The grain quality of wheat wild relatives in the evolutionary context.
Theor Appl Genet
; 135(11): 4029-4048, 2022 Nov.
Article
em En
| MEDLINE
| ID: mdl-34919152
ABSTRACT
KEY MESSAGE We evaluated the potential of wheat wild relatives for the improvement in grain quality characteristics including micronutrients (Fe, Zn) and gluten and identified diploid wheats and the timopheevii lineage as the most promising resources. Domestication enabled the advancement of civilization through modification of plants according to human requirements. Continuous selection and cultivation of domesticated plants induced genetic bottlenecks. However, ancient diversity has been conserved in crop wild relatives. Wheat (Triticum aestivum L.; Triticum durum Desf.) is one of the most important staple foods and was among the first domesticated crop species. Its evolutionary diversity includes diploid, tetraploid and hexaploid species from the Triticum and Aegilops taxa and different genomes, generating an AA, BBAA/GGAA and BBAADD/GGAAAmAm genepool, respectively. Breeding and improvement in wheat altered its grain quality. In this review, we identified evolutionary patterns and the potential of wheat wild relatives for quality improvement regarding the micronutrients Iron (Fe) and Zinc (Zn), the gluten storage proteins α-gliadins and high molecular weight glutenin subunits (HMW-GS), and the secondary metabolite phenolics. Generally, the timopheevii lineage has been neglected to date regarding grain quality studies. Thus, the timopheevii lineage should be subject to grain quality research to explore the full diversity of the wheat gene pool.
Texto completo:
1
Bases de dados:
MEDLINE
Assunto principal:
Triticum
Tipo de estudo:
Prognostic_studies
Limite:
Humans
Idioma:
En
Revista:
Theor Appl Genet
Ano de publicação:
2022
Tipo de documento:
Article
País de afiliação:
Alemanha