Dynamics of mean gain and variance analysis
Lead Research Organisation:
Roslin Institute
Department Name: UNLISTED
Abstract
Abstracts are not currently available in GtR for all funded research. This is normally because the abstract was not required at the time of proposal submission, but may be because it included sensitive information such as personal details.
Technical Summary
The proposed research in quantitative genetics is concerned with genetic change (?G) and associated risks, such as introducing genetic diseases, related to the rate of inbreeding (?F). The approach taken will be to exploit the concept of a long-term genetic contribution of an ancestor that has been largely developed in our laboratory. It has provided a unifying concept and provided solutions to many long-standing genetic problems. The issues addressed will be: near-random mating where the benefits of mating will be combined into two weighted components corresponding to prospective and retrospective actions; improved operational tools (including markers) that exploit the results from the near random mating; linked gene flow to underpin improved linkage disequilibrium methods; and improved predictions for non-random mating and exponential contribution models.
Planned Impact
unavailable
People |
ORCID iD |
| John Woolliams (Principal Investigator) |
Publications
Woolliams J
(2010)
Endogenous pulsing and stimulated release of growth hormone in dairy calves of high and low genetic merit
in Animal Science
Woolliams J
(2010)
The value of indicator traits in the genetic improvement of dairy cattle
in Animal Production
Woolliams J
(2010)
Modifications to MOET nucleus breeding schemes to improve rates of genetic progress and decrease rates of inbreeding in dairy cattle
in Animal Science
Woolliams J
(2009)
Analysis of factors affecting superovulatory responses in ruminants
in The Journal of Agricultural Science
Woolliams J
(2010)
A note on the growth and food consumption of crossbred lambs of five sire breeds
in Animal Science
Woolliams J
(2010)
The effect of dietary protein on metabolite concentrations during fasting in calves differing genetically in dairy merit
in Animal Science
Woolliams J
(2010)
The effect of breed type and inbreeding on characteristics of the fleece and skin of 12-week-old lambs
in Animal Science
Woolliams J
(2010)
Genetic contributions of Finnish Ayrshire bulls over four generations
in Animal Science
Woolliams J
(2009)
The copper content of wool in relation to breed and the concentrations of copper in the liver and plasma
in The Journal of Agricultural Science
Woolliams J
(2010)
Embryo manipulation in cattle breeding and production
in Animal Production
Woolliams J
(2010)
Decision rules and variance of response in breeding schemes
in Animal Science
Woolliams J
(2010)
The value of cloning in MOET nucleus breeding schemes for dairy cattle
in Animal Production
Woolliams J
(2010)
The effect of breed of sire on the accumulation of copper in lambs, with particular reference to copper toxicity
in Animal Science
Woolliams J
(2010)
Get off my land
in New Scientist
Woolliams J
(2010)
Retention of copper in the liver of sheep genetically selected for high and low concentrations of copper in plasma
in Animal Science
Woolliams J
(2009)
The long-term accumulation and depletion of copper in the liver of different breeds of sheep fed diets of differing copper content
in The Journal of Agricultural Science
Woolliams J
(2009)
Prediction of long-term contributions and inbreeding in populations undergoing mass selection
in Genetical Research
Woolliams J
(2010)
Studies on lambs from lines genetically selected for low and high copper status 2. Incidence of hypocuprosis on improved hill pasture
in Animal Science
Woolliams J
(2010)
The effects of breed, crossbreeding and other factors on variation in fleece and skin traits
in Animal Science
Woolliams C
(2010)
Studies on lambs from lines genetically selected for low and high copper status 1. Differences in mortality
in Animal Science
Wiener G
(2010)
Effects of rapid inbreeding and of crossing inbred lines on the growth of linear body dimensions of sheep
in Animal Science
Wiener G
(2009)
Breed differences in copper metabolism in sheep
in The Journal of Agricultural Science
Wiener G
(2010)
Genetic selection to produce lines of sheep differing in plasma copper concentrations
in Animal Science
| Description | The work done on this grant has led to the development of the upper bound for achievable genetic gain for a given rate of inbreeding. This represents the highest efficiency for converting genetic variance into changes in the mean of the trait, for example during selection. It is generic for all diploid species which includes all livestock. At this optimum the most efficient selection schemes will have maximal avoidance of relatives during mating. |
| Exploitation Route | They will be increasingly implemented by breeding programmes. |
| Sectors | Agriculture Food and Drink |
