The study was carried to investigate the inheritance of gene action for various morpho-phenological traits in bread wheat at the Haryana Agricultural University, Hisar during rabi 2013-14 and 2014-15. A set of six generations (P1, P2, F1, F2, B1 and B2) of each two cross combinations (P 12210/Raj MR 1 and P 12231/Raj MR 1) was grown in the compact family block design in three replications and the morpo-phenological traits such as plant height, biomass per plant, harvest index, days to heading and days to maturity were observed. High values of PCV, GCV, heritability and genetic advance were observed for all the traits in the study. The results regarding gene effects indicated that plant height, days to heading and days to maturity were predominantly governed by additive gene effects, while biomass per plant and harvest index were predominantly governed by dominance gene effects. Components of genetic variances indicated additive variance for days to heading and days to maturity and dominance variance for biomass per plant, while both additive and dominance components of genetic variance were important for plant height and harvest index. Thus, it is suggested to perform selection in early generations for phonological traits like days to heading and days to maturity while selfing for few generations required before selection in remaining traits.

Growth hormone releasing hormone receptor (GHRHR) is a trans-membrane receptor belonging to the Class-II GPCR family. GHRHR activates growth-hormone production consequent upon triggering somatotroph proliferation. Unlike in mammals, information on teleosts GHRHR is insufficient. Here, GHRHR cDNA has been cloned from the brain tissue of Labeo rohita, a large-bodied farmed carp. It is a 1320 bp transcript consisting of an ORF (open reading frame) translatable to a 416aa long polypeptide. Relative mRNA expressions of GHRHR in various organs of different age groups (i.e. juvenile, young and adult) were estimated by using q-RT PCR analyses. Phylogenetically GHRHR was closer to Cyprinidae family. It was found to be 92-93% similar to Carassius auratus followed by Danio rerio. It was abundantly expressed in the pituitary and brain followed by male/female gonads of all age groups in rohu; demonstrating its possible functions may not be restricted to GH release only, but also in many other developmental and physiological regulations. The predicted stable 3D structure and protein-protein interactions provided the clue about its diversified networking roles. Our findings could be of great help for future studies to delineate its multidirectional neuroendocrine roles in various organs in teleosts.