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Plant Species Extinction and Opportunities for De-extinction
Douglas E Soltis1,2,3,4, Shengchen Shan1, Gregory W Stull5
1Florida Museum of Natural History, University of Florida, Gainesville, FL 32611, USA.
De-extinction, the revival of extinct species, is increasingly feasible in plants due to advances in genomics and gene editing. This approach offers hope for restoring plant biodiversity lost to human activities.
Area of Science:
- Botany
- Conservation Biology
- Genetics
Background:
- Plants face significant extinction risks from habitat loss, climate change, and overharvesting, mirroring threats to animals.
- Human-altered landscapes impede plant adaptation and distribution shifts in response to climate change.
- De-extinction, while discussed for animals, has received limited attention for plants despite its potential.
Purpose of the Study:
- To explore the feasibility and implications of de-extinction for plant species.
- To highlight the role of genomic resources and gene-editing technologies in plant de-extinction.
- To consider the ethical dimensions of reviving plant species driven to extinction by human actions.
Main Methods:
- Reviewing current genomic resources and gene-editing tools (e.g., CRISPR) applicable to plant de-extinction.
- Identifying herbarium collections as a source of ancient plant DNA.
- Analyzing the potential for regenerating extinct plant species using advanced biotechnologies.
Main Results:
- De-extinction is technically achievable for plants, especially those with close living relatives and available genomic data.
- Advancements in CRISPR-Cas9 gene editing and plant regeneration techniques enhance de-extinction prospects.
- Herbarium specimens provide a viable source for DNA extraction from recently extinct plants.
Conclusions:
- Plant de-extinction is a promising conservation tool, particularly for species lost in recent history due to human impact.
- Technological progress is rapidly expanding the possibilities for reviving extinct plant species.
- Ethical considerations surrounding human-caused extinctions and de-extinction require careful deliberation.
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