Progress 01/01/24 to 12/31/24
Outputs Target Audience: Private-sector partners: Connected with private-sector breeders during the in-person sorghum seed tour (Innovative Seed Solutions, Richardson Seeds, Remington Seeds, Corteva, Warner, and S&W), Sorghum Improvement Conference of North America (SICNA) conference (140 attendees), Center for Sorghum Improvement (CSI) seminar series (55-70 attendees/month), and monthly sorghum molecular breeding meetings (20-30 attendees/month). Public-sector sorghum scientists: Based on the interest from the private sector, the STRAIT KIN team established connections with weed scientists, plant pathologists, entomologists, and public-sector breeders to deliver sorghum trait packages for the industry. The 2024 Seed Tour engaged researchers from Clemson University, Colorado State University, Texas Tech University, and USDA ARS. Early-career scientists: Monthly sorghum molecular breeding meetings emphasize that early-career researchers (graduate students and postdoctoral scholars) orient their research goals to accelerate trait discovery and trait dissemination to the sorghum industry. Farmer stakeholders: Regular reports and interactions with sorghum farmer leadership boards, including the United Sorghum Checkoff Board and the Board of Kansas Sorghum. ? Changes/Problems:
Nothing Reported
What opportunities for training and professional development has the project provided? PhD student on this grant involved in genomic characterization gained experience in analyzing genomic data, population genomics, and leveraging genomic data for marker development Development of trait packages by the STRAIT KIN team provided opportunities to learn trait mapping, marker development, and marker-assisted backcrossing to generate donor lines. The in-person seed tour provided an opportunity to understand the private-sector breeding targets, knowledge of the breeding and hybrid testing pipelines, and establish connections with the sorghum industry Coordinating between public- and private-sector programs provided the STRAIT KIN team members with training in leadership, interpersonal skills, and resource management How have the results been disseminated to communities of interest? In-person seed tour to connect with the public- and private-sector partners about STRAIT packages (genetic maps, markers, and donor lines), progress on genomic characterization of representative parental lines, and germplasm exchange for trait discovery and delivery The SorghumBase platform was used to inform the sorghum community of sorghum resources available for the community, e.g., the new reference genome BTx623 v5.1 and the sorghum pangenome Generated a 3-minute video on the state of sorghum chinch bug research to inform sorghum growers at the Sorghum Connection Flash and Dash segment of the winter series portion of the program Dr. Sarah Sexton-Bowser is leveraging established networks between sorghum public- and private-sector partners to continue the STRAIT KIN program outreach Developed a one-pager of the STRAIT KIN project to share with public and private seed industry researchers Poster presentation about the STRAIT KIN project at the Sorghum Improvement Conference of North America (SICNA) conference in Oklahoma City from April 2-4 Research presentations by sorghum researchers in monthly molecular breeding and CSI seminar series on sorghum traits Online meetings with the public- and private-sector breeders to share knowledge and research updates What do you plan to do during the next reporting period to accomplish the goals? In-person seed tour in September 2025 to continue networking between the public and seed industry partners Generate haplotype maps and determine the major genes fixed in the US sorghum breeding programs Develop a database of sorghum markers available at Intertek, a third-party genotyping service provider Test publicly available trait markers with public and seed industry partners germplasm in the Summer of 2025 Genomic analyses of representative parental lines from public and private breeding programs to identify germplasm with the trait of interest within breeding programs' populations via genomic and pedigree data Develop new trait markers (chinch bug resistance, anthracnose resistance, herbicide tolerance, and iron deficiency chlorosis) and test the marker's functionality in different public and private seed partners
Impacts What was accomplished under these goals?
