Evolutionary Plant Breeding in Cereals—Into a New Era

Sustainability

Thomas F. Döring²  Samuel Knapp⁴  Geza Kovacs³  Kevin Murphy¹ 

[1] Department of Crop and Soil Sciences, Washington State University, 291D Johnson Hall, Pullman, WA 99164, USA; E-Mail:;The Organic Research Centre, Hamstead Marshall, Newbury, Berkshire RG20 0HR, UK; E-Mail:;Department of Genetic Resources and Organic Plant Breeding, Brunszvik u. 2, Martonvásár 2462, Hungary; E-Mail:;Institute of Plant Breeding, Seed Science and Population Genetics, University of Hohenheim, Fruwirthstraβe 21, Stuttgart 70599, Germany; E-Mail:

关键词: composite cross populations;    competition;    diversity;    farm-saved seed;    resilience;   

DOI  :  10.3390/su3101944

来源: mdpi

【 摘 要 】

In evolutionary plant breeding, crop populations with a high level of genetic diversity are subjected to the forces of natural selection. In a cycle of sowing and re-sowing seed from the plant population year after year, those plants favored under prevailing growing conditions are expected to contribute more seed to the next generation than plants with lower fitness. Thus, evolving crop populations have the capability of adapting to the conditions under which they are grown. Here we review the current state of research in evolutionary plant breeding and concentrate on the ability of evolving plant populations to deal with stressful, variable, and unpredictable environments. This resilience of evolving plant populations is seen as a major advantage under the predicted threats faced by agriculture such as global climate change. We have conducted an analysis of the strengths, weaknesses, opportunities and threats of this breeding approach and suggest how its concept can be broadened and expanded. Given the current legal restrictions for realizing the potential of evolutionary plant breeding, we call for a change in legislation to allow evolving crop populations to enter agricultural practice on a larger scale.

【 授权许可】

CC BY   
© 2011 by the authors; licensee MDPI, Basel, Switzerland.