The Agrobacterium-mediated transformation of hairy roots creates a rapid and simple means to introduce and express foreign genes in plant cells that are capable of synthesizing specific natural products. We describe a method for the production of transgenic hairy root cultures of peanut (Arachis hypogaea L.) using Agrobacterium rhizogenes R1000, a strain with the binary vector pBI121. We evalua...

BACKGROUND AND AIMS Arachis batizocoi is a wild relative of cultivated peanut (A. hypogaea), an allotetraploid with an AABB genome. Arachis batizocoi was once considered the ancestral donor of the peanut B genome, but cytogenetics and DNA phylogenies have indicated a new genome classification, 'K'. These observations seem inconsistent with genetic studies and breeding that have shown that A. ba...

tries. Most allergic reactions are mediated by allergen-specific IgE antibodies. Therefore, development of a method for inhibiting allergen-specific IgE production is a useful approach to prevent food-allergic diseases. IgE synthesis is considered to be caused by development and activation of T helper-2 (Th2) cells and B cells. This specific Th2 cell produces predominantly interleukin (IL)-4 an...

Amplified Fragment Length Polymorphism (AFLP) was used to establish the genetic relationships among 20 species from seven of the nine sections of genus Arachis. The level of polymorphism among nine accessions of the cultivated peanut, A. hypogaea L., was also evaluated. Three combinations of primers were used to amplify the AFLPs. The fragments were separated in 6% denaturing acrylamide gels. A...

The seed protein contents and protein banding pattern were studied in commonly cultivated groundnut cultivars. The groundnut cultivars such as ICGV00351, TMV-7, CO-4,CO-6 and TG-374 were used for quantitative and qualitative analysis of seed proteins. The protein contents varied among the different varieties of groundnut. The maximum protein content was observed in CO-6 followed by CO-4, TMV-7,...

Peanut is one of the most important crops in the world, both for vegetative oil and as a protein source. Biotechnology approaches provide promising ways to increase peanut productivity, either through improved seed quality or stress resistance. These approaches require the identification of genes that control important agronomical traits, the understanding of gene regulation and metabolic pathw...

Groundnut genotype AK-280 was treated with EMS 40 mM, 60 mM, gamma rays 30 kR, 40 kR, 50 kR and combination treatment of EMS 20 mM + gamma rays 20 kR. The observations on various quantitative characters were recorded in M2 generation. The flowering and maturity period was not much affected. For the character height of main axis genotype showed differential response to different treatments of mu...

Peyronellaea arachidicola is the causal agent of peanut (Arachis hypogaea L.) web blotch. Here, we report an assembled draft genome sequence P. strain YY187 obtained from symptomatic leaf in China. The size 47.3 Mb, consisting 26 contigs (N 50 = 2.2 Mb) with G+C content 56.37%. This will provide a valuable foundation for further research on genetics and comparative genomics arachidicola.

Peanut (Arachis hypogaea L.) remains an important agronomic crop in Alabama, Florida, and Georgia. In recent years, the value of Alabama’s 190,000-acre peanut crop has exceeded $120 million annually. However, the diseases early leaf spot, late leaf spot, and southern stem rot may greatly reduce the profitability of Alabama’s peanut crop due to lower yields and poorer nut quality (7). Also, fung...