The present book has been written to understand the basic concept of a Genetic Variability among Cultivated and Indo-African derivatives of Pigeonpea. These book show the utility of RAPD and SSR marker for the identification of germplsam of pigeonpea and it's allied species. Our aim is to meet the needs of investigators entering molecular biology from other fields and to orient students joining this discipline for the first time.The book will also be helpful to the students and research scientists.