| Description | These project underpins all effective control of inbreeding in breeding schemes in all managed populations from all plants to all animals. |
| First Year Of Impact | 2009 |
| Sector | Agriculture, Food and Drink,Environment |
| Impact Types | Societal Economic |
| Description | Chair of FAO Working Group on "Secondary Guidelines on Management of Small Populations at Risk" |
| Geographic Reach | Multiple continents/international |
| Policy Influence Type | Membership of a guideline committee |
| Impact | Preparation for UN Global Plan of Action for Animal Genetic Resources and Interlaken Declaration in 2007 |
| URL | http://www.fao.org/docrep/010/a1404e/a1404e00.htm |
| Description | Membership of Defra National Consultative Committee on Farm Animal Genetic Resources, 2001 to 2002 |
| Geographic Reach | National |
| Policy Influence Type | Membership of a guideline committee |
| Impact | UK Country Report on Farm Animal Genetic Resources 2002. This was the first time this policy area was addressed and formed an international report to FAO. |
| URL | https://www.gov.uk/government/publications/uk-country-report-on-farm-animal-genetic-resources-2002 |
| Description | Membership of EAAP Working Group on Animal Genetic Resources |
| Geographic Reach | Europe |
| Policy Influence Type | Participation in a guidance/advisory committee |
| Impact | Informing EU policy on regulations and incentives for managing farm animal genetic resources. |
| Description | Membership of FAO Drafting Group for 3rd Intergovernmental Technical Working Group, 2003 |
| Geographic Reach | Multiple continents/international |
| Policy Influence Type | Membership of a guideline committee |
| Impact | Drafting resolutions for UN inter-governemental meeting on agricultural policies, ultimately leading to UN's Global Plan of Action for Farm Animal Genetic Resources and the Interlaken Agreement in 2007. |
| URL | http://www.fao.org/docrep/010/a1404e/a1404e00.htm |
| Description | Membership of FAO Working Group on Ex Situ Conservation of Livestock |
| Geographic Reach | Multiple continents/international |
| Policy Influence Type | Membership of a guideline committee |
| Impact | Preparation for UN Global Plan of Action for Animal Genetic Resources and the Interlaken Declaration in 2007. |
| URL | http://www.fao.org/docrep/010/a1404e/a1404e00.htm |
| Description | Membership of FAO Working Group on In Situ Conservation of Livestock |
| Geographic Reach | Multiple continents/international |
| Policy Influence Type | Membership of a guideline committee |
| Impact | Preparation for UN Global Plan of Action for Animal Genetic Resources and the Interlaken Declaration in 2007. |
| URL | http://www.fao.org/docrep/010/a1404e/a1404e00.htm |
| Description | Membership of FAO/ISZ Working Group on Implications of Developments in Biotechnology for the Conservation of Animal Genetic Resources at Risk: Reversible DNA Quiescence and Cloning. |
| Geographic Reach | Multiple continents/international |
| Policy Influence Type | Membership of a guideline committee |
| Impact | Informed UN of scientific background to the existing cloning technology, separating fact from fiction. |
| Description | INIA |
| Organisation | National Institute for Agricultural and Food Research and Technology |
| Country | Spain |
| Sector | Public |
| PI Contribution | Training, design and interpretation of studies, writing papers for journals |
| Collaborator Contribution | Personnel, funding for personnel, scientific discussion, writing papers. |
| Impact | Scientific papers. New PhDs and trained post-docs in Spain. |
| Start Year | 2008 |
| Description | Norwegian University of Life Sciences (NMBU), Aas, Norway |
| Organisation | Norwegian University of Life Sciences (NMBU) |
| Country | Norway |
| Sector | Academic/University |
| PI Contribution | Supervised and lectured to postgraduate students. Provided intellectual input into science proposals, ongoing projects and outputs, including research papers. |
| Collaborator Contribution | Facilities, students, intellectual stimulation, new project ideas, data, and other academic outputs such as scientific papers. |
| Impact | Joint scientific papers. Joint scientific projects (UoE/NMBU). |
| Description | University of Leon |
| Organisation | University of Leon |
| Country | Spain |
| Sector | Academic/University |
| PI Contribution | Training, design and interpretation of studies. |
| Collaborator Contribution | Personel. Funding for personnel. |
| Impact | Training, papers, new PhDs. |
| Start Year | 2008 |
| Description | University of Osijek |
| Organisation | University of Osijek |
| Country | Croatia |
| Sector | Academic/University |
| PI Contribution | Training of post-graduate student for a PhD. provison of data. |
| Collaborator Contribution | Personnel and funding required. |
| Impact | Evaluation models for boar taint to be used in selection. Training in breeding for a Croatian PhD. |
| Start Year | 2010 |