Dr James Nicholls

Dr James Nicholls, Biodiversity Genomics Scientist

Email: jnicholls@rbge.org.uk
ORCID: 0000-0002-9325-563X

My research interests and experience lie in applying molecular methods to address evolutionary, ecological and taxonomic questions. I have answered such questions using a range of plant, invertebrate and vertebrate systems, with most of my recent research focusing on interacting communities of insect and plant species, including their associated taxonomy.

My research career started in Australia, focussing on behavioural ecology questions primarily in birds, for example examining the evolution of breeding behaviours or the interaction between within-species phenotypic divergence and genetic divergence. A subsequent move to Edinburgh also involved a shift in research focus to work on insect-plant interactions using two main study systems, the community of wasps associated with galls on oak trees and the Neotropical legume genus Inga. After a stint back in Australia at the Australian National Insect Collection at CSIRO, I have since returned to the Royal Botanic Garden Edinburgh to help facilitate RBGE’s use of molecular methods such as DNA barcoding and whole-genome sequencing, for identification, phylogenetic and evolutionary studies.

A large part of my research has involved the development and application of molecular methods with a specific focus on trying to utilise more difficult-to-work-with sources of genetic information. This includes environmental DNA samples, such as DNA found in animal scats, as well as the degraded and damaged DNA that can be obtained from specimens held in biological collections. Being able to use these sources of DNA opens up a huge range of potential questions and applications that would be very hard to address otherwise, such as determining the diet of an animal or detecting the presence of rare or cryptic species. In addition, such methods massively increase the value of biological collections such as the Herbarium at RBGE, making them libraries of genetic information for a broad range of research and conservation applications.

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