Overview
GenusArachis
Speciesipaensis
Common NameArachis ipaensis / wild peanut
Abbreviationaraip
Arachis ipaensis GBrowse genome browser (at Peanutbase.org)
Arachis ipaensis JBrowse genome browser (at Peanutbase.org)
Genome Assembly at NCBI
The publication associated with the Arachis ipaensis genome is available here: Bertioli, Dj et al. 2016

A. ipaensis, native to Bolivia, is thought to be one of the diploid ancestors of cultivated peanut. The genome of A. ipaensis has just been sequenced as part of the Peanut Genomics Initiative, to help in the accurate assembly of the tetraploid domestic peanut, A. hypogaea.

Cultivated peanut derived all of its genetic material from two wild ancestors, A. duranensis and A. ipaensis whose genomes merged several thousand years ago, in a rare genetic event. The wild species, therefore, have half as much genetic material as cultivated peanut. These two “simpler” genomes have first been sequenced toward achieving its ultimate goal: the complete genomic sequence for cultivated peanut.

The cultivated peanut is an allotetraploid (2n=4x=40) that carries both the A and B genomes and A. ipaensis (2n=2x=20) has likely contributed the B genome, the larger set of chromosomes in the karyotype. These two ancestral diploids separated from each other about 3 million years ago. The genome merger, allopolyploidy event, ocurred relatively very recently, five to ten thousand years ago, followed by domestication in South America from where it appeared in most part of the world by 1600.
More about Arachis ... (Download a short review on 'Arachis duranensis, Arachis ipaensis, and the Origins of Cultivated Peanut')


More information at:
Gramene Plant Reactome
Encyclopedia of Life
Germplasm accessions are available at ICRISAT via Genesys (Gateway to Genetic Resources).
Image Source: Plant Breeding, Genetics, and Genomics (PBGG) Graduate Student Association (GSA) at the University of Georgia
Feature Summary
The following features are currently present for this organism
Feature TypeCount
exon238,780
protein_match109,856
protein_hmm_match107,997
gene42,533
polypeptide42,533
mRNA42,533
syntenic_region7,086
supercontig1,183
chromosome10