Industry perspective, genetics and genomics of peanut blanchability

Shah, P and Wright, G and Nwosu, C V and O’Connor, D and Tsatsos, P and Janila, P and Praveen, K and Singh, K and Bera, S K and Thudi, M and Kole, C and Varshney, R K and Pandey, M K (2025) Industry perspective, genetics and genomics of peanut blanchability. Plant Science (TSI), 355. pp. 1-8. ISSN 0168-9452

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Abstract

Blanching is the process of removing the testa or seed coat (skin) from peanuts, and a genotype's capacity to release its testa is referred to as its blanchability. The genotype, seed quality, harvest date, level of maturity, as well as the length of time and temperature of the post-harvest storage period, all influence peanut's blanchability. This characteristic holds significant value in the production of food items made from peanuts. However, major research on this economically significant trait in breeding programmes has been limited. Blanchability is reported to be a highly heritable and genetically regulated trait, thus breeding and selection should be effective. Blanchability reports to be fixed in the early generations due to its relatively simple genetic control, hence choice of parents which have good blanchability is of utmost importance in a breeding programme. Since blanching percentage possess high genetic control with very low genotype × environment (G×E) interactions, effective selection for improved blanchability can be conducted in early generations. In peanut, blanchability is a great target trait for marker-assisted selection (MAS), but possess few factors that makes it difficult breeding target. These factors, include the high cost operations to measure blanchability and the relatively large seed size in particular, prevent testing in early generations. In this review, we emphasize genetic research on this trait, its relationship to other traits, factors influencing it, methods of measurement, its industrial significance, as well as initiatives and difficulties related to its improvement.

Item Type:	Article
Divisions:	Global Research Program - Accelerated Crop Improvement
CRP:	UNSPECIFIED
Uncontrolled Keywords:	Arachis hypogaea, Blanching, Genotype, Heritability, Peanut
Subjects:	Mandate crops > Groundnut Others > Genetics and Genomics
Depositing User:	Mr Nagaraju T
Date Deposited:	16 Jun 2025 03:59
Last Modified:	16 Jun 2025 03:59
URI:	http://oar.icrisat.org/id/eprint/13154
Official URL:	https://www.sciencedirect.com/science/article/pii/...
Projects:	ICAR-ICRISAT project, India
Funders:	Mars-Wrigley, Bill & Melinda Gates Foundation
Acknowledgement:	P. S. acknowledges Joint Council of Scientific and Industrial Research-University Grant Commission (CSIR-UGC), Government of India for the award of fellowship for a Ph.D.
Links:	Google Scholar

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