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| DOI: | 10.1111/j.1469-8137.2012.04073.x |
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| Web URL(s): | http://onlinelibrary.wiley.com/doi/10.1111/j.1469-8137.2012.04073.x/full
Last checked: 03/23/2012
Access conditions: Item is within a limited-access website
http://onlinelibrary.wiley.com/doi/10.1111/j.1469-8137.2012.04073.x/pdf
Last checked: 03/23/2012
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | Gibert, Anaïs;
Volaire, Florence;
Barre, Philippe;
Hazard, Laurent |
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| Author Affiliation: | Gibert and Hazard: INRA-UMR, Castanet-Tolosan Cedex; Volaire: INRA-UMR, Route De Mende, Montpellier; Barre: INRA-URP3F, Lusignan, France |
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| Title: | A fungal endophyte reinforces population adaptive differentiation in its host grass species |
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| Section: | Research
Other records with the "Research" Section
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| Source: | New Phytologist. Vol. 194, No. 2, April 2012, p. 561-571. |
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| Publishing Information: | Oxford, England, United Kingdom: Blackwell Publishing, for the New Phytologist Trust |
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| # of Pages: | 11 |
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| Related Web URL: | http://onlinelibrary.wiley.com/doi/10.1111/j.1469-8137.2012.04073.x/abstract;jsessionid=0A57452AD90303AEC910B24AC265C74A.d02t04
Last checked: 03/23/2012
Notes: Abstract only |
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| Keywords: | TIC Keywords: Acremonium; Adaptation; Biomass; Drought resistance; Endophytic fungi; Genetic diversity; Lolium perenne; Mutualism; Native grasses; Simple sequence repeats; Symbiosis; Water availability; Water stress; Xeric soils
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| Abstract/Contents: | "Hereditary symbioses between fungal endophytes and grasses are relatively recent in the history of plant life. Given < 80 million yr of co-evolution, symbioses are likely to have impacted plant microevolutionary rather than macroevolutionary processes. Therefore, we investigated the microevolutionary role of the fungal endophyte Neotyphodium lolii in the adaptive differentiation of its host species Lolium perenne. Endophyte frequency in 22 natural L. perenne populations was established across a water availability gradient. Adaptive differentiation among five populations, and between symbiotic (S) and nonsymbiotic (NS) plants, was examined in a glasshouse experiment under nonlimiting and limiting water conditions. Genetic differentiation was subsequently assessed among populations, and between S and NS individuals, using 14 simple sequence repeats (SSR). Symbiosis frequencies were positively correlated to water availability. Adaptive population differentiation occurred following a trade-off between biomass production under nonlimiting water conditions and survivorship under water stress. Endophytic symbiosis increased plant survival in xeric populations, and reinforced competitiveness in mesic populations. No genetic difference was detected between S and NS plants within populations. Therefore, we conclude that the endophyte relationship is responsible for these effects. Local adaptation of the host plant, appears to be supported by the fungal endophyte." |
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| Language: | English |
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| References: | 48 |
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| See Also: | Other items relating to: Breeding for Drought |
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| Note: | Figures
Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Gibert, A., F. Volaire, P. Barre, and L. Hazard. 2012. A fungal endophyte reinforces population adaptive differentiation in its host grass species. New Phytol. 194(2):p. 561-571. |
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| DOI: 10.1111/j.1469-8137.2012.04073.x |
| Web URL(s):
http://onlinelibrary.wiley.com/doi/10.1111/j.1469-8137.2012.04073.x/full
Last checked: 03/23/2012
Access conditions: Item is within a limited-access website
http://onlinelibrary.wiley.com/doi/10.1111/j.1469-8137.2012.04073.x/pdf
Last checked: 03/23/2012
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: b2219226 |
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