Objective 1.1 Established material transfer agreements (MTA) in 2023/2024 with three private seed sector partners to enable the sharing of 40 elite parental lines from each private sector partner for genomic characterization using DArT sequencing. We are signing an MTA with one private seed sector partner to access their existing DArT sequencing data. Additionally, DArT sequencing of 48 sorghum ex-PVP lines and representative lines from four public breeding programs is in progress. Connecting private-sector STRAIT KIN partners with public-sector sorghum scientists at the 2024 Sorghum Improvement Conference of North Americameeting helped exchange knowledge of breeding product profiles important for the US sorghum growers. This networking highlighted the importance of trait mapping and marker-assisted breeding in public breeding programs. The US grain sorghum industry has been using the dw3-ref allele, a major dwarfing allele that produces undesirable revertants, for the past 60 years. Reverants generated by the dw3-ref allele increase hybrid seed production cost as the revertants must be culled before flowering. We developed a stable-dwarfing allele trait package for the sorghum community. Novel mechanisms of herbicide tolerance is a trait of interest for the sorghum seed industry. The STRAIT KIN team established a connection between a private seed industry partner and a weed scientist at Kansas State University, which resulted in obtaining a grant of $180,000 for 2 years from the Kansas State University Global Food Systems Institute. Brown midrib is a key trait in the breeding product profile for private-sector forage breeding programs. Two brown midrib markers tagging the bmr6-ref and bmr12-ref alleles, developed by Dr. Gloria Burow at USDA ARS Lubbock, were transferred to Intertek, and these markers were validated to determine their functioning at Intertek, a third-party genotyping service provider. These markers are now available for public and private forage breeding programs. Sorghum early-season chilling tolerance trait can potentially advance sorghum planting in temperate regions. We introgressed early-season chilling tolerance from chilling-adapted Chinese sorghums into US elite sorghum lines. We are coordinating with a private-sector partner to evaluate the early-season chilling tolerant lines.? Objective 1.2 Dr. Sarah Sexton-Bowser, a co-PI on the grant, organized an in-person sorghum seed industry tour in September 2024. Four participants, Dr. Alex Kena (Colorado State University), Dr. Carolina Ballen Taborda (Clemson University), Nneka Okreke (PhD student, Colorado State University), and Dr. Sarah Sexton-Bowser visited six private seed companies and two public sorghum breeding programs. Two Masters students were hired at Kansas State University to identify new modes of sorghum herbicide tolerance. Students will be trained in weed science, molecular breeding, and genetics. We are continuing our STRAIT KIN molecular breeding monthly seminars in 2024. Breeders and geneticists (20-30 sorghum researchers) from the public and private sectors attended this seminar series. STRAIT KIN team was invited to a private-sector partner's annual research meeting to share the status of publicly available sorghum traits packages. The STRAIT KIN team organizes frequent meetings with private-sector partners to identify traits important for the sorghum industry, track progress on trait discovery and marker development, and exchange germplasm for field trials and hybrid evaluations. Genomic characterization of 40 representative lines from each private-sector partner is fostering interactions between the STRAIT KIN team and the private-sector breeders to understand their germplasm, generate haplotype maps, and identify major genes fixed in their programs based on the genomic data. Generated a 3-minute video on the state of sorghum chinch bug research to inform growers at the Sorghum Connection Flash and Dash segment of the winter series portion of the program.? Objective 1.3 Co-PI Sexton-Bowser provides monthly updates to advisory board members Drs. Dooren Ware and Brent Bean. The third board member, Dr. Fonseca, has recently taken a different role in crop improvement and no longer works in the sorghum sector. The STRAIT KIN team conducts monthly meetings to track progress on trait discovery, marker development, genomic characterization, and trait delivery. The project provides regular reports to stakeholders, including the Kansas Grain Sorghum Board (July 2024) and the United Sorghum Checkoff Board (December 2024), and monthly calls with the USDA-administrated SorghumBase team. Objective 2.1. Haplotype maps generated with the genomic data of 40 representative parental lines from 9 breeding programs (5 private- and 4 public-sector partners). We are developing a sorghum marker database of publicly available markers at Intertek, a third-party genotyping service provider, with marker information, alleles in US elite lines, and allele frequency in the US germplasm. KASP markers available at Intertek will be tested by three public breeding programs and four private seed companies in the Summer of 2025. The protocol for generating test plates for each program is shared between private and public sector breeding programs. Objective 2.2. Transferred