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Journal article
Improvement and re-evolution of tetraploid wheat for global environmental challenge and diversity consumption demand
International Journal of Molecular Sciences, Vol.23(4), Article 2206
2022
Abstract
Allotetraploid durum wheat is the second most widely cultivated wheat, following hexaploid bread wheat, and is one of the major protein and calorie sources of the human diet. However, durum wheat is encountered with a severe grain yield bottleneck due to the erosion of genetic diversity stemming from long-term domestication and especially modern breeding programs. The improvement of yield and grain quality of durum wheat is crucial when confronted with the increasing global population, changing climate environments, and the non-ignorable increasing incidence of wheat-related disorders. This review summarized the domestication and evolution process and discussed the durum wheat re-evolution attempts performed by global researchers using diploid einkorn, tetraploid emmer wheat, hexaploid wheat (particularly the D-subgenome), etc. In addition, the re-evolution of durum wheat would be promoted by the genetic enrichment process, which could diversify allelic combinations through enhancing chromosome recombination (pentaploid hybridization or pairing of homologous chromosomes gene Ph mutant line induced homoeologous recombination) and environmental adaptability via alien introgressive genes (wide cross or distant hybridization followed by embryo rescue), and modifying target genes or traits by molecular approaches, such as CRISPR/Cas9 or RNA interference (RNAi). A brief discussion of the future perspectives for exploring germplasm for the modern improvement and re-evolution of durum wheat is included.
Details
- Title
- Improvement and re-evolution of tetraploid wheat for global environmental challenge and diversity consumption demand
- Authors/Creators
- F. Yang (Author/Creator) - Murdoch UniversityJ. Zhang (Author/Creator) - Murdoch UniversityQ. Liu (Author/Creator) - Murdoch UniversityH. Liu (Author/Creator) - Murdoch UniversityY. Zhou (Author/Creator) - Sichuan Agricultural UniversityW. Yang (Author/Creator) - Sichuan Academy of Agricultural SciencesW. Ma (Author/Creator) - Murdoch University
- Publication Details
- International Journal of Molecular Sciences, Vol.23(4), Article 2206
- Publisher
- MDPI
- Identifiers
- 991005546008007891
- Copyright
- © 2022 by the authors
- Murdoch Affiliation
- College of Science, Health, Engineering and Education; Australia-China Joint Centre for Wheat Improvement
- Language
- English
- Resource Type
- Journal article
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- Collaboration types
- Domestic collaboration
- International collaboration
- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.4 Crop Science
- 3.4.96 QTL
- Web Of Science research areas
- Biochemistry & Molecular Biology
- Chemistry, Multidisciplinary
- ESI research areas
- Chemistry