Gene actions for yield and its attributes and their implications in the inheritance pattern over three generations in opium poppy ( Papaver somniferum L.)

Journal of genetics

SUDHIR SHUKLA1²  S.N. JENA¹  BRIJ K. MISHRA²  R. MISHRA² 

[1] Genetics and Molecular Biology Group, National Botanical Research Institute, Lucknow 226 001, India$$;Department of Genetics and Plant Breeding, ational Botanical Research Institute, Lucknow 226 001, India$$

关键词: gene action;    global demand;    heterosis;    inheritance;    opium poppy;    Papaver somniferum L.;   

DOI  :  

学科分类：生物科学（综合）

来源: Indian Academy of Sciences

【 摘 要 】

The gene actions for yield and its attributes and their inheritance pattern based on five parameter model have been explored in four single crosses (NBIHT-5 ×NBIHT-6, NBIHT-5×NBMHT-1, NBMHT-1× NBIHT-6 and NBMHT-2× NBMHT-1) obtained using thebaine rich pure lines of opium poppy (Papaver somniferum L.) for three consecutive generations. All the traits showed nonallelic mode of interaction, however, dominance effect (h) was more pronounced for all the traits exceptthebaine and papaverine. The dominance × dominance (l) effects were predominant over additive × additive (i) for all traits in all the four crosses except for papaverine. The seed and opium yield, and its contributing traits inherited quantitatively. The fixable gene effects (d) and (i) were lower in magnitude than nonfixable (h) and (l) gene effects. The estimates of heterosis werealso higher in comparison to the respective parents which suggested preponderance of dominance gene action for controlling most of the traits. The phenotypic coefficient of variation was marginally higher than those of genotypic coefficient of variation for all the traits. The traits thebaine, narcotine, morphine and opium yield had high heritability coupled with high genetic advance. The leaf number, branches per plant and stem diameter showed positive correlation with opium and seed yields. The selection of plants having large number of leaves, branches and capsules with bigger size would be advantageous to enhancethe yield potential.

【 授权许可】

Unknown