Project description:Lentils (Lens culinaris) are produced in diverse agroecological regions and are consumed as one of the most important food legumes at world-wide. Lentils possess a nutritional profile from a human health perspective that is not only nutrient-dense but also offers a better balance between protein and carbohydrates. However, lentil causes food allergy which has been a significant concern due to increased consumption in parts of the world. Len c3, a none-specific Lipid Transfer Protein (LTP), was identified as one of the allergens in lentil seeds. In this study, we firstly identified the Len c3 encoding gene LcLTP3b via peptide sequence blasting. We then focused on screening natural variations to search for lentil germplasms that harbors natural mutated allergen-encoding genes. A natural variation 11 was identified with mutations at LcLTP3b and low accumulation of vicilin through genomic-assisted approaches. Furthermore, we generated a pool of lentil germplasms with Len c3-free background through crossing the identified natural variation 11 with two lentil cultivars, CDC Redmoon and CDC Gold. These Len c3-free lentil germplasms can be used as a breeding resource targeting at reducing allergen risk in lentil consumption.
Project description:We present an atlas of global gene expression covering embryo and seed coat development in lentil, providing insights into the evolution of gene expression in embryogenesis of lentil species.
Project description:Chickpea and lentil are two important pulse crops used for human consumption as sources of vegetable protein, rich in amino acids and bioactive compounds. The search for elite cultivars with better architecture has been a demand by farmers of these two crops, which aims to systematize their mechanized planting and harvesting on a large scale. Therefore, the identification of genes associated with the regulation of the branching and architecture of these plants has currently gained great importance. This work aimed to gain insight into transcriptomic changes of two contrasting chickpea and lentil cultivars in terms of branching pattern (little versus highly branched cultivars). In addition, we aimed to identify candidate genes involved in the regulation of shoot branching that could be used as future targets for molecular breeding. The axillary and apical buds of chickpea cultivars Blanco lechoso and FLIP07-318C, and lentil cultivars Castellana and Campisi, considered as little and highly branched, respectively, were harvested.
Project description:Drought stress is one of the main environmental factors that affects growth and productivity of crop plants, including lentil. To gain insights into the genome-wide transcriptional regulation in lentil root and leaf under short- and long-term drought conditions, we performed RNA-seq on a drought-sensitive lentil cultivar (Lens culinaris Medik. cv. Sultan). After establishing drought conditions, lentil samples were subjected to de novo RNA-seq-based transcriptome analysis. The 207,076 gene transcripts were successfully constructed by de novo assembly from the sequences obtained from root, leaf, and stems. Differentially expressed gene (DEG) analysis on these transcripts indicated that period of drought stress had a greater impact on the transcriptional regulation in lentil root. The numbers of DEGs were 2915 under short-term drought stress while the numbers of DEGs were increased to 18,327 under long-term drought stress condition in the root. Further, Gene Ontology analysis revealed that the following biological processes were differentially regulated in response to long-term drought stress: protein phosphorylation, embryo development seed dormancy, DNA replication, and maintenance of root meristem identity. Additionally, DEGs, which play a role in circadian rhythm and photoreception, were downregulated suggesting that drought stress has a negative effect on the internal oscillators which may have detrimental consequences on plant growth and survival. Collectively, this study provides a detailed comparative transcriptome response of drought-sensitive lentil strain under short- and long-term drought conditions in root and leaf. Our finding suggests that not only the regulation of genes in leaves is important but also genes regulated in roots are important and need to be considered for improving drought tolerance in lentil.
Project description:We have determined the profile of plant-derived NCR peptides present in endosymbiotic cells (bacteroids) induced by R. leguminosarum bv viciae strain UPM791 in nodules from two different hosts (pea and lentil).
2020-11-27 | PXD020634 | Pride
Project description:Lentil Trichoderma and Aphanomyces interactions
