Fast diffusion of domesticated maize to temperate zones

dc.creatorXiaolong Li
dc.creatorYinqiao Jian
dc.creatorChuanxiao Xie
dc.creatorJun Wu
dc.creatorYunbi Xu
dc.creatorCheng Zou
dc.date2018-03-26T15:28:19Z
dc.date2018-03-26T15:28:19Z
dc.date2017
dc.date.accessioned2023-07-17T20:02:20Z
dc.date.available2023-07-17T20:02:20Z
dc.identifier2045-2322
dc.identifierhttps://hdl.handle.net/10883/19347
dc.identifier10.1038/s41598-017-02125-0
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7511240
dc.descriptionAdaptation to a temperate climate was a prerequisite for the spread of maize across a broad geographical range. To explicitly explore the demographic process underlying maize adaptation, we used a diffusion-based method to model the differentiation between temperate and tropical populations using the Non-Stiff Stalk group as a proxy for temperate maize. Based on multiple sequential Markovian coalescent approaches, we estimate that tropical and temperate maize diverged approximately 3‚000 to 5‚000 years ago and the population size shrank after the split. Using composite likelihood approaches, we identified a distinct tropical-temperate divergence event initiated 4‚958 years ago (95% confidence interval (CI): 4‚877–5‚039) from an ancestral population whose effective size was 24,162 (95% CI: 23,914–24,409). We found that continuous gene flow between tropical and temperate maize accompanied the differentiation of temperate maize. Long identical-by-descent tracts shared by tropical and temperate inbred lines have been identified, which might be the result of gene flow between tropical and temperate maize or artificial selection during domestication and crop improvement. Understanding the demographic history of maize diffusion not only provides evidence for population dynamics of maize, but will also assist the identification of regions under selection and the genetic basis of complex traits of agronomic importance.
dc.formatPDF
dc.languageEnglish
dc.publisherNature Publishing Group
dc.relationhttps://static-content.springer.com/esm/art%3A10.1038%2Fs41598-017-02125-0/MediaObjects/41598_2017_2125_MOESM2_ESM.xls
dc.relationhttps://static-content.springer.com/esm/art%3A10.1038%2Fs41598-017-02125-0/MediaObjects/41598_2017_2125_MOESM3_ESM.doc
dc.relationhttps://static-content.springer.com/esm/art%3A10.1038%2Fs41598-017-02125-0/MediaObjects/41598_2017_2125_MOESM4_ESM.xlsx
dc.relationhttps://static-content.springer.com/esm/art%3A10.1038%2Fs41598-017-02125-0/MediaObjects/41598_2017_2125_MOESM5_ESM.xls
dc.relationhttps://static-content.springer.com/esm/art%3A10.1038%2Fs41598-017-02125-0/MediaObjects/41598_2017_2125_MOESM6_ESM.doc
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dc.rightsOpen Access
dc.sourceart. 2077
dc.source7
dc.sourceScientific Reports
dc.subjectAGRICULTURAL SCIENCES AND BIOTECHNOLOGY
dc.subjectMAIZE
dc.subjectADAPTABILITY
dc.subjectGENETIC STRUCTURES
dc.titleFast diffusion of domesticated maize to temperate zones
dc.typeArticle
dc.coverageLondon


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