Mapping of quantitative traits in generations derived from two doubled haploid lines of Brassica oleracea
| MSI99P1610 | |
| Badaloo, M. G. H. | |
| University of Birmingham, Faculty of Science, Birmingham | |
| Mapping of quantitative traits in generations derived from two doubled haploid lines of Brassica oleracea | |
| Thesis, M.Sc. | |
| Thesis | |
| 1994 | |
| 135 p., 25 tbls., 29 figs.,11 appen | |
| En | |
| En | |
| The study, biometrical genetics and QTL mapping of eight quantitative traits in generations derived from a cross between two doubled haploid (DH) lines, together with 110 DH lines and 20 Substitution Lines was undertaken Two major approaches to mapping of quantitative traits, Flanking Marker and Marker Regression, have been applied to 110 DH lines. Results clearly indicate that the two techniques give strikingly similar results. However, the Marker Regression method is believed to be more powerful in terms of precision and reliability. QTL analysis was performed using 153 RFLP markers distributed uniformly across the nine linkage groups. QTLs located on chromosome 1, 2, 3, 4, 6, 8 and 9 affect Plant Height. Petiole Length is under the expression of polygenes located on chromosome 1, 3, 4, 7 and 9. On the other hand, Leaf Length is under the control of QTLs on chromosome 1, 3, 7, 8 and 9. Leaf Width seems to be affected by only three QTLs which are located on chromosome 4, 5 and 7. | |
| GENETICS | |
| Genetics | |
| 1994-12-26 | |
| En | |
| PB |