TY - JOUR T1 - An intervarietal genetic linkage map of Indian bread wheat (Triticum aestivum L.) and QTL maps for some metric traits. AU - Nalini,E, AU - Bhagwat,S G, AU - Jawali,N, PY - 2007/9/27/pubmed PY - 2008/1/19/medline PY - 2007/9/27/entrez SP - 165 EP - 79 JF - Genetical research JO - Genet Res VL - 89 IS - 3 N2 - Bread wheat (Triticum aestivum L.) exhibits very narrow genetic diversity and hence there is high relatedness among cultivated varieties. However, a population generated from an intervarietal cross, with the parents differing in a large number of traits, could lead to the generation of QTL maps which will be useful in practice. In this report a genetic linkage map of wheat is constructed using a cross between two Indian bread wheat varieties: Sonalika and Kalyansona. The linkage map consisted of 236 markers and spanned a distance of 3639 cM, with 1211.2 cM for the A genome, 1669.2 cM for the B genome, 192.4 cM for the D genome and 566.2 cM for unassigned groups. Linkage analysis defined 37 linkage groups of which 24 were assigned to 17 chromosomes. The genetic map was used to identify QTLs by composite internal mapping (CIM) for three metric traits, viz. culm length (CL), flag leaf length (FLL) and flag leaf breadth (FLB). Of 25 QTLs identified in this study, 15 have not been reported previously. Multitrait CIM (MCIM) analysis was carried out for traits that were significantly correlated such as FLB-FLL and CL-FLB-FLL. Detection of a large number of QTLs for the three traits analysed suggests that in parent cultivars that are not too diverse, the differences at genetic level detected as polymorphisms may be mostly associated with QTLs for the observed differences. UR - https://www.unboundmedicine.com/medline/citation/17894910/An_intervarietal_genetic_linkage_map_of_Indian_bread_wheat__Triticum_aestivum_L___and_QTL_maps_for_some_metric_traits_ L2 - https://www.cambridge.org/core/product/identifier/S0016672307008828/type/journal_article DB - PRIME DP - Unbound Medicine ER -