ArticlePloS one2019
Identifying genetic lineages through shape: An example in a cosmopolitan marine turtle species using geometric morphometrics.
Article in PloS one, 2019. 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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Who cites it
6 citing papers in PubMed.
- Mercury exposure and health challenges in Rapa Nui green turtles: urging conservation and long-term monitoring in the South Pacific.Conservation physiology · 2025Article
- The First Comprehensive Examination of Male Morphometrics and the Operational Sex Ratio of the Black Sea Turtle (Animals : an open access journal from MDPI · 2024Article
- Genetics, Morphometrics and Health Characterization of Green Turtle Foraging Grounds in Mainland and Insular Chile.Animals : an open access journal from MDPI · 2022Article
- Green, yellow or black? Genetic differentiation and adaptation signatures in a highly migratory marine turtle.Proceedings. Biological sciences · 2021Article
- Trans-Atlantic Distribution and Introgression as Inferred from Single Nucleotide Polymorphism: MusselsGenes · 2020Article
- Geolocator tagging links distributions in the non-breeding season to population genetic structure in a sentinel North Pacific seabird.PloS one · 2020Article
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Authors and funding
8 authors.
Funding
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Abstract
The green turtle (Chelonia mydas) is a globally distributed marine species whose evolutionary history has been molded by geological events and oceanographic and climate changes. Divergence between Atlantic and Pacific clades has been associated with the uplift of the Panama Isthmus, and inside the Pacific region, a biogeographic barrier located west of Hawaii has restricted the gene flow between Central/Eastern and Western Pacific populations. We investigated the carapace shape of C. mydas from individuals of Atlantic, Eastern Pacific, and Western Pacific genetic lineages using geometric morphometrics to evaluate congruence between external morphology and species' phylogeography. Furthermore, we assessed the variation of carapace shape according to foraging grounds. Three morphologically distinctive groups were observed which aligned with predictions based on the species' lineages, suggesting a substantial genetic influence on carapace shape. Based on the relationship between this trait and genetic lineages, we propose the existence of at least three distinct morphotypes of C. mydas. Well-defined groups in some foraging grounds (Galapagos, Costa Rica and New Zealand) may suggest that ecological or environmental conditions in these sites could also be influencing carapace shape in C. mydas. Geometric morphometrics is a suitable tool to differentiate genetic lineages in this cosmopolitan marine species. Consequently, this study opens new possibilities to explore and test ecological and evolutionary hypotheses in species with wide morphological variation and broad geographic distribution range.
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