, AGAP, vol.3
, Pilet@rennes.inra.fr)
, Common root rot, due to Aphanomyces euteiches, is a very damaging disease of legumes, especially pea, vol.15, pp.15-15
,
, The present study was aimed at biochemical and molecular characterization of two lpa pea lines, 1-150-81, 1-2347-144, and their progenitor CDC Bronco. The lpa lines did not significantly differ from CDC Bronco in the agronomic traits assessed except for lower grain yield. No inositol polyphosphates (IP1, IP3, IP4, IP5) other than phytic acid were detected in cotyledons of CDC Bronco and the lpa lines at different seed developmental stages analyzed through HPLC. Total phosphorus concentration was similar in lpa lines and CDC Bronco throughout seed development. To understand the genetic basis of the lpa mutation in pea, a 1530 bp open reading frame of myo-inositol phosphate synthase (MIPS) (EC 5.5.1.4) was amplified from CDC Bronco and the lpa lines. Sequencing results showed no difference in coding sequence in MIPS between CDC Bronco and lpa lines. Transcription levels of both MIPS and myo-inositol pentakisphosphate 2-kinase (IPK1) were relatively lower at 49 DAF than at 14 DAF for CDC Bronco and lpa lines. Recombinant inbred lines (RILs) developed from a cross between 1-2347-144 and CDC Meadow were evaluated in replicated field trials in Saskatchewan, Seeds of low phytic acid (lpa) pea lines are low in phytic acid (IP6) and high in inorganic phosphorus (Pi), 2011.
, , 2014.
, Nitrogen Fixation, Plant Nutrition and Legume Mega Project ICLGG Legume Mega Projects Chair: Jens Stougaard
, Drabo, I. 3 , Tignegre de la Salle, JB. 3 , Atokple, I. 4 , Kusi, F. 4 , and Boukar, Ousmane. 5 . 1 University of California, vol.2
, ) in the Sudano-Sahelian region, which is the main production zone for cowpea. The areas of emphasis for variety improvement are resistance to the droughtpredisposed fungal pathogen Macrophomina phaseolina, drought tolerance at critical stages (early seedling, flowering, terminal) and heat tolerance during reproductive development. There are three basic objectives: 1) Foundation Development, 2) Training and 3) Implementation. Foundation Development includes the improvement of genotyping capabilities, USAID Feed the Future Innovation Lab for Climate Resilient Cowpea" began, vol.60, p.0, 2013.
, BeadAssay iSelect for SNP genotyping and its implementation to produce a higher density genetic map and baseline genetic knowledge about the breeding materials in each West African program. Drought tolerance of these same materials will be assessed in year 1 in sandbox assays to provide new baseline phenotypic data, supporting genotype-phenotype associations. A MAGIC population and diverse germplasm are also elements of this project. Training and implementation activities will occur through the life of the project, vol.11
, Taking a walk on the wild side: prospecting for climate resilience and nitrogen fixation traits in the wild progenitors of cultivated chickpea
, Abdulkadir Aydogan, vol.4
, Field Crops Research
, Loss of adaptive alleles, fixation of deleterious alleles, and low genetic diversity in cultivated species constrains our ability to expand their cultivation into more extreme climates, marginal soils, or to situations with reduced agricultural inputs. We are addressing this need in chickpea, the world's second most important pulse legume, by harnessing the capacity of wild relatives to survive in harsh environments, Crops are impacted in unintended, often negative ways during their domestication and breeding
, Hawassa University, School of Plant and Horticultural Sciences, International Livestock Research Institute (ILRI), vol.5689, pp.15-27
, Genotypic variation in the response of chickpea to arbuscular mycorrhiza and fungal endophytes
, 2,3 . 1 Department of Soil Science, vol.3
, Mexico) MicroRNAs from common bean (Phaseolus vulgaris) in the rhizobia symbiosis and in the response to abiotic stress, Chickpea roots form symbioses with arbuscular mycorrhizal (AM) fungi and non-AM fungal endophytes, vol.11, pp.30-41
, ); 2 Facultad de Estudios Superiores-Iztacala, UNAM; 3 Instituto de Biotecnología, UNAM. *(gina@ccg.unam.mx) Common bean (Phaseolus vulgaris) is the most important grain legume for human consumption; it establishes N-fixing symbiosis (SNF) with rhizobia. Plant microRNAs (miRNAs) (21-22 nt non-coding RNAs) are key post-transcriptional regulators of different processes
, We are mapping these miRNAs in the Phaseolus genome (www.phytozome.net, v.1.0) and predicting novel MiRNA genes
, Al-t) is widespread in acidic soils where the common bean is produced and it is a limiting factor for crop production and for SNF. We have identified some 30 miRNAs that respond to Al-t in roots and nodules of SNF bean plants and have performed target gene expression analysis, Aluminum toxicity
, The regulation of copper homeostasis and biotic interactions by miR398b has been demonstrated. The two validated miR398b target genes: CSD and novel Nod19 are up-regulated, while miR398b is down-regulated, under oxidative stress resulting from Cu toxicity, early interaction with rhizobia or infection of pathogenic fungi, vol.11, pp.50-62, 2014.
, The Rhizobial Infectome: Uncovering the Genes that Control the Early Steps of the Legume-Rhizobia Interaction
, NCI Leidos Biomedical Research, Inc, vol.2, p.31326
, *(jeremy.murray@jic.ac.uk)
, Sinorhizobium meliloti infects its host Medicago truncatula through root hairs which is essential for the