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|a 10.1093/jxb/erae221
|2 doi
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|a eng
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|a Li, Xiang
|e verfasserin
|4 aut
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|a Comparative histology of abscission zones reveals the extent of convergence and divergence in seed shattering in weedy and cultivated rice
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|c 2024
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|a Text
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|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 28.08.2024
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|a Date Revised 28.08.2024
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|a published: Print
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|a Citation Status MEDLINE
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|a © The Author(s) 2024. Published by Oxford University Press on behalf of the Society for Experimental Biology. All rights reserved. For commercial re-use, please contact reprintsoup.com for reprints and translation rights for reprints. All other permissions can be obtained through our RightsLink service via the Permissions link on the article page on our site—for further information please contact journals.permissions@oup.com.
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|a The modification of seed shattering has been a recurring theme in rice evolution. The wild ancestor of cultivated rice disperses its seeds, but reduced shattering was selected during multiple domestication events to facilitate harvesting. Conversely, selection for increased shattering occurred during the evolution of weedy rice, a weed invading cultivated rice fields that has originated multiple times from domesticated ancestors. Shattering requires formation of a tissue known as the abscission zone (AZ), but how the AZ has been modified throughout rice evolution is unclear. We quantitatively characterized the AZ characteristics of relative length, discontinuity, and intensity in 86 cultivated and weedy rice accessions. We reconstructed AZ evolutionary trajectories and determined the degree of convergence among different cultivated varieties and among independent weedy rice populations. AZ relative length emerged as the best feature to distinguish high and low shattering rice. Cultivated varieties differed in average AZ morphology, revealing lack of convergence in how shattering reduction was achieved during domestication. In contrast, weedy rice populations typically converged on complete AZs, irrespective of origin. By examining AZ population-level morphology, our study reveals its evolutionary plasticity, and suggests that the genetic potential to modify the ecologically and agronomically important trait of shattering is plentiful in rice lineages
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|a Journal Article
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|a Abscission zone
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|a convergent evolution
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|a de-domestication
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|a domestication
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|a parallel evolution
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|a seed shattering
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|a weedy rice
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|a Lowey, Daniel
|e verfasserin
|4 aut
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|a Lessard, Jessica
|e verfasserin
|4 aut
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| 700 |
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|a Caicedo, Ana L
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 75(2024), 16 vom: 28. Aug., Seite 4837-4850
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnns
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|g volume:75
|g year:2024
|g number:16
|g day:28
|g month:08
|g pages:4837-4850
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|u http://dx.doi.org/10.1093/jxb/erae221
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