AI Article Synopsis
- Wheat is facing yield challenges due to current breeding limitations and environmental stresses, making stress-resistance breeding essential for improving crop stability.
- Researchers conducted a meta-analysis to identify 60 key loci related to wheat breeding goals, enhancing features like stress resistance and yield.
- They developed a liquid phase chip using genotyping by target sequencing (GBTS), allowing efficient screening of wheat germplasm for favorable traits, thus streamlining molecular-assisted selection for breeders.
Article Abstract
Unlabelled: Wheat is an essential food crop and its high and stable yield is suffering from great challenges due to the limitations of current breeding technology and various stresses. Accelerating molecularly assisted stress-resistance breeding is critical. Through a meta-analysis of published loci in wheat over the last two decades, we selected 60 loci with main breeding objectives, high heritability, and reliable genotyping, such as stress resistance, yield, plant height, and resistance to spike germination. Then, using genotyping by target sequencing (GBTS) technology, we developed a liquid phase chip based on 101 functional or closely linked markers. The genotyping of 42 loci was confirmed in an extensive collection of Chinese wheat cultivars, indicating that the chip can be used in molecular-assisted selection (MAS) for target breeding goals. Besides, we can perform the preliminary parentage analysis with the genotype data. The most significant contribution of this work lies in translating a large number of molecular markers into a viable chip and providing reliable genotypes. Breeders can quickly screen germplasm resources, parental breeding materials, and intermediate materials for the presence of excellent allelic variants using the genotyping data by this chip, which is high throughput, convenient, reliable, and cost-efficient.
Supplementary Information: The online version contains supplementary material available at 10.1007/s11032-023-01359-3.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10248658 | PMC |
| http://dx.doi.org/10.1007/s11032-023-01359-3 | DOI Listing |
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