a new sorghum aphid resistance marker with improved marker-trait association to private-industry partners. As one private-sector partner has internal genotyping capabilities, we provided marker information (physical location, favorable vs. alternate alleles, and allele frequency in the US sorghums) to generate markers functioning with their genotyping platform. Stable-dwarfing donor lines, developed by introducing the stable-dwarfing allele from an exotic sorghum line into US elite lines using marker-assisted backcrossing, will be shared with private-sector partners to develop stable-dwarfing sorghum hybrids. Sorghum early-season chilling tolerance donor lines, generated by introgressing chilling tolerance loci from Chinese sorghums into US accessions using marker-assisted breeding, will be tested by a private-sector partner in their 2025 early-season planting trials. Genetic mapping of sorghum chinch bug resistance revealed a major locus controlling the resistance, and a preliminary KASP marker was created. Private- and public-sector partners are using sorghum aphid resistance (2 markers), grain tannins (5), plant height (4), flowering time (2), staygreen (3), waxy endosperm (2), and Striga tolerance (3) to identify the alleles fixed in their breeding programs and validate the marker functionality in different breeding programs. Objective 2.3. Genomic resources generated by the STRAIT KIN team, DArT sequencing data of representative lines of a breeding program and sorghum pangenome, are creating training opportunities between the STRAIT KIN team and public/private sector partners on utilization of genomic data for germplasm characterization, identify germplasm resources for desired alleles in their program, marker development, and accelerating trait delivery. Training public and private sector breeders on utilizing publicly available genomic resources (sorghum pangenome data) for pre-breeding and trait discovery can transform the innovation of sorghum trait packages. Objective 3.1. KASP genotyping of major genes fixed in US grain sorghums and generation of haplotype maps from DArT sequencing data of parental lines are in progress. Objective 3.2. Principal component analysis (PCA) and Neighbor-joining (NJ) tree with DArT sequencing data from the public- and private-sector breeding lines has enabeledus to identify population structure and haplotype relationships between public and private sector sorghums. Development of haplotype maps using the DArT sequencing data. Objective 3.3. No progress is made on this objective.
Publications
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Progress 01/01/23 to 12/31/23
Outputs Target Audience:Have established relationships with commercial sorghum breeding companies, with sorghum seed production companies, with public sorghum breeding programs, and public sorghum researchers. Graduate students have also been on seed tour for learning experiences. Changes/Problems:
Nothing Reported
What opportunities for training and professional development has the project provided? Sorghum seed tour provided an opportunity to understand the private seed sector and identify networks to improve collaborations. Interactions with sorghum public breeding programs provided knowledge of traits of interest for different sorghum-growing regions of the US. E.g., disease resistance for the southern US and early-season chilling tolerance for the mid-west sorghum breeding programs. PhD student in this research was provided with opportunities to learn genomic analyses and marker development for trait improvement. How have the results been disseminated to communities of interest? Disseminated about the STRAIT KIN project using the SorghumBase, a web-based portal for sorghum genetic information and community advancement https://www.sorghumbase.org/post/strait-kin-a-collaborative-innovation-network-for-sorghum-traits-has-been-awarded-a-1-million-grant-by-the-usda We are working with SorghumBase to publish newsletters to promote new trait markers available for the public and private seed sectors. E.g., publish waxy markers developed by Dr. Yinping Jiao's lab and currently available at Intertek. Sarah Sexton-Bowser, Director Center for Sorghum Improvement at Kansas State University, is leveraging established networks between sorghum public and private industry partners to increase the STRAIT KIN program outreach. Webinar by Dr. Terry Felderhoff on the STRAIT KIN program in the CSI Seminar Series. Developed a one-pager of the STRAIT KIN project to share with public and private seed industry researchers. Poster on STRAIT KIN project at the Sorghum Improvement Conference of North America (SICNA) conference in Oklahoma City from April 2-4. What do you plan to do during the next reporting period to accomplish the goals? Test publicly available trait markers with public and seed industry partners germplasm. Genomic analyses of representative parental lines from public and private breeding programs to identify germplasm with the trait of interest within breeding programs' populations via genomic and pedigree data. Second seed tour in September 2024 to establish networks between the public and seed industry partners. Develop new trait markers and test the marker's functionality in different public and private seed partners.
