition to be met after application; English-medium prior study alone does not establish an exemption. No project-specific test score or country conversion was verified. Eligibility, application guidance.

Apply through UEA, to at most three projects, with a separate application for each. The NRPDTP Personal Statement Proforma and Research Statement Proforma are mandatory; missing them leads to rejection. Use the current programme downloads, not a generic free-form 500-word host statement. Required materials include degree certificates/transcripts and official English translations where needed, CV, at least two referee contacts, language documents where required, and passport/prior UK visa/settled-status evidence as applicable. At least one referee must be academic; project supervisors, friends and relatives are not accepted. The CV guidance suggests 1–2 pages. Application requirements, statement guidance, UEA portal.

The currently linked personal form allocates 100 words to motivation and 450 each to commitment examples, recent science and additional context. The research form allocates 250 words to project motivation, 250 to skills/experience and 400 to an accessible account of complementary work by a different research group, including its citation. The three Guiziou-group papers reviewed above do not by themselves meet that external-group requirement. Sensitive personal context does not require further disclosure at interview. The available project information does not specify provision for applicants from under-represented groups, how an applicant should explain an impact on study, or what support follows a disability declaration; confirm these points with NRPDTP. Personal form, research form.

The currently linked form filenames include 2026 although the live key dates describe 2027 entry. Confirm the intended version with the programme and follow current downloads; the guidance requires every question answered and truthful personal claims that can be explained at interview. This version check is an actionable uncertainty, not a reason to invent replacement forms. Shortlisting is scheduled for the week beginning 18 January 2027, interviews 2–4 February, and outcomes the week beginning 22 February. These dates may change and do not guarantee an interview. Timetable.

Career Value, Fit and Priority Questions

This project could build a useful combination of plant developmental understanding, engineering measurement, microscopy, single-cell analysis and automation literacy. Government's engineering-biology vision emphasises interdisciplinary and communication skills, while explicitly stating that its skills question did not measure current workforce availability. The same evidence recognises infrastructure, finance and academic-career constraints. It supports the relevance of the skill combination, without establishing a labour shortage, salary forecast or certainty of becoming a biotech CEO. PIPS creates exposure to other careers without promising employment. Government evidence, professional internship.

Before applying, confirm qualification/language equivalence, portal reference, current statement-template version, referee deadlines and closing hour. At interview, ask which biological questions advance beyond 2024, what validated materials and platform budget exist, how history/state interpretations will be independently checked, and how Guiziou/Haerty and daily staff share supervision. Before accepting, get full four-year international tuition and 2027 stipend terms in writing, the visa/IHS reimbursement rules, project fallback and data/publication arrangements, and the PIPS schedule/support.

Evidence and Sources

Project, supervisors and facilities

• Original jobs.ac.uk listing
• Official lateral-root DNA recording PhD
• Sarah Guiziou official profile
• Guiziou Group activities and team
• Wilfried Haerty official profile
• Earlham research e-infrastructure
• Earlham postgraduate studies
• Earlham single-cell and spatial platforms
• Earlham Biofoundry national infrastructure
• QS 2027 UEA overall ranking

Admission, funding and training

• NRPDTP application guidance
• NRPDTP academic/international eligibility
• NRPDTP 2027 recruitment timetable
• NRPDTP four-year award and visa/IHS contribution
• NRPDTP personalised training programme
• NRPDTP three-month professional internship
• NRPDTP statement-proforma guidance
• UEA research application portal
• UKRI training funding terms
• Currently linked NRPDTP personal statement form
• Currently linked NRPDTP research statement form

Recent original research

• Guiziou et al 2023 plant integrase toolbox
• Maranas et al 2024 single-cell history-dependent plant recorder
• Greco et al 2026 nanopore circuit characterisation

Budget and career evidence

• UEA accommodation comparison 2026/27
• UEA cost-of-living context
• Norwich Arts University city budget comparator
• UK National Vision for Engineering Biology