MOLECULAR MAPPING AND LOCALIZATION OF STABLE QTLs FOR CHARCOAL ROT RESISTANCE IN SORGHUM {Sorghum bicolor{\..) Moench)
| dc.contributor.advisor | B. FAKRUDIN | |
| dc.contributor.author | PALAMREDDY S. REDDY | |
| dc.date.accessioned | 2019-06-20T12:07:46Z | |
| dc.date.available | 2019-06-20T12:07:46Z | |
| dc.date.issued | 2007-08-30 | |
| dc.description.abstract | The genetic architecture of charcoal rot resistance and drought tolerance through the construction of molecular linkage maps and identification of QTLs can expectedly hasten the development of charcoal rot and drought tolerant sorghum cultivars. A set of 93 Recombinant Inbred Lines (RlLs) derived from IS22380 and E36-1 were evaluated for charcoal rot incidence and its related traits in sick plot at Main Agricultural Research Station, Dharwad and Regional Agricultural Research Station, Bijapur during rabi 2004. The RlLs displayed highly significant differences in their mean performance for all traits. A total of 240 RAPD, 262 genomic SSR and 20 genie SSR markers were used and of which 19 RAPD, 62 genomic SSRs and 4 genie SSR markers were found to be polymorphic between parents. All 85 markers genotyped across RILs and a genetic linkage map was constructed by using MAPMAKER/EXP b 3.0 in which 80 markers were assigned to A, B, C, D, E, F, G, H, I and J linkage groups. A total genomic length of 650.3 cM was covered in this map. QTL analysis by composite interval mapping using QTL Cartographer (v2.5) indicated five and four QTLs for charcoal rot component traits at Dharwad and Bijapur locations respectively on A, B, D and 1 linkage groups. Three QTLs, one each for length of infection (xtxp297 on B), number of internodes crossed by the fungus (AC13 on A) and per cent lodging (xtxp343) explaining a phenotypic variance of 9.29, 12.54 and 15.2 per cent respectively were detected consistently between two locations and are considered to be the stable across environments. | en_US |
| dc.identifier.other | TH8748 | |
| dc.identifier.uri | http://krishikosh.egranth.ac.in/handle/1/5810109383 | |
| dc.language.iso | en | en_US |
| dc.pages | 133 | en_US |
| dc.publisher | University of Agricultural Sciences GKVK, Banglore | en_US |
| dc.sub | Biotechnology | en_US |
| dc.subject | null | en_US |
| dc.theme | MOLECULAR MAPPING AND LOCALIZATION OF STABLE QTLs FOR CHARCOAL ROT RESISTANCE IN SORGHUM {Sorghum bicolor{\..) Moench) | en_US |
| dc.these.type | M.Sc | en_US |
| dc.title | MOLECULAR MAPPING AND LOCALIZATION OF STABLE QTLs FOR CHARCOAL ROT RESISTANCE IN SORGHUM {Sorghum bicolor{\..) Moench) | en_US |
| dc.type | Thesis | en_US |