Galapagos tortoises: Protagonists in the spectacle of life on Earth

Frazier, J.

doi:10.1016/b978-0-12-817554-5.00012-5

Galapagos Giant Tortoises 2021

DOI: 10.1016/b978-0-12-817554-5.00012-5

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Galapagos tortoises: Protagonists in the spectacle of life on Earth

J. Frazier

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2022

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The Galapagos giant tortoise Chelonoidis phantasticus is not extinct

et al. 2022

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The status of the Fernandina Island Galapagos giant tortoise (Chelonoidis phantasticus) has been a mystery, with the species known from a single specimen collected in 1906. The discovery in 2019 of a female tortoise living on the island provided the opportunity to determine if the species lives on. By sequencing the genomes of both individuals and comparing them to all living species of Galapagos giant tortoises, here we show that the two known Fernandina tortoises are from the same lineage and distinct from all others. The whole genome phylogeny groups the Fernandina individuals within a monophyletic group containing all species with a saddleback carapace morphology and one semi-saddleback species. This grouping of the saddleback species is contrary to mitochondrial DNA phylogenies, which place the saddleback species across several clades. These results imply the continued existence of lineage long considered extinct, with a current known population size of a single individual.

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The Galapagos giant tortoise Chelonoidis phantasticus is not extinct

et al. 2022

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Galapagos tortoises: Protagonists in the spectacle of life on Earth

Cited by 1 publication

References 159 publications

The Galapagos giant tortoise Chelonoidis phantasticus is not extinct

The Galapagos giant tortoise Chelonoidis phantasticus is not extinct

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