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Higher epigenetic diversity could alleviate the loss of genetic diversity

Genetic diversity is generally considered the chief determinant of evolutionary change, but epigenetic diversity is now recognized as another layer of heritable variation with potential adaptive consequences. Epigenetic diversity could sometimes (fragmented populations, stressing habitats) alleviate the loss of genetic diversity and provide an "evolutionary backup" mechanism for wild plants. This study compares genetic and epigenetic diversity in seven congeneric species pairs with restricted and widespread distributions in southeastern Spain. Results suggest that higher epigenetic diversity could alleviate the loss of genetic diversity in some populations of endemic plants, but also other plant features can be essential to understand the relationship between genetic and epigenetic diversities. informacion[at]ebd.csic.es: Medrano et al (2020) Comparative genetic and epigenetic diversity in pairs of sympatric, closely-related plants with contrasting distribution ranges in southeastern Iberian mountains. AoB PLANTS DOI 10.1093/aobpla/plaa013


https://academic.oup.com/aobpla/advance-article/doi/10.1093/aobpla/plaa013/5817813
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Content with tag genetic diversity .

Higher epigenetic diversity could alleviate the loss of genetic diversity

Genetic diversity is generally considered the chief determinant of evolutionary change, but epigenetic diversity is now recognized as another layer of heritable variation with potential adaptive...

Consequences of the defaunation of the Canarian frugivorous lizards

Defaunation of large-bodied frugivores could be causing severe losses of crucial ecosystem functions such as seed dispersal. This study tested whether human-induced defaunation of the Canarian...

Extreme genomic erosion in the highly endangered Iberian lynx

Genomic studies of endangered species provide insights into their evolution and demographic history, reveal patterns of genomic erosion that might limit their viability, and offer tools for their...

Infrapopulation size explains genetic diversity in a host-symbiont non-model system

Understanding what shapes variation in genetic diversity among species remains a major challenge in evolutionary ecology, and it has been seldom studied in parasites and other host-symbiont...

Cross-species amplification of microsatellite loci in sub-Antarctic seabirds

Microsatellite loci are ideal for testing hypotheses relating to genetic segregation at fine spatio-temporal scales. They are also conserved among closely related species, making them potentially...