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Students hear from textbook writer about conservation genetics

02 August 2022 | Story Leonie Bolleurs | Photo Leonie Bolleurs

Genetics lecture — Alistair Naidoo, second-year master’s student in Conservation Genetics and full-time technician in the Department of Genetics; Prof Paul Grobler, Head of the Department of Genetics; Prof Gordon Luikart; and Hannah Janse van Vuuren, third-year master’s student in Conservation Genetics.

It is an important and exciting time to be doing research in conservation genetics. This is according to Prof Gordon Luikart, Professor of Conservation Ecology and Genetics at the Flathead Lake Bio Station at the University of Montana in the United States.

Prof Luikart, whose primary research focus is the application of genetics to the conservation of natural and managed populations, recently delivered a lecture, The Expanding Role of Genetics/omics in Wildlife Research and Conservation, on the Bloemfontein Campus of the University of the Free State (UFS). The lecture, hosted by the Department of Genetics, was attended by a group of students and lecturers in conservation and a number of related fields.

He is one of the leading scientists in the field of conservation genetics, including integration of genomics in conservation projects. He is also co-author of the textbook Conservation and the Genomics of populations – the current prescribed textbook for GENE3744.

Species threatened with extinction

In 2008, the International Union for Conservation of Nature (IUCN) stated that approximately 10-20% of all vertebrate and plant species are threatened with extinction over the next few decades. In 1984, American biologist Edward O Wilson also said that it will take millions of years to correct the ongoing loss of genetics and species diversity caused by the destruction of natural habitats. “This is the folly our descendants are least likely to forgive us.”

Prof Luikart is of the opinion that genetics has enormous potential to help manage wildlife and prevent extirpation. “My research works to realise this potential and help wildlife managers conserve populations and ecosystems,” he says.

Conservation managers and biologists have understood the risks of inbreeding for more than 100 years. In his lecture, one of the aspects of genetic conservation he focused on, was the negative effects of inbreeding and how this can be reversed using genetic rescue.

With the genetic rescue study, they found that the gene flow into recently isolated populations can increase individual fitness and population growth. He proposed that conservation managers should consider genetic principles and rescue as practical and important tools.

Prof Luikart also provided a list of information that can be retrieved from molecular genetic data to help conservation managers. This includes intel on census and effective population size, gene flow and dispersal, local adaptation and selection, forensics, genetic identification and law enforcement, and disease ecology and transmission.

Non-invasive genetic monitoring

In terms of detecting gene flow, he focused on a study about non-invasive genetic monitoring that was conducted in the Yellowstone Park. Prof Luikart and a group of students collected the shed hair and faeces of the grizzly bear, obtained from trees and hair traps, which were used as a source of DNA.

They established, for instance, that inbreeding depression is more common and stronger than previously thought in natural populations. Genetic monitoring, using non-invasive methods as described, has been found to be an effective tool that conservation managers should consider for detecting inbreeding and loss of genome-wide variation.

His research on the bighorn sheep, the alpine ibex, and the black bear informed most of the findings he discussed during his lecture.

News Archive

NRF commits R30-million for research at the UFS

2007-02-20

The National Research Foundation (NRF) has committed approximately R30-million for various research projects at the University of the Free State (UFS).

According to Prof Frans Swanepoel, Director of Research Development at the UFS, the NRF has also approved all eight research niche areas that were submitted to the NRF, the highest number approved at any university in the country.

Prof Swanepoel said the 24 research projects for which funding had been obtained from the NRF ranged from traditional healing and HIV/Aids/tuberculosis management, practices of the paediatric anti-retroviral programme at the UFS to nano-materials synthesis and characterisation.

He said the eight research niche areas were part of an initiative at the UFS to establish strategic clusters of academic and research excellence.

“There will be six strategic academic clusters at the UFS and the eight NRF-approved research niche areas will form part of them,” Prof Swanepoel said.

The six strategic clusters are:

1. Water management in water-scarce areas

2. New frontiers in poverty reduction and sustainable development

3. Social transformation in diverse societies

4. Ecologically sound value chains for agricultural commodities

5. Materials and nano sciences

6. Advanced bio-molecular research

Prof Swanepoel said that the UFS had also submitted five proposals in terms of an NRF initiative to establish research chairs at South African universities.

“Linked to our intention to establish six strategic academic clusters, five proposals for the South African Research Chair Initiative (SARCHi) were submitted. All five pre-proposals were accepted in the first round of screening, and successful candidates have been invited to submit full proposals by the end of February,” he said.

The proposed research chairs are:

Petro- and organometallic chemistry

Biocatalytic and biomimetic oxidation-reduction systems

Nano-solid state lighting

People’s health and well-being

Water management

Speaking at the official opening of the university earlier this month, the Rector and Vice-Chancellor of the UFS, Prof Frederick Fourie, said: “The cluster initiative represents a strategic initiative to focus our energies in a few key areas, investing in them so that the UFS can become an international leader in those fields.”

“A medium sized university such as the UFS with relatively limited human, physical and financial resources has to achieve this kind of ‘critical mass’ and synergy to establish itself in terms of its core functions of teaching/learning, research and community engagement,” said Prof Fourie.

Media release

Issued by: Lacea Loader

Media Representative

Tel: 051 401 2584

Cell: 083 645 2454

E-mail: loaderl@ufs.ac.za

20 February 2007

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