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. Author manuscript; available in PMC: 2024 Jan 1.
Published in final edited form as: Mol Ecol. 2022 Jan 17;32(2):281–298. doi: 10.1111/mec.16334

Figure 2. Historical DNA Suggests Genetic Stability in California.

Figure 2.

A) Sampling locations and ages of three historic sea otter samples from California shell middens.

B) PCAngsd principal components analysis of three historic California samples (“Anc-CA”, gold stars) and 15 modern sea otter samples based on genotype likelihoods. Each modern population (California (CA), Alaska (AK), Aleutian Islands (AL), and Kuril Islands (KUR), and the Commander Islands (COM)) was downsampled to three individuals to balance the sample size of the three historic samples.

C) PCAngsd admixture analysis, based on genotype likelihoods, including the three historic California samples (“Anc-CA”).

See also Figure S2 and Table S2.