Author(s)

Krishna Shilpa, Gururaj Sunkad, Srinivasu Kurella, Swati Marri, Kollipara Padmashree, Deepak R. Jadhav, Kanwar Lal Sahrawat, Nalini Mallikarjuna

All India Coordinated Research Project on Groundnut, Main Agricultural Research Station, University of Agricultural Sciences, Raichur, India.
Department of Biotechnology, School of Life Sciences, University of Hyderabad, Hyderabad India..
Department of Plant Sciences, School of Life Sciences, University of Hyderabad, Hyderabad, India.
International Crops Research Institute for Semi Arid Tropics (ICRISAT), Patancheru, India.

Genetic diversity in peanut (Arachishypogaea L.) is narrow due to its evolution and domestication processes. Amphidiploids and autotetraploids (newly synthesized tetraploids) were created to broaden its genetic base. Molecular analysis has shown that the newly synthesized tetraploids had broader genetic base; and were genetically divergent when compared to cultivated peanut. Nutritional composition relative to oil, fatty acid composition, O/L ratio, protein, iodine value and presence of plant proteinase inhibitors such as trypsin and chymotrypsin inhibitors were studied in the synthesized tetraploids. Some of the newly synthesized tetraploids had higher amounts of proteinase inhibitors. Evaluation of newly synthesized tetraploids revealed several lines resistant to late leaf spot (LLS) and peanut bud necrosis disease (PBND).

Amphidiploid; Autotetraploid; Biochemical; Disease Resistance; Fatty Acid; Late Leaf Spot; Peanut;

K. Shilpa, G. Sunkad, S. Kurella, S. Marri, K. Padmashree, D. Jadhav, K. Sahrawat and N. Mallikarjuna, "Biochemical Composition and Disease Resistance in Newly Synthesized Amphidiploid and Autotetraploid Peanuts," Food and Nutrition Sciences, Vol. 4 No. 2, 2013, pp. 169-176. doi: 10.4236/fns.2013.42024.