Spatial and three-dimensional genome regulation during zygotic genome activation

Spatial and three-dimensional genome regulation during zygotic genome activation

Research Question and Applicant Fit

How are chromosome folding and spatially restricted transcription coordinated when an embryo activates its own genome? This project connects developmental 3D genomics with spatial and single-cell evidence. The biological system, sample availability and balance of methods are deliberately open, so the first practical decision is a focused question rather than a promise to use every platform.

The saved LMS 2027 Core PhD recruitment lists the project with Prof Juanma Vaquerizas and Dr Andrew Russell. It records 18 November 2026 at 09:00, January 2027 interviews and a 4 October 2027 intended start; the 2026–27 application form specifies 9am UK time. Reference arrival deadlines still need confirmation. LMS recruitment.

For successful awardees, the advertised support is four years of £26,500 annual tax-free stipend, tuition support, necessary research consumables and overseas visa costs; whether tuition support covers the overseas-fee differential is unconfirmed. All nationalities may apply, subject to Imperial academic/English and individual immigration requirements; eligibility is not an award guarantee. LMS recruitment.

Research Problem and Doctoral Work

What Is Unsolved and Why It Matters

Zygotic genome activation marks the transition from maternal to embryonic control of development. The official project frames ZGA not only as transcriptional activation, but as a coordinated shift in promoter-enhancer communication, boundary formation, insulation, 3D genome folding and spatially restricted transcriptional states official project description. The central question is how an active regulatory genome is established in space and time at the onset of embryonic transcription.

The problem is timely because Vaquerizas-lab work has shown that chromatin architecture can be reorganised before and during ZGA. The project-cited 2026 Nature Genetics paper reports that three-dimensional genome reorganisation foreshadows ZGA in Drosophila, including loops and insulation before major transcriptional activation 2026 ZGA 3D genome paper. A Vaquerizas review also frames ZGA as a phase where 3D genome organisation and transcriptional regulation become coupled ZGA 3D genome review.

Work, Methods, and Potential Outputs

The official DOCX is unusually explicit about methods. It says the project will combine low-input chromosome conformation approaches established in the Vaquerizas laboratory, including Pico-C, with spatially resolved genomics methods from the Russell laboratory, especially Slide-tags and potentially Xenium-based imaging where appropriate official project description. It may also incorporate long-read sequencing to resolve isoform usage, haplotype-resolved transcription or allele-specific regulation in spatially defined embryonic contexts official project description.

One possible PhD output is a map connecting chromatin folding, promoter-enhancer communication and spatial transcriptional states during a selected ZGA window. A methods-oriented contribution could assess low-input and spatial methods for scarce embryonic material and produce a reproducible multimodal analysis workflow. The largest execution risk is that Pico-C, spatial genomics, imaging, long-read sequencing and multimodal integration are each demanding. The first-year plan should narrow the biological system and method stack quickly.

Supervisor and Lab Assessment

Supervisor Research Directions

Prof Juanma Vaquerizas is a strong primary signal for the 3D genome and developmental-genomics side. LMS lists him as Head of Developmental Epigenomics, LMS Programme Leader since 2014 and Imperial Professor of Developmental Genomics from 2024; his group studies how transcription is regulated during development and disease and how genome activity is encoded from sequences to 3D structure Vaquerizas profile. The Developmental Epigenomics group combines experimental and computational methods to understand regulatory genome function during differentiation and development Developmental Epigenomics group.

Dr Andrew Russell supplies the spatial and single-cell technology side. LMS lists him as Head of Tissue Biology, Programme Leader Track from 2026 and Honorary Senior Lecturer at Imperial; his group develops and applies single-cell and spatial approaches to understand cell interactions and tissue patterning in situ Russell profile. The Tissue Biology group’s focus on tools, quantitative methods and perturbation of tissue circuits matches the project’s Slide-tags and imaging component Tissue Biology group.

Relevant Research Evidence

Chromatin architecture around developmental transitions

The most direct recent paper is Vaquerizas lab’s 2026 Nature Genetics article on 3D genome reorganisation before ZGA in Drosophila 2026 ZGA 3D genome paper. It is directly relevant to the hypothesis that genome architecture and activation are coupled. The temporal ordering described here is not by itself a complete causal explanation.

