Role and economic importance of crop genetic diversity in food security

  title={Role and economic importance of crop genetic diversity in food security},
  author={Begna Temesgen},
Information on genetic variability in cowpea germplasm is important for crop improvement and for efficient utilization of the existing genetic resources. Hence, the objectives of the present investigation were to estimate genetic variability, 
Combining ability analysis in bitter gourd (Momordica charantia L.) for potential quality improvement.
Targeting the improvement of respective characters in bitter gourd, combining ability and genetic parameters for 19 characters were estimated from a 6×6 full diallel analysis technique and revealed that the variances due to general combining ability (GCA) and specific combiningAbility (SCA) were highly significant for most of the important characters.


Diversifying Selection in Plant Breeding
Natural variation rather than genetic modification is the way to achieve global food security, according to scientists at the European Food Safety Authority.
Importance and Impact of Ecological Approaches to Crop Domestication
It is now believed that plant domestication was much more complex in evolutionary terms and of wider geographical extent than previously believed.
Accessing genetic diversity for crop improvement.
Genetic diversity and genetic vulnerability—an appraisal
Research does not support the contention that modern, genetically-uniform cultivars are necessarily less stable and less dependable than genetically-variable cultivars and it is suggested that these changes will not result in a concentration of fewer varieties used worldwide.
Ending world hunger. The promise of biotechnology and the threat of antiscience zealotry.
During the 20th century, conventional breeding produced a vast number of varieties and hybrids that contributed immensely to higher grain yield, stability of harvests, and farm income. Despite the
Assessment of genetic diversity in crop plants - an overview
An attempt is being made for comprehensive compilation of overall concepts in the area of genetic diversity, which could be of immense significance for extending knowledge and meaningful research.
Genetic erosion in maize’s center of origin
It is found that previous assessments of on-farm maize diversity in Mexico are flawed and conceal widespread genetic erosion that could thwart current food security strategies for climate adaptation.
Consequences of Plant Breeding on Genetic Diversity
The impact of plant breeders’ activities i.e. introduction, selection and hybridization on plant genetic diversity have been reviewed and it may be generalized that losses of genetic diversity occurred but followed spatial and sometimes temporal trends.
Genetic diversity of barley landrace accessions (Hordeum vulgare ssp. vulgare) conserved for different lengths of time in ex situ gene banks
Genetic diversity levels were assessed for morphological and isozyme markers within gene bank accessions of two barley landraces from Syria that had been stored for 10, 40 and 72 years, and it was estimated that the effective population size of rejuvenation populations over their period in storage was only 4.7.
Plant domestication, a unique opportunity to identify the genetic basis of adaptation
It is concluded that bottom-up approaches to understanding domestication as an adaptive process hold greater promise both for the study of adaptation and as a means to identify genes that contribute to agronomically important traits.