Abstract
Groundnut is one of the world's most significant commercial oilseed crops. Previously, superior breeding lines and cultivars were primarily employed in most of the groundnut breeding programmes, resulting in a limited genetic base. A thorough evaluation of core collections makes it possible to access germplasm for crop development. A total of 184 mini core genotypes of groundnut were used for validating already reported 55 AhTE molecular markers (Arachis hypogaea transposable element) in the present study (6 AhTE markers for number of primary branches, 5 for plant height, 7 for pod yield per plant, 12 for number of pods per plant, 2 for shelling percentage, 12 for test weight, 9 for sound mature kernel weight percentage and 2 for oil content). Phenotyping was done during kharif 2018 (June to October) and twelve yield related parameters were recorded across 184 genotypes. Single marker analysis indicated a significant association of 40 markers (48 MTAs) at 5% probability level. Amongst these 48 MTAs, 39 MTAs exhibited utmost marker-trait associations with PVE estimate greater than 10%. Yield related AhTE markers validated in the present study might be used as viable tools for marker aided groundnut breeding for yield and yield-related parameters.
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