Change search
ReferencesLink to record
Permanent link

Direct link
Drought Tolerance in Wild Plant Populations: The Case of Common Beans (Phaseolus vulgaris L.)
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Plant Ecology and Evolution.
Show others and affiliations
2013 (English)In: PLoS ONE, ISSN 1932-6203, Vol. 8, no 5, e62898- p.Article in journal (Refereed) Published
Abstract [en]

Reliable estimations of drought tolerance in wild plant populations have proved to be challenging and more accessible alternatives are desirable. With that in mind, an ecological diversity study was conducted based on the geographical origin of 104 wild common bean accessions to estimate drought tolerance in their natural habitats. Our wild population sample covered a range of mesic to very dry habitats from Mexico to Argentina. Two potential evapotranspiration models that considered the effects of temperature and radiation were coupled with the precipitation regimes of the last fifty years for each collection site based on geographical information system analysis. We found that wild accessions were distributed among different precipitation regimes following a latitudinal gradient and that habitat ecological diversity of the collection sites was associated with natural sub-populations. We also detected a broader geographic distribution of wild beans across ecologies compared to cultivated common beans in a reference collection of 297 cultivars. Habitat drought stress index based on the Thornthwaite potential evapotranspiration model was equivalent to the Hamon estimator. Both ecological drought stress indexes would be useful together with population structure for the genealogical analysis of gene families in common bean, for genome-wide genetic-environmental associations, and for postulating the evolutionary history and diversification processes that have occurred for the species. Finally, we propose that wild common bean should be taken into account to exploit variation for drought tolerance in cultivated common bean which is generally considered susceptible as a crop to drought stress.

Place, publisher, year, edition, pages
2013. Vol. 8, no 5, e62898- p.
National Category
Natural Sciences
URN: urn:nbn:se:uu:diva-205390DOI: 10.1371/journal.pone.0062898ISI: 000321202100046OAI: diva2:644285
Available from: 2013-08-29 Created: 2013-08-16 Last updated: 2013-08-29Bibliographically approved

Open Access in DiVA

fulltext(741 kB)280 downloads
File information
File name FULLTEXT01.pdfFile size 741 kBChecksum SHA-512
Type fulltextMimetype application/pdf

Other links

Publisher's full text

Search in DiVA

By author/editor
Cortes, Andres J.
By organisation
Plant Ecology and Evolution
In the same journal
Natural Sciences

Search outside of DiVA

GoogleGoogle Scholar
Total: 280 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 177 hits
ReferencesLink to record
Permanent link

Direct link