The peanut genome is being sequenced and analyzed as part of the (201) 507-3784, in order to accelerate breeding progress and get more productive, disease-resistant, stress-tolerant varieties to farmers. The two diploid progenitors have been sequenced and are available, along with predicted genes and descriptions. The genomes of the diploid progenitors have been used to help identify and assemble the similar chromosomes in cultivated peanut.
Cultivated peanut, Arachis hypogaea, is an allotetraploid (2n=4x=40) that contains two complete genomes, labeled the A and B genomes. septa (2n=2x=20) has likely contributed the A genome, and A. ipaensis has likely contributed the B genome. It may be helpful to remember these two associations by using the mnemonic: "A" comes before "B" and "duranensis" comes before "ipaensis".
For cultivated peanut, Arachis hypogaea cv. Tifrunner:
For the diploid progenitor Arachis duranensis:
For the diploid progenitor Arachis ipaensis:
More about Arachis ... (Download a short review on 'Arachis duranensis, Arachis ipaensis, and the Origins of Cultivated Peanut')
Let us know if you have questions, requests, or data to contribute.