Presenter : M.Srinivas

Type: Poster

The centre of origin of the cultivated peanut is observed in the area of northern Argentina and southern, but the questions related to its evolutionary history and domestication is still unanswered. The closest known relatives of the peanut are 26 wild species of the genus Arachis that occur in south-central South America. Some of the wild peanut species have been useful in breeding improved peanut varieties. Domesticated crop plants and their related wild species represent the biological foundation upon which world food security is based, but the biological diversity are imminently threatened by genetic erosion  due to natural hazards. Spatial analysis are used to address three key issues for the resource conservation and use of  peanut genetic resources: (1) spatial analyses at the genomic level to elucidate the geographic origin of the cultivated peanut, (2) climatic adaptation analysis for each species, and (3) prioritization modelling for conservation. Peanuts distribution should be modelled to evaluate the impact of climate change on the distribution of species.

Using DIVA-GIS software, Peanuts distribution will be modelled and we will study the impact of climate change throughout the year to know the population of these species. Statistical Analysis will be carried out to know the variations in the growth of species and environmental values are used to fit a model to estimate similarity to the sites of occurrence, or another measure such as  abundance of the species. Further a mathematical model will be built to predict the species distribution for future climate (i.e. 2070) from the present climate data and to study the impact of climate changes on species.

keywords: Arachis hypogaea, DIVA-GIS