Genetic Resources, Diversity and Association Mapping in Peanut uri icon

abstract

  • Globally, peanut is an important crop, providing both oil and protein,and gene banks across the world have conserved a large collectionof peanut germplasm including wild Arachis species. The key to thesuccess in crop improvement depends on how effectively and effi cientlythe new genetic variation is introduced to broaden the genetic baseof cultigens. The genus Arachis harbors considerable diversity formorpho-agronomic traits including resistance to abiotic and bioticstresses. Impressive progress have been made towards developinga large number of markers specific to peanut in addition to thetechnological breakthrough in developing high-throughput genotypingplatforms for unlocking the genetic variation present in the germplasmcollections. Using core and mini core collections and genomic tools,peanut researchers have identifi ed a number of diverse germplasmpossessing agronomically benefi cial traits that are now being used inpeanut breeding. Amphidiploids originating from distant wild Arachisspecies crosses are expected to unravel the variation not earlier availableto peanut research community due to bottlenecks associated withpeanut domestication

publication date

  • 2013