Page 13 - AWA Vol.36-No.5
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SEEDS


        pore of an Oxford Nanopore sequencer,
        the device will generate a series of nuc-  S&W SEED COMPANY AND ADAMA FINAL-
        leotides. A powerful computer compares
        the generated series with information   IZE COLLABORATION TO PROVIDE THE FIRST
        about the regions the researcher is inter-
        that the fragment is not part of one of the  FULL-SPECTRUM GRASS WEED CONTROL OP-
        ested in. When the computer concludes
        desired regions,  the pore will  receive
        the signal to push out the DNA fragment        TION FOR SORGHUM MARKET
        before fully sequencing it. The pore will
        then be available again for the next DNA   S&W Seed Company, a global agricul-  grass  weed control.  The collaboration
        fragment in the sample.             tural company with a leading position in   agreement has an initial ten-year dura-
          This all happens in just a fraction of a   sorghum through its Sorghum Partners®   tion.
        second and requires a real-time compar-  brand, and  ADAMA, one  of  the world’s
        ison between the sequence of the DNA   leading crop protection companies, an-
        fragments running through all 512 pores   nounced they have entered into a collab-
        in the sequencer, and all sequences  of   oration agreement to bring to market a
        selected regions of interest in the plants’   new weed management system for sor-
        DNA.                                ghum growers. This novel solution, to be
                                            marketed as DoubleTeam™, will consist
                                            of  S&W’s  non-GMO,  herbicide-tolerant
                                            sorghum hybrids, and ADAMA’s best-in-
                                            class herbicides. The system is designed
                                            to significantly improve weed control
                                            and grower profitability in sorghum.
                                              The  Double-team™ system is ex-    The market  for the DoubleTeam™
                                            pected to launch in the United States in   system will  be in the U.S.  initially,  with
                                            Spring 2021, subject to receipt of regula-  possible expansion into Southern Hemi-
                                            tory approvals. Upon commercialization,   sphere markets in the coming years. The
          Recent  research showed that it is in-  this new system is expected to be the   U.S. Department of Agriculture projects
        deed  possible  to selectively sequence   most reliable,  full-spectrum over-the-  that  U.S.  grain sorghum production for
        regions of human DNA. Plant DNA has its   top grass weed control solution for the   2019-2020 will cover 6 million acres an-
        own difficulties, such as a large amount   sorghum market. Initially, the new Dou-  nually with strong exports for the grain.
        of repetitive DNA: DNA where the same   bleTeam™ herbicide-tolerant sorghum   Based on market analysis and manage-
        pattern of nucleotides is repeated over   hybrids will be  available  exclusively   ment’s evaluation  of weed control sys-
        and over again.                     through S&W’s U.S. retail dealer network.   tems in comparable crops, the launch of
          That is why KeyGene scientists    S&W plans to license this herbicide tol-  the DoubleTeam™ system is expected to
        wondered whether  they would be able   erance technology to other key sorghum   create significant opportunities for both
        to do the trick with plant DNA.  They   seed companies in the future.  S&W and ADAMA to expand the market
        chose  to use the genome  of melon, of                                 value and market share.
        which they already knew a lot.  They                                     “Currently there are limited herbicide
        loaded the DNA sequence of 800 regions                                 technologies  available on the market
        in the melon DNA they wanted to be se-                                 for sorghum farmers to combat difficult,
        lectively sequenced. So the  computer                                  unwanted grasses, such as Johnsongrass
        needed to continuously compare all 512                                 and field sandbur, leaving farmers with
        DNA fragments in the pores of the se-                                  the options  of either  accepting lower
        quencing machine with the 800 regions                                  yields or completely abandoning  their
        of melon DNA stored in the memory of                                   fields,” said S&W Sorghum Product Man-
        the computer.                         S&W’s CEO Mark Wong,  commented,   ager Dr. Scott Staggenborg. “The  Dou-
        Eight times better                  “The DoubleTeam™ system has the po-  bleTeam™ system helps control these
                                                                               troublesome grasses giving growers the
                                            tential to revolutionize the sorghum mar-
          The team was indeed  able to better   ket in the same way other weed control   best opportunity to maximize yield even
        use the sequencing capacity of the DNA   technologies  have enhanced  yields for   in fields where grassy weeds have his-
        sequencer  for the regions of interest.   crops  such  as corn, soybeans, and cot-  torically limited the sorghum crop’s po-
        They were able to make an eightfold ‘en-  ton. For decades, sorghum farmers have   tential.”
        richment’.                          had very few options  to control grassy   ADAMA also has a collaboration agree-
          The success will make it easier and   weeds, which has resulted in decreased   ment in place with a technology-based
                                            yields and profitability. We are excited to
        less time consuming when one wants to   offer our farmer customers a novel, non-  rice company. Jake Brodsgaard, U.S.
        compare important DNA regions among   GMO based solution that has the poten-  Chief Executive Officer of ADAMA, com-
        different genotypes of plants. Sequen-  tial to significantly increase crop perfor-  mented,  “We already introduced the
        cing  expert  Alexander  Wittenberg:   mance and their bottom line.”   FullPage Rice Cropping Solution and are
        ‘‘Read Until is a fantastic application that                           working to develop and market the Max-
        requires no specific sample preparation,   In the DoubleTeam™ system, S&W will   Ace™ Rice Cropping Solution, which
        opens new possibilities in crop innova-  initially provide high-performance grain   integrates ACCase-tolerant rice and AD-
        tion research and reduces costs.”   sorghum  hybrids carrying its new her-  AMA’s ACCase herbicide, HighCard™.
          Graph:  The  800 desired regions  of   bicide tolerance trait technology devel-  This experience in the development  of
        melon DNA were much more often se-  oped using its  advanced research and   novel herbicide-tolerant  systems will
        quenced when using the Read Until tool   development platform. S&W is develop-  help  to  enhance  teamwork  with  S&W
        (green dots) compared to a non-select-  ing and expects a future launch of, Dou-  and successfully develop and launch the
        ive sequencing (purple dots)        bleTeam™ silage and  forage sorghum   DoubleTeam™ ACCase herbicide-toler-
                                                                               ant system in sorghum.”
                                            hybrids. ADAMA  will provide  best-in-
        Alexander H.J. Wittenberg           class herbicides and novel formulations
        Scientist Next Generation Sequencing  that deliver effectively, broad-spectrum              Circle 13 on enquiry card
                             Circle 12 on enquiry card
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