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Sex, epigenetics and videotapes
(link available on the day of the broadcast)
The “Encontros Espresso” are a series of talks held at IIM-CSIC with the aim of helping us get to know each other better, learn more about the activity carried out at our centre and explore the world of marine science, encouraging scientific and technical discussion and strengthening links between groups.
These events are designed especially for our staff, but everyone is invited to join through our streaming broadcast.
This new format will begin at 10:00 in the IIM-CSIC Assembly Hall, and will include complimentary coffee (“Espresso”) to help communication flow smoothly.
On this occasion, the seminar will be delivered by Sofía Consuegra, ATRAE Distinguished Researcher in the Aquatic Biotechnology Group (ACUABIOTEC).
Sex, epigenetics and videotapes: analysis of the adaptive role of epigenetic variability using inbred fish as a model
Epigenetic variation represents a potential mechanism for generating adaptive responses in the presence of low genetic diversity, and may be an alternative source of adaptive plastic phenotypes that can explain the persistence of highly inbred populations in variable environments.
The extent to which epigenetic modifications act independently of genomic variation is key to understanding their potential role in evolution, and inbred organisms provide a unique opportunity to separate genetic and epigenetic variation. Fish of the genus Kryptolebias are ideal for these studies. Kryptolebias marmoratus and K. hermaphroditus are the only two known self-fertilising vertebrates and are naturally inbred. By analysing their genetic and epigenetic variation, behaviour, microbiome composition and response to parasite loads in the laboratory and in their natural environment, evidence was found that DNA methylation patterns depend on the dynamic interaction between genotype and environment.
However, epigenetic parental effects related to environmental conditions were also identified. If maintained across generations, they may represent an evolutionary strategy for species with low genetic diversity facing rapid environmental change.
Sofía Consuegra
Her work focuses mainly on conservation genetics, molecular ecology and resource management (fisheries and aquaculture), primarily but not exclusively in aquatic organisms.
She graduated in Biology from the University of Oviedo and worked for six years as Scientific Adviser to the Government of Cantabria before completing a PhD in Conservation Genetics at the University of Cantabria.
She carried out postdoctoral work at the Institute of Zoology in London and at the University of St Andrews before becoming a lecturer at Aberystwyth University until 2013 and then Professor of Evolutionary Ecology at Swansea University. She is currently an ATRAE distinguished researcher at IIM.