A second project-cited 2026 Nature Structural & Molecular Biology paper reports global genome-architecture reorganisation during the transition to gametogenesis 2026 gametogenesis architecture paper. This is not ZGA itself, but it reinforces the lab’s broader claim that major developmental transitions involve large-scale regulatory and architectural rewiring.

Spatial methods, tissue applications and the retained preprint

On the spatial-methods side, Russell co-led the 2024 Nature paper “Slide-tags enables single-nucleus barcoding for multimodal spatial genomics”, directly supporting the method named in the official project Slide-tags paper. A 2025 Nature Medicine spatial/single-cell trophoblast paper with Russell adds evidence that his research programme can apply spatial approaches to intact tissue biology rather than only method development spatial trophoblast paper. A 2026 preprint from the Vaquerizas environment applies single-nucleus multiomic and spatial approaches to gene regulation in human spermatogenesis; it is useful frontier context but should be weighted below peer-reviewed papers single-nucleus spatial atlas preprint.

Lab, Resources, and Collaboration Environment

The facilities base is well matched to the project. LMS lists bioinformatics, genomics, scientific computing and other core facilities LMS facilities. The Genomics facility lists Illumina, Nanopore, single-cell genomics, spatial genomics and synthetic genomics support LMS Genomics facility. The Bioinformatics facility supports bulk and single-cell genomics, transcriptomics, epigenetics, hands-on analysis and training LMS Bioinformatics facility. The computing facility provides HPC, GPU architecture, storage and secure data infrastructure LMS scientific computing.

The environment therefore lowers infrastructure risk, but not project-design risk. Applicants should verify whether the student will mainly sit in the Vaquerizas lab, Russell lab or a shared arrangement, and how access to spatial platforms and embryonic material will be prioritised.

School, Programme, and Field Context

LMS is a biomedical discovery institute embedded within Imperial College London’s Hammersmith Hospital Campus and near the White City Innovation District LMS about. LMS PhD students are enrolled through Imperial College London’s Faculty of Medicine and access Imperial Graduate School training and student support LMS studentships. The degree context is high signal: QS lists Imperial College London as 2nd in the QS World University Rankings 2026 QS Imperial profile, and Imperial’s own league-table page presents consistently high global ranking performance Imperial league tables.

The saved context establishes Imperial registration and Graduate School support, but not the student's full assessment timetable, training requirements or personal access arrangements. Confirm how the two groups will coordinate supervision and a feasible first-year scope.

Funding, Application, and Living Cost

The funding package is a major positive. LMS lists a four-year tax-free stipend of £26,500 per year, tuition support, necessary consumables and visa costs for overseas students; whether tuition support covers the overseas-fee differential is unconfirmed LMS recruitment. The same page states that LMS programmes are open to applicants of all nationalities and that applicants should have, or expect to obtain, a first or upper-second class degree or equivalent in a relevant scientific subject; a Master’s degree is preferred, and at least one year of equivalent research experience may be considered LMS recruitment.

The saved criteria include applicants of all nationalities, and the funding statement expressly lists overseas students. This includes Chinese applicants but does not guarantee an award. The public page gives no numeric international-place cap; ask the Postgraduate Coordinator whether an internal cap or ranking rule applies.

London living costs are the practical constraint. Imperial estimates average 2026 student living costs at £1,821-£1,893 per month and around £22,722 over 12 months, excluding tuition and study materials Imperial living costs. GOV.UK’s London student-visa maintenance figure is £1,529 per month for up to nine months, unless an exemption applies GOV.UK student visa money. The £26,500 stipend is above these stated figures, but this is not an individual 2027 disposable-income calculation. The 2026 student estimates and visa-evidence threshold have different purposes; rent deposits, commuting, IHS rules and dependants can change affordability.

