It is estimated that world-wide existing germplasm collections contain about 7.5 million accessions of plant genetic resources for food and agriculture. Wheat (Triticum and Aegilops) represents the biggest group comprising 900 000 accessions. However, such a huge number of accessions is hindering a successful exploitation of the germplasm. The creation of core collections representing a wide spectrum of the genetic variation of the whole assembly may help to overcome the problem. Here we demonstrate the successful utilisation of such a core collection for the identification and molecular mapping of genes (Quantitative Trait Loci) determining the agronomic traits flowering time and grain yield, exploiting a marker-trait-association based technique. Significant marker-trait associations were obtained and are presented. The intrachromosomal location of many of these associations coincided with those of already identified major genes or quantitative trait loci, but others were detected in regions where no known genes have been located to date.
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AGRIS - 国际农业科技情报系统
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卷
47
期
Special Issue
页码
S43
- S48
ISSN
1212-1975 | 1805-9325
出版者
Czech Academy of Agricultural Sciences
其它主题
Ex situ collections; Flowering time; Grain yield
语言
英语
2024-12-12
2026-02-03
DOAJ