The DOI matches its Crossref record; 32 of the 32 references it cites were found in a registry or an index.
Historical collections reveal patterns of diffusion of sweet potato in Oceania obscured by modern plant movements and recombination
Open accessAbstract
The history of sweet potato in the Pacific has long been an enigma. Archaeological, linguistic, and ethnobotanical data suggest that prehistoric human-mediated dispersal events contributed to the distribution in Oceania of this American domesticate. According to the “tripartite hypothesis,” sweet potato was introduced into Oceania from South America in pre-Columbian times and was then later newly introduced, and diffused widely across the Pacific, by Europeans via two historically documented routes from Mexico and the Caribbean. Although sweet potato is the most convincing example of putative pre-Columbian connections between human occupants of Polynesia and South America, the search for genetic evidence of pre-Columbian dispersal of sweet potato into Oceania has been inconclusive. Our study attempts to fill this gap. Using complementary sets of markers (chloroplast and nuclear microsatellites) and both modern and herbarium samples, we test the tripartite hypothesis. Our results provide strong support for prehistoric transfer(s) of sweet potato from South America (Peru-Ecuador region) into Polynesia. Our results also document a temporal shift in the pattern of distribution of genetic variation in sweet potato in Oceania. Later reintroductions, accompanied by recombination between distinct sweet potato gene pools, have reshuffled the crop’s initial genetic base, obscuring primary patterns of diffusion and, at the same time, giving rise to an impressive number of local variants. Moreover, our study shows that phenotypes, names, and neutral genes do not necessarily share completely parallel evolutionary histories. Multidisciplinary approaches, thus, appear necessary for accurate reconstruction of the intertwined histories of plants and humans.
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Cites
Inference of Population Structure Using Multilocus Genotype Data
Pritchard, J. K., Stephens, M., & Donnelly, P. (2000) · Genetics · doi:10.1093/genetics/155.2.945 · Cited by 33,908
Median-joining networks for inferring intraspecific phylogenies
Bandelt, H. J., Forster, P., & Rohl, A. (1999) · Molecular Biology and Evolution · doi:10.1093/oxfordjournals.molbev.a026036 · Cited by 11,742
APE: analyses of phylogenetics and evolution in R language
Paradis, E., Claude, J., & Strimmer, K. (2004) · Bioinformatics · doi:10.1093/bioinformatics/btg412 · Cited by 11,335
Falush, D., Stephens, M., & Pritchard, J. K. (2003) · Genetics · doi:10.1093/genetics/164.4.1567 · Cited by 7,959
Jombart, T., Devillard, S., & Balloux, F. (2010) · BMC Genetics · doi:10.1186/1471-2156-11-94 · Cited by 4,963
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Storey, A. A., Ramírez, J. M., Quiroz, D., Burley, D. V., Addison, D. J., Walter, R., Anderson, A. J., Hunt, T. L., Athens, J. S., Huynen, L., et al. (2007) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0703993104 · Cited by 645
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Perrier, X., De Langhe, E., Donohue, M., Lentfer, C., Vrydaghs, L., Bakry, F., Carreel, F., Hippolyte, I., Horry, J.-P., Jenny, C., et al. (2011) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.1102001108 · Cited by 492
Self-citationThe Peopling of the Pacific from a Bacterial Perspective
Moodley, Y., Linz, B., Yamaoka, Y., Windsor, H. M., Breurec, S., Wu, J.-Y., Maady, A., Bernhöft, S., Thiberge, J.-M., Phuanukoonnon, S., et al. (2009) · Science · doi:10.1126/science.1166083 · Cited by 350
Larson, G., Cucchi, T., Fujita, M., Matisoo-Smith, E., Robins, J., Anderson, A., Rolett, B., Spriggs, M., Dolman, G., Kim, T.-H., et al. (2007) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0607753104 · Cited by 319
An Asian origin for a 10,000-year-old domesticated plant in the Americas
Erickson, D. L., Smith, B. D., Clarke, A. C., Sandweiss, D. H., & Tuross, N. (2005) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0509279102 · Cited by 299
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Self-citationNative American gene flow into Polynesia predating Easter Island settlement
Ioannidis, A. G., Blanco-Portillo, J., Sandoval, K., Hagelberg, E., Miquel-Poblete, J. F., Moreno-Mayar, J. V., Rodríguez-Rodríguez, J. E., Quinto-Cortés, C. D., Auckland, K., Parks, T., et al. (2020) · Nature · doi:10.1038/s41586-020-2487-2 · Cited by 196
Genome-wide Ancestry Patterns in Rapanui Suggest Pre-European Admixture with Native Americans
Moreno-Mayar, J. V., Rasmussen, S., Seguin-Orlando, A., Rasmussen, M., Liang, M., Flåm, S. T., Lie, B. A., Gilfillan, G. D., Nielsen, R., Thorsby, E., et al. (2014) · Current Biology · doi:10.1016/j.cub.2014.09.057 · Cited by 74
Genetic Ancestry of Rapanui before and after European Contact
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Metadata
- Authors
- Roullier, C., Benoit, L., McKey, D. B., & Lebot, V.
- Venue
- Proceedings of the National Academy of Sciences
- Published
- 2013-01-22
- Volume
- 110
- Issue
- 6
- Pages
- 2205-2210
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- OpenAlex
- W1515678925
- Cited by
- 292
- References
- 32
- FWCI
- 13.56
- Type
- journal article
- Language
- en
- Open access
- green
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