Genetic improvement in Jatropha curcas through selection and breeding

Abstract

Jatropha curcas L. has been labeled globally as the most likely crop for future biofuels. However, it suffers from low seed yield and high plant growth. Therefore, systematic selection from the existing germplasm, their breeding for improved characteristics and later domestication are the prerequisites to achieve genetic improvement in this species. To initiate breeding programme in any species, it is essential to assess the extent of the existing variability before embarking upon selection of superior germplasm. Further knowledge is needed on the reproductive biology of Jatropha, including its phenology, and molecular diversity in order to improve its productivity, the ultimate objective being to mass multiply improved true-to-type germplasm. In this review, we made an attempt to discuss the currently available information on Jatropha particularly the genetic variability in the species and possibilities for exploitation of the genetic potential for its improvement.