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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Yan, G. J. Ma, J. Zhang, C. Y. Liu, C. J. |
| Description | Country affiliation: Australia Author Affiliation: Ma J ( Plant Industry, CSIRO, Brisbane, Queensland, Australia.) |
| Abstract | Durum wheat (Triticum turgidum durum; 2n = 4x = 28; genome AABB) has long been an important food resource for human diets. The projected increase of the world's population to 9.1 billion by 2050 has highlighted the importance and urgency for improving the yield and quality performance of durum wheat. A backcrossed population, which was derived from the durum wheat variety 'Bellaroi' (recurrent parent) and the hexaploid genotype 'CSCR6' (donor parent), was used to investigate the feasibility of improving yield- and quality-related traits of durum wheat by introgressing chromosome fragments from hexaploid wheat. The population means for grain protein content, gluten content, spike length, and spikelet number were improved compared with those of the recurrent parent 'Bellaroi'. A small proportion of the backcross population lines showed significant improvements in spike length and spikelet number compared with the recurrent parent 'Bellaroi'. Some loci with significant effects for plant height, spike length, spikelet number, and thousand-grain weight were identified. Several of these loci affected more than one trait. These results showed that the introgression of chromosome fragments from 'CSCR6' into the durum genetic background could be an effective method for improving yield and quality traits of durum wheat. In addition, the loci showing significant effects on desired traits in this study could be fine mapped using an F2 population obtained by backcrossing the lines that carry the positive allele(s) with the recurrent parent. |
| e-ISSN | 16765680 |
| Journal | Genetics and Molecular Research |
| Issue Number | 4 |
| Volume Number | 12 |
| Language | English |
| Publisher | Fundação de Pesquisas Científicas de Ribeirão Preto |
| Publisher Date | 2013-12-02 |
| Publisher Place | Brazil |
| Access Restriction | Open |
| Subject Keyword | Chromosomes, Plant Plant Shoots Genetics Triticum Alleles Gene Flow Genes, Plant Genetic Markers Genotype Microsatellite Repeats Growth & Development Ploidies Polymorphism, Genetic Research Support, Non-u.s. Gov't Discipline Genetics Discipline Molecular Biology Discipline Bioinformatics |
| Content Type | Text |
| Resource Type | Article |
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