Peg Biology: Deciphering the Molecular Regulations Involved During Peanut Peg Development

Kumar, R and Pandey, M K and Roychoudhry, S and Nayyar, H and Kepinski, S and Varshney, R K (2019) Peg Biology: Deciphering the Molecular Regulations Involved During Peanut Peg Development. Frontiers in Plant Science (TSI), 10 (1289). pp. 1-17. ISSN 1664-462X

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Peanut or groundnut is one of the most important legume crops with high protein and oil content. The high nutritional qualities of peanut and its multiple usage have made it an indispensable component of our daily life, in both confectionary and therapeutic food industries. Given the socio-economic significance of peanut, understanding its developmental biology is important in providing a molecular framework to support breeding activities. In peanut, the formation and directional growth of a specialized reproductive organ called a peg, or gynophore, is especially relevant in genetic improvement. Several studies have indicated that peanut yield can be improved by improving reproductive traits including peg development. Therefore, we aim to identify unifying principles for the genetic control, underpinning molecular and physiological basis of peg development for devising appropriate strategy for peg improvement. This review discusses the current understanding of the molecular aspects of peanut peg development citing several studies explaining the key mechanisms. Deciphering and integrating recent transcriptomic, proteomic, and miRNA-regulomic studies provide a new perspective for understanding the regulatory events of peg development that participate in pod formation and thus control yield.

Item Type: Article
Divisions: Research Program : Genetic Gains
CRP: CGIAR Research Program on Grain Legumes and Dryland Cereals (GLDC)
Uncontrolled Keywords: Abscisic acid, Embryo abortion, Peanut, Gravitropism, Phototropism, Hormone cross-talk, miRNAregulomics, Molecular omics
Subjects: Others > Abiotic Stress
Others > Molecular Biology
Others > Plant Breeding
Mandate crops > Groundnut
Others > Oilseeds
Others > Genetics and Genomics
Others > Food and Nutrition
Others > Legume Crops
Depositing User: Mr Arun S
Date Deposited: 08 Nov 2019 07:50
Last Modified: 08 Nov 2019 07:50
Official URL:
Acknowledgement: RK and RV thank Science & Engineering Research Board (SERB) of Department of Science & Technology (DST), Government of India for providing National- Post Doctoral Fellowship (SERB/F/4863/2017-2018) and J C Bose National Fellowship (SB/S9/Z-13/2019), respectively. This study has been supported in parts by SERB, Bill & Melinda Gates Foundation (Tropical Legumes III) and CGIAR Research Program on Grain Legumes and Dryland Cereals (GLDC). ICRISAT is a member of the CGIAR.
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