Applicant Fit and Preparation

Best-fit applicants are not simply “developmental biologists”. The strongest profile combines developmental biology or molecular biology with genomics, quantitative analysis and interest in spatial methods. Evidence could include single-cell RNA-seq or ATAC-style analysis, chromatin conformation capture, imaging/spatial transcriptomics, embryology, R/Python, statistics, or multimodal data integration. The official project text says the balance between experimental and computational work will be shaped by the project direction, which makes flexibility and method learning important official project description.

Less suitable profiles include applicants who want a purely descriptive embryology project or applicants who cannot evidence any capacity for computational analysis. A computational applicant can still be credible if they show biological understanding of ZGA and developmental model systems. A wet-lab applicant can be credible if they show readiness for quantitative data integration. Preparation should include the official project DOCX, the 2026 ZGA Nature Genetics paper, Slide-tags, a basic understanding of Pico-C/3D genome contact maps, and Imperial’s English-language requirement Imperial English requirement.

Career and Transferable Skills

The field outlook is strong because developmental genomics increasingly depends on methods that preserve spatial and regulatory context. Training in chromatin conformation capture, spatial transcriptomics, single-cell/single-nucleus analysis and multimodal data integration transfers to academia, biotech, pharma, fertility/developmental research and computational biology. UK government labour-market sources point to life sciences as a growth sector and highlight AI, data, software and genomic-analysis skills as areas of demand UK Life Sciences Jobs Plan, Skills England life-sciences assessment.

These are field-level skill signals, not measured employment outcomes for this project or a clinical qualification. Choosing and interpreting an appropriate combination of data may matter more than using the largest possible method stack.

Next Actions and Questions to Verify

Before Applying

The existing brief records the form-submission address students@lms.mrc.ac.uk, two academic referees who send their references directly and the planned 4 October 2027 intake. Registering interest is not an application. Confirm the reference cutoff and personal start alongside the application-form deadline of 18 November 2026, 9am UK time.

Ask LMS whether the 2027 competition has an internal cap on international funded awards and whether full fee coverage is at the overseas fee rate for this studentship. Ask whether visa-cost coverage includes only the visa fee or broader immigration-related charges.

Ask the supervisors which system will be used first, whether the project starts in Drosophila, mouse, human-related embryonic material or a different model, and what material is already available. Ask which method is expected to anchor year one: Pico-C, Slide-tags, Xenium, long-read sequencing or computational integration.

At Interview

Clarify the day-to-day supervision split between Vaquerizas and Russell, access to spatial platforms, data-analysis expectations, and first-year milestones. Ask what would count as a successful pilot dataset and what fallback exists if embryonic material or spatial assays are delayed.

Before Accepting an Offer

Check the final award letter for stipend, duration, overseas tuition coverage, visa-cost wording and consumables. Confirm campus location, office/lab placement, expected travel between facilities and accommodation feasibility in London.

Evidence and Sources

The saved recruitment information and 2026–27 form give the deadline and intended intake stated above, but current application status and remaining places are unconfirmed; contact LMS before applying. The saved literature summaries distinguish peer-reviewed studies, the 2026 preprint and the 2022 review; the preprint remains lower-weight frontier context. Complete ordered bylines and paper-body/supplement reading histories are not established in the available reader texts.

• Official project and recruitment: LMS 4-year PhD studentships, official project description DOCX, LMS PhD training.
• Supervisors and environment: Juanma Vaquerizas profile, Developmental Epigenomics group, Vaquerizas laboratory publications, Andrew Russell profile, Tissue Biology group, LMS about, LMS facilities, Genomics facility, Bioinformatics facility, Scientific computing facility.
• University, funding and cost: Imperial Institute of Clinical Sciences study page, Imperial league tables, QS Imperial profile, Imperial living costs, GOV.UK student visa money, Imperial English-language requirement.
• Publications and field context: 2026 ZGA 3D genome paper, 2022 ZGA review, 2026 gametogenesis genome-architecture paper, 2024 Slide-tags paper, 2025 spatial trophoblast paper, 2026 single-nucleus spatial atlas preprint, UK Life Sciences Jobs Plan, Skills England life-sciences assessment.
• Current LMS 2026–27 application form: 9am UK time.