Global climate changes, extreme weather fluctuations, and industrial-agricultural pollutions exacerbate environmental issues, including drought, salinization, flooding, extreme temperature, heavy metals pollution, mineral deficiency, etc. These have posed a tremendous challenge for food security and ecosystem functions. By 2050, global food requirements are estimated to increase by 70–110% to feed a rapidly growing population. In these contexts, it is urgent to seek new methods to guarantee food security and environmental management. The genes and pathways involved in environmental adaption and yield traits would be the focus for breeding forage and ecological plant species, whose growth and production are economically and ecologically key to the sustainability of human society. Multiple efforts to identify the candidate genes and pathways are valuable, e.g., multiple omics, genome assembly, GWAS, genome selection, gene editing, gene mapping, molecular breeding, etc. The pathways should be reported to be related to specific traits, supported by shreds of evidence.
The goal of this Research Topic is to enrich our understanding of the roles of the candidate genes and pathways underlying environmental adaption and yield traits in forage and other ecologically important plants.
In this Research Topic, we encourage the submission of original research articles, reviews and mini-reviews, methods, and opinions, covering but not limited to the following subtopics:
• Characterization of genes and pathways in abiotic stress responses
• Genome assembly and gene family related to abiotic stress responses and yield
• Gene editing to improve abiotic stress tolerance and plant yield
• GWAS studies in forage and ecologically important plants
• Molecular breeding in a population by integrating high-throughput genotyping
Global climate changes, extreme weather fluctuations, and industrial-agricultural pollutions exacerbate environmental issues, including drought, salinization, flooding, extreme temperature, heavy metals pollution, mineral deficiency, etc. These have posed a tremendous challenge for food security and ecosystem functions. By 2050, global food requirements are estimated to increase by 70–110% to feed a rapidly growing population. In these contexts, it is urgent to seek new methods to guarantee food security and environmental management. The genes and pathways involved in environmental adaption and yield traits would be the focus for breeding forage and ecological plant species, whose growth and production are economically and ecologically key to the sustainability of human society. Multiple efforts to identify the candidate genes and pathways are valuable, e.g., multiple omics, genome assembly, GWAS, genome selection, gene editing, gene mapping, molecular breeding, etc. The pathways should be reported to be related to specific traits, supported by shreds of evidence.
The goal of this Research Topic is to enrich our understanding of the roles of the candidate genes and pathways underlying environmental adaption and yield traits in forage and other ecologically important plants.
In this Research Topic, we encourage the submission of origient, and collinearity."}],"journal":{"guid":373,"name":"Frontiers in Plant Science","link":null,"nessieId":"257698037760","palette":null,"publisher":null,"images":null,"isOnline":null,"isDeleted":null,"isDisabled":null,"issn":null},"link":"https://www.frontiersin.org/articles/10.3389/fpls.2023.1195479","pubDate":"2023-08-23","score":5.341357150637097,"title":"Chromosome-level reference genome assembly provides insights into the evolution of Pennisetum alopecuroides","topics":["Comparative genomics","de novo assembly","Forage grass","Whole-genome duplication","P. alopecuroides"],"pdfUrl":null},{"__typename":"Feed_Article","_id":"655506fb8f989e621889d6a2","abstract":"Medicago truncatula has been selected as one of the model legume species for gene functional studies. To elucidate the functions of the very large number of genes present in plant genomes, genetic mutant resources are very useful and necessary tools. Fast Neutron (FN) mutagenesis is effective in inducing deletion mutations in genomes of diverse species. Through this method, we have generated a large mutant resource in M. truncatula. This mutant resources have been used to screen for different mutant using a forward genetics methods. We have isolated and identified a large amount of symbiotic nitrogen fixation (SNF) deficiency mutants. Here, we describe the detail procedures that are being used to characterize symbiotic mutants in M. truncatula. In recent years, whole genome sequencing has been used to speed up and scale up the deletion identification in the mutant. Using this method, we have successfully isolated a SNF defective mutant FN007 and identified that it has a large segment deletion on chromosome 3. The causal deletion in the mutant was confirmed by tail PCR amplication and sequencing. Our results illustrate the utility of whole genome sequencing analysis in the characterization of FN induced deletion mutants for gene discovery and functional studies in the M. truncatula. It is expected to improve our understanding of molecular mechanisms underlying symbiotic nitrogen fixation in legume plants to a great extent.","htmlAbstract":"\u003cp\u003e\u003ci\u003eMedicago truncatula\u003c/i\u003e has been selected as one of the model legume species for gene functional studies. To elucidate the functions of the very large number of genes present in plant genomes, genetic mutant resources are very useful and necessary tools. Fast Neutron (FN) mutagenesis is effective in inducing deletion mutations in genomes of diverse species. Through this method, we have generated a large mutant resource in \u003ci\u003eM. truncatula\u003c/i\u003e. This mutant resources have been used to screen for different mutant using a forward genetics methods. We have isolated and identified a large amount of symbiotic nitrogen fixation (SNF) deficiency mutants. Here, we describe the detail procedures that are being used to characterize symbiotic mutants in \u003ci\u003eM. truncatula\u003c/i\u003e. In recent years, whole genome sequencing has been used to speed up and scale up the deletion identification in the mutant. Using this method, we have successfully isolated a SNF defective mutant FN007 and identified that it has a large segment deletion on chromosome 3. The causal deletion in the mutant was confirmed by tail PCR amplication and sequencing. Our results illustrate the utility of whole genome sequencing analysis in the characterization of FN induced deletion mutants for gene discovery and functional studies in the \u003ci\u003eM. truncatula\u003c/i\u003e. It is expected to improve our understanding of molecular mechanisms underlying symbiotic nitrogen fixation in legume plants to a great extent.\u003c/p\u003e","authors":[{"fullName":"Yitong Shen","firstName":null,"middleName":null,"lastName":null,"image":{"height":null,"url":"https://loop.frontiersin.org/images/profile/2345237/70","width":null,"caption":null},"loopProfileUrl":"https://loop.frontiersin.org/people/2345237/overview","affiliation":{"name":"Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations,"click" data-gtmaction="RT_SIDEBAR_SHARE_LINK">