Page 29 - summer17
P. 29

The goal of all this work is to improve crop
           production, building on the strengths of ancient   Finding Fertile Ground
           genes to survive in stressful environments. The   Rod Wing  ||  Bud Antle Endowed Chair
           UA team is trying to pinpoint the regulatory
           mechanisms by which genes control features like
           the ability to cope with regional challenges such   or Rod Wing, joining the UA in 2002 meant giving up an endowed
           as soil composition, lack of water for irrigation   Fchair at Clemson University.
           and climate problems linked to global warming.     “That was a real risk. At Clemson I was a big fish in a small pond, but
           Hardy, efficient crops also offer environmental   I wanted to come here to surround myself with people who were better
           benefits, as they require fewer chemical         than me so I could get better myself,” says Wing.
           fertilizers to grow well.                          Working with UA faculty, especially founding director of BIO5 Vicki
              “By sequencing their genomes and then         Chandler, proved as rewarding as Wing hoped. In 2005, soon after leading
           mapping a gene back to the rice reference        the effort to produce the first complete genomic sequence of rice, he was
           genome, you can learn why it looks like this in   named the Bud Antle Endowed Chair within the UA’s School of Plant Sciences.
           this country, or like that in that region,” Wing   The Antle endowment helps Wing secure competitive grants by funding
           says. “We can say, ‘This is what we want for the   the collection of preliminary data and the purchase of genome sequencing
           ideal rice.’ But you might have the best quality   equipment. Wing estimates that since he’s been at the UA he’s been primary
           rice in the world and in Africa it won’t do well.
           So you take that killer rice and you cross in the   investigator or co-primary investigator on $80 million worth of grant-funded
           genes that are adapted to Africa, and you have   projects.
           this great tasting rice, high yielding, but it can   “The Antle family’s investment has absolutely allowed me to be more
           also survive in Africa.”                         successful than I could without it,” he says. “It provides flexibility and helps
              Wing, who was named a fellow of the           fill the gaps in grant funding. I’m grateful for their trust in me.”
           American Association for the Advancement of
           Science in 2010, distinguishes his work from
           GMOs, or genetically modified organisms, in   “What we are interested in,” Wing says, “is   ‘What we are
           which DNA has been altered with DNA of another   how to feed the world — without destroying our
           organism. “You say ‘GMO’ and many people are   world. Rice will play a big role, with a billion   interested in,’ Wing
           freaked out,” he says. “They do have a role to play,   people depending on rice in Asia, Southeast Asia
           a limited role. But we just are trying to study   and Africa. In Bangladesh, where growth is out of   says, ‘is how to
           natural variation and make better use of it. That’s   control.”
           quite different.”                           Wing quotes Norman Borlaug, who won a   feed the world —
              Some of the other samples that the team   Nobel Prize for developing high-yield cereal
           studies are common cultivated varieties, some   grains: “Food is the moral right of all who are   without destroying
           are wild. The wild rice holds some of the most   born into this world.” And yet, Wing observes,
           intriguing secrets. “These wild relatives contain   half the world goes hungry.     our world.’
           a virtually untapped reservoir of traits that can   Back in the campus greenhouse, Dave Kudrna,
           be used for crop improvement,” Wing says. The   one of the UA’s senior rice experts, bends to
           Arizona Genomics Institute, in collaboration with   examine one proud, tall shoot.
           other teams, has led the generation of 11 high-  “Look at this guy,” Kudrna says. “It’s more
           quality draft genomes for 10 wild rice relatives, as   upright. Look at the structure of that plant.”
           well as an independently domesticated rice from   Thinking about the need to feed the world’s
           Africa called Oryza glaberrima.          increasing population, he adds, “You think, ‘One
              The world’s population, currently about 7   of these lines could feed millions of people. One
           billion, is expected to reach 10 billion by 2050.   of these could be the answer we’re looking for.’
           More rice — which is the core of the diet for half   You are looking at the future.”
           the world — will be needed. That’s the heart of
           what Wing calls “the 10 billion people question.”
           As he traces his 20 years of work on high-yield
           rice, he turns philosophical.



                                                                                                             SUMMER 2017  27
   24   25   26   27   28   29   30   31   32   33   34