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Can improved genetic understanding of grain weight help feed the world? (UAUYJ20DTP)

  • Full or part time
  • Application Deadline
    Monday, November 25, 2019
  • Competition Funded PhD Project (European/UK Students Only)
    Competition Funded PhD Project (European/UK Students Only)

Project Description

Wheat provides 20% of the calories and protein consumed by humans. The world population will reach 9 billion by 2050, which requires food production to more than double. Increases in wheat yield are not meeting this demand though, partly because yield is a complex trait. The study of individual yield components, such as grain weight, is a promising route to solve this issue. We have recently cloned a novel allele of a transcription factor (P1) that increases thousand grain weight by 6.1%. We hypothesise that understanding the mechanisms behind this increase will allow us to further modify it and identify the best strategies to deploy it into commercial wheat varieties.

The aim of this PhD project will be to investigate the mechanism underpinning this increase in grain weight by elucidating the P1 regulatory network in polyploid wheat. To achieve this, we will study the changes in gene expression resulting from this novel allele of P1 to identify its downstream targets. This will include generating co-expression networks and testing candidate genes using available mutants. Furthermore, we have observed similar phenotypes between plants with the novel P1 allele and transgenic plants with high levels of microRNA172 (miR172). We want to investigate whether P1 and miR172 are part of the same genetic pathway or whether they act on shared targets in an independent manner. We will use a series of unique genetic lines to address this hypothesis through in-depth phenotyping, microscopy and expression analyses.

This project provides complementary approaches to elucidating the P1 regulatory network in wheat and allows plenty of room for the student to take ownership of the project and expand into their areas of interest and according to the results. The student will receive mentoring and outstanding training in modern crop genetics, genomics, data analysis and bioinformatics.

This project has been shortlisted for funding by the Norwich Biosciences Doctoral Training Partnership (NRPDTP). Shortlisted applicants will be interviewed as part of the studentship competition. Candidates will be interviewed on either the 7th, 8th or 9th January 2020.

The NRP DTP offers postgraduates the opportunity to undertake a 4-year research project whilst enhancing professional development and research skills through a comprehensive training programme. You will join a vibrant community of world-leading researchers. All NRPDTP students undertake a three-month professional internship (PIPS) during their study. The internship offers exciting and invaluable work experience designed to enhance professional development. Full support and advice will be provided by our Professional Internship team. Students with, or expecting to attain, at least an upper second-class honours degree, or equivalent, are invited to apply.

For further information and to apply, please visit our website:

Funding Notes

For funding eligibility guidance, please visit our website: View Website. Full Studentships cover a stipend (2019/0 rate: £15,009pa), research costs and tuition fees at UK/EU rate and are available to UK and EU students who meet the UK residency requirements.

Students from EU countries who do not meet the UK residency requirements may be eligible for a fees-only award. Students in receipt of a fees-only award will be eligible for a maintenance stipend awarded by the NRPDTP Bioscience Doctoral Scholarships. To be eligible students must meet the EU residency requirements.

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