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Methods for quantitative genetic analyses in autotetraploids

  • Full or part time
  • Application Deadline
    Applications accepted all year round
  • Competition Funded PhD Project (European/UK Students Only)
    Competition Funded PhD Project (European/UK Students Only)

Project Description

Methods for quantitative genetic analysis have been well established in almost all important diploid plants and animal including humans, and have served as essential tools for dissecting the genetic architectures underlying agronomically, evolutionarily and medically interesting quantitative and complex traits. In sharp contrast, the corresponding studies in polyploid, particularly autopolyploid, species lags far behind this level of advancement, largely because of complexity in segregation and recombination of genes under polysomic inheritance, leaving quantitative genetic analysis in polyploid species a historical challenge since the era of pioneering quantitative geneticists such as RA Fisher, K Mather, JBS Haldane, etc.

This project will characterize key features of segregation and recombination of genes in both natural and designed populations of autotetraploid species, the most prominent type of autopolyploid. Autotetraploids have great agronomic and economic value, and include cultivated potato (the world’s third most important food crop), alfalfa, domestic trout and salmonidae. There is a wide spectrum of possible quantitative genetic analysis, and we will open the following diverse areas for the PhD project candidate:

(1) Development of genetic models and methods for modelling and estimating quantitative genetic effects in both natural and crossing populations of autotetraploid species.
(2) Development of methods for mapping quantitative trait loci (QTLs) in segregating populations of autotetraploid species.
(3) Development of methods for analysis of population genetic data in autotetraploids.
(4) Development of methods for linkage disequilibrium based mapping of QTLs (genome-wide association analysis, GWAS) in autotetraploids.
(5) Modelling and analyzing various quantitative phenotypes, genomics/epigenetic datasets collected from potato projects of our own research and our collaborators in United Kingdom, China and USA.
(6) Conducting a wide range of computer simulation studies for exploration of the statistical properties and reliability of methods to be developed.
(7) Development of user-friendly computational tools for quantitative genetic analyses developed and to be developed from the PhD project.

Applications are encouraged from graduates with backgrounds in any of the following disciplines: biology (particularly genetics), statistics, mathematics and computer science. The ideal candidate will have a passion for genetics and an aptitude for statistics/mathematics, modelling and large-scale genomics data analysis.

Funding Notes

UK/EU applicants may apply for MIBTP studentship via View Website and applicants from overseas are also welcome to apply for the PhD project on your own funding.


(1) Chen J, FJ Zhang, L Wang, LJ Leach and Zewei Luo* (2018) Orthogonal contrast based models for quantitative genetic analysis in autotetraploid species. New Phytologist. 220(1):332-346.
(2) Leach JL, L Wang, MJ Kearsey and ZW Luo* (2010) Multilocus tetrasomic linkage analysis using Hidden Markov chain model Proc. Natl. Acad. Sci. USA. 107: 4270-4274.

How good is research at University of Birmingham in Biological Sciences?

FTE Category A staff submitted: 42.80

Research output data provided by the Research Excellence Framework (REF)

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