%0 Journal Article %@ 1664-462X %A Kumar, R %A Pandey, M K %A Roychoudhry, S %A Nayyar, H %A Kepinski, S %A Varshney, R K %D 2019 %F icrisat:11332 %I Frontiers Media %J Frontiers in Plant Science (TSI) %K Abscisic acid, Embryo abortion, Peanut, Gravitropism, Phototropism, Hormone cross-talk, miRNAregulomics, Molecular omics %N 1289 %P 1-17 %T Peg Biology: Deciphering the Molecular Regulations Involved During Peanut Peg Development %U http://oar.icrisat.org/11332/ %V 10 %X 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. %Z 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.