Impacts What was accomplished under these goals?
Objective 1, Connect: Connect a community that spans the public-private research paradigm with active contribution, trust and engagement. Sub-objective 1.1 Enable public innovation with leverage of private research operations. Developed new sorghum aphid resistance markers using QTL mapped by Dr. Geoffrey Morris (Colorado State University) and Dr. Gael Pressoir (Haiti sorghum breeding program). We evaluated these new markers on sorghum lines from two private sorghum breeding companies (S&W and ISS germplasm). Markers for waxy grain (low amylose content) developed by Dr. Yinping Jiao's laboratory at Texas Tech University were tested on the USDA Lubbock waxy germplasm to test their predictability in diverse germplasm at Intertek, a third-party genotyping laboratory. After validating the markers in an independent program, we added the markers to the STRAIT KIN program markers for use by the public and private seed sectors. Evaluated new and previous sorghum aphid resistance markers with parental lines from a Kansas-based private seed company (Ohlde Seeds). Sub-objective 1.2 Build public-private capacity with workforce development and community building. Sorghum seed tour in September 2023. Four participants, Dr. Terry Felderhoff (Kansas State University Sorghum Molecular Breeder), Dr. Sandeep Marla (Project Manager STRAIT KIN, Kansas State University), Sarah Sexton-Bowser (Director, Center for Sorghum Improvement), and Gina Cerimele (PhD student, Colorado State University), visited six private seed companies and three public sorghum breeding programs. During this seed tour, we established connections with public and private seed industry partners for efficient trait transfer from public sorghum breeding programs to private seed industry and commercial growers. Additionally, we proposed public marker testing by private seed industries and genomic characterization of private seed sector parental lines to improve marker/trait predictability by public research programs. Dr. Terry Felderhoff, PI on the STRAIT KIN (CIN) project, was the feature Center for Sorghum Improvement (CSI) seminar speaker for 2024. This seminar was attended by ~90 sorghum public and private sector researchers. Sorghum molecular breeding seminars are conducted each month. Breeders and geneticists (~30-40 sorghum researchers) from public and private sorghum seed industry partners join this seminar series. Sub-objective 1.3 Establish a network advisory to inform and guide community research priorities. STRAIT KIN launch webinar was presented by Dr. Terry Felderhoff in the CSI Seminar Series. STRAIT KIN team received emails from different public research programs to join and contribute to marker development and transfer improved traits to the private sector. Established STRAIT KIN 2023-2024 work plan to a) test publicly developed and validated markers in partner seed company programs, and 2) characterize genomic resources of sorghum industry partners. Established material transfer agreement (MTA) document for operations between Kansas State University and public/private sorghum partners. Objective 2, Catalyze. Catalyze the public and private sorghum research capacities to accelerate trait delivery synergistically. Sub-objective 2.1. Test public markers and identified traits in private seed companies' programs. Testing public markers with three public breeding programs and four private seed companies' parental lines will be conducted in the Summer of 2024. Established a protocol for genomic characterization and marker testing at Intertek shared with our public and private sector partners. Sub-objective 2.2. Transfer trait technologies via markers and donors to commercial seed companies. Transferred new sorghum aphid resistance markers to a private seed industry partner (ISS). We are introgressing a stable dwarfing allele into US elite germplasm, using marker-assisted backcrossing, for sharing these lines with our industry partners. Objective 3, Characterize. Characterize genomic resources and develop methods that optimize the collaboration between public discovery and private deployment of innovation. We have established work plans and MTA for conducting genomic characterization of public and private sector sorghum germplasm. We will conduct genomic characterization in the Summer of 2024.
Publications
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