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040			_cUAS Dharwad
041			_aEnglish
082			_a581.56 _bLIK
100			_aLikhith H. R.
245			_aGenetic Variability and Molecular Assesment of Oil Content and Seed Yield Traits in Safflower (Carthamus tinctorius L.) Ril Population
250			_aM.Sc. (Agri)
260			_aDharwad _bUniversity of Agricultural Sciences _c2024
300			_a194 _c32 Cms
520			_aABSTRACT The present study illustrated genetic variability, character association and mapping of QTLs associated with oil content and seed yield traits in safflower RILs. Significant genetic variability was observed for yield and yield attributing traits. High PCV and GCV values were recorded for harvest index and number of secondary branches per plant, respectively. Number of secondary branches per plant, number of primary branches per plant and number of seeds per capitulum exhibited high heritability coupled with high genetic advance as per cent of mean indicating the scope for effective selection. Test weight recorded a strong positive correlation coupled with positive direct effect on seed yield per plant. Hence, direct selection for this trait would be effective for the identification of high yielding genotypes. Out of 30 polymorphic markers genotyped, 10 markers followed the expected 1:1 Mendelian ratio. The genotypic data obtained helped to form 2 linkage groups (LG 6 and LG 8), which were associated with oil content and seed yield traits. Single marker analysis identified 21 markers, SafM-312, ct-40, SafM-86, CtDES-408, SafM-510, ct-235, CtDES-265, SafM-694, CtDES- 171, SafM-192, SafM-592, SafM-10, CAT-18, CtDES-81, ct-12, CtDES-10, CtDES-144, CtDES-211, CtDES-72, SafM-316 and SafM-519 which were found to be significantly (0.01%) associated with various oil content and seed yield traits. Inclusive Composite interval mapping detected the putative genomic regions associated with oil content and seed yield traits. Phenotypic variance explained by each QTL ranged from 5.12 per cent to 13.44 per cent. Three QTLs, CtDES-265-ct40 (hull content and oil content), CAT-18–SafM-694 (oil content) and CtDES-408-SafM-510 (test weight) showed larger PVE values (>10%) with LOD score of 7.22 (hull content) and 6.9 (oil content), 4.92 and 7.45 respectively. These findings suggest that LG-6 contains key loci influencing test wight, hull content and oil content in safflower.
650			_aGenetics and Plant Breeding
700			_aNayidu N. K.
942			_cTH _eM.Sc. (Agri) _h581.56 _kLIK _n0 _6581_560000000000000
999			_c70862 _d70862