Evolution of wheat architecture, physiology, and metabolism during domestication and further cultivation: Lessons for crop improvement

Katamadze, Artūrs; Vergara-Díaz, Omar; Uberegui, Estefanía; Yoldi-Achalandabaso, Ander; Araus, José Luis; Vicente, Rubén

doi:10.1016/j.cj.2023.06.006

Cited by 13 publications

(3 citation statements)

References 196 publications

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“…Phenotypic diversity re ects genetic diversity to a certain extent, but it is greatly affected by the environment and cannot accurately re ect genetic diversity in some cases (Katamadze. et al 2023).…”

Section: Correlation Analysis Between Phenotypic Traits and Geographi...mentioning

confidence: 99%

WITHDRAWN: Phenotypic Diversity of Wild Astragalus polycladus Resources

Liu,

Cai,

et al. 2023

Preprint

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To explore the phenotypic diversity of wild Astragalus polycladus resources, 150 wild Astragalus polycladus resources from 6 regions of Qinghai Province were used as materials, and 18 phenotypic traits were analyzed. The results showed that Astragalus polycladus had abundant phenotypic diversity in Qinghai Province, and the coefficient of variation of 18 phenotypic traits ranged from 1%-23%. Among them, the fertile tillers’ coarseness, fertile tillers’ length, and crown width are the most variable characteristics. Correlation analysis showed that there were significant or extremely significant correlations among other traits except for root number and stem length. At the same time, the phenotypic traits of Astragalus polycladus were related to latitude and longitude, altitude, and soil pH, and different traits were affected by different geographical factors, among which the corolla number was the most affected. Four principal components with eigenvalues greater than 1 were selected by principal component analysis, and the cumulative contribution rate was 77.151%, which contained most of the information about the phenotypic traits of Astragalus multicladus. Crown width and plant height had the greatest influence on the phenotypic traits diversity of Astragalus polycladus. These results indicate that the phenotypic traits of Astragalus polycladus resources in Qinghai Province are rich in diversity and have great potential for exploitation and utilization. This study provided a scientific basis for the breeding and preservation of superior germplasm resources of Astragalus polycladus.

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Section: Correlation Analysis Between Phenotypic Traits and Geographi...mentioning

confidence: 99%

WITHDRAWN: Phenotypic Diversity of Wild Astragalus polycladus Resources

Liu,

Cai,

et al. 2023

Preprint

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“…2). Considering the first allopolyploidization event occurred in wild environments [34], it is possible that the unclassified processes represent previously undiscovered factors contributing to the establishment of allopolyploids in wild environments. These unclassified genes should be the focus of future investigations.…”

Section: Enrichment Of Gene Ontology (Go) Terms Among the Homoeologou...mentioning

confidence: 99%

Decrease in Purifying Selection Pressures on Wheat Homoeologous Genes: TetraploidizationvsHexaploidization

Ezoe,

Todaka,

Utsumi

et al. 2024

Preprint

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A series of polyploidizations in higher–order polyploids is the main event affecting the gene contents in a genome, and this is frequently observed in domesticated plants. Each polyploidization event is expected to lead to functional divergence because of the associated decrease in the selection pressures on the duplicated genes, but it is unclear whether the initial tetraploidization or the subsequent higher–order polyploidization has a greater evolutionary impact on the duplicated genes. To address this uncertainty, we focused on the Triticum–Aegilops complex lineage and compared the selection pressures before and after the tetraploidization and hexaploidization events. The results indicated that while both events decreased the selection pressures on homoeologous gene pairs (compared with the selection pressures on their ancestral diploid and tetraploid orthologous genes), the initial tetraploidization had a greater impact on the selection pressures on homoeologous gene pairs than the subsequent hexaploidization. This was supported by the analyzed expression patterns. Surprisingly, the decreases in the selection pressures on these homoeologous genes were independent of the existence of in–paralogs within the same subgenome. This result suggests that unique functions are maintained in the homoeologous genes, including the functions that are unlikely to be preserved in duplicate gene pairs derived from other duplication mechanisms. We also revealed their unique functions were different between the tetra– and hexaploidization (e.g., Reproductive system and chromosome segregation processes). The findings of this study imply that the substantial number of gene pairs resulting from multiple allopolyploidization events, especially the initial tetraploidization, may have been a unique source of functional divergence.

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“…Domesticated or semi-domesticated plants were widespread, harboring allelic variants suitable for local environments. Traits lost over time can play a role in adapting cultivated species to specific climatic niches [ 46 , 57 , 58 , 59 ].…”

Section: Challenges For Modern Plant Breedingmentioning

confidence: 99%

Climate Change—The Rise of Climate-Resilient Crops

Kopeć

2024

Plants

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Climate change disrupts food production in many regions of the world. The accompanying extreme weather events, such as droughts, floods, heat waves, and cold snaps, pose threats to crops. The concentration of carbon dioxide also increases in the atmosphere. The United Nations is implementing the climate-smart agriculture initiative to ensure food security. An element of this project involves the breeding of climate-resilient crops or plant cultivars with enhanced resistance to unfavorable environmental conditions. Modern agriculture, which is currently homogeneous, needs to diversify the species and cultivars of cultivated plants. Plant breeding programs should extensively incorporate new molecular technologies, supported by the development of field phenotyping techniques. Breeders should closely cooperate with scientists from various fields of science.

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Evolution of wheat architecture, physiology, and metabolism during domestication and further cultivation: Lessons for crop improvement

Cited by 13 publications

References 196 publications

WITHDRAWN: Phenotypic Diversity of Wild Astragalus polycladus Resources

WITHDRAWN: Phenotypic Diversity of Wild Astragalus polycladus Resources

Decrease in Purifying Selection Pressures on Wheat Homoeologous Genes: TetraploidizationvsHexaploidization

Climate Change—The Rise of Climate-Resilient Crops

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