ArticleAnnals of botany2022
Evolutionary processes in an undescribed eucalypt: implications for the translocation of a critically endangered species.
Article in Annals of botany, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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6 citing papers in PubMed.
- A genetic evaluation of conservation units and four decades of translocation history for Banksia cuneata, an iconic threatened species in a biodiversity hotspot.Annals of botany · 2026Article
- Integrating Genomic and Climate Data to Design Representative Seed Production Areas: A Pragmatic Workflow for Climate-Adjusted Provenancing.Ecology and evolution · 2026Article
- Evaluating Kinship Estimation Methods for Reduced-Representation SNP Data in Non-model Species.Molecular ecology resources · 2025Article
- Pathways to Recovery: Genomics and Resistance Assays for Tree Species Devastated by the Myrtle Rust Pathogen.Molecular ecology · 2025Article
- Article
- Orogeny and High Pollen Flow as Driving Forces for High Genetic Diversity of EndangeredInternational journal of molecular sciences · 2025Article
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6 authors.
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Abstract
BACKGROUND AND
aimsKnowledge of the evolutionary processes responsible for the distribution of threatened and highly localized species is important for their conservation. Population genomics can provide insights into evolutionary processes to inform management practices, including the translocation of threatened plant species. In this study, we focus on a critically endangered eucalypt, Eucalyptus sp. Cattai, which is restricted to a 40-km2 area of Sydney, Australia, and is threatened by increased urbanization. Eucalyptus sp. Cattai has yet to be formally described in part due to its suspected hybrid origin. Here, we examined evolutionary processes and species boundaries in E. sp. Cattai to determine whether translocation was warranted.
methodsWe used genome-wide scans to investigate the evolutionary relationships of E. sp. Cattai with related species, and to assess levels of genetic health and admixture. Morphological trait and genomic data were obtained from seedlings of E. sp. Cattai propagated in a common garden to assess their genetic provenance and hybrid status. KEY
resultsAll analyses revealed that E. sp. Cattai was strongly supported as a distinct species. Genetic diversity varied across populations, and clonality was unexpectedly high. Interspecific hybridization was detected, and was more prevalent in seedlings compared to in situ adult plants, indicating that post-zygotic barriers may restrict the establishment of hybrids.
conclusionsMultiple evolutionary processes (e.g. hybridization and clonality) can operate within one rare and restricted species. Insights regarding evolutionary processes from our study were used to assist with the translocation of genetically 'pure' and healthy ex situ seedlings to nearby suitable habitat. Our findings demonstrate that it is vital to provide an understanding of evolutionary relationships and processes with an examination of population genomics in the design and implementation of an effective translocation strategy.
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