字幕表 動画を再生する 英語字幕をプリント This was the biggest apple launch of all time. The new iPhone 11 is simply amazing. Hold on. No, not that kind of apple. This kind of apple. This is a new variety of apple. The Cosmic Crisp. It's the largest launch of a single variety ever. It's the child of the blockbuster Honeycrisp apple and the Enterprise apple. In the U.S., apples are a five billion dollar a year industry. There are more than 7,500 varieties of apples grown across the world in 2,500 of those are grown in the U.S. like the Pink Lady, the Granny Smith, Golden Delicious, the Honeycrisp and America's favorite, the Gala, which just beat out the Red Delicious variety for the first time ever. Red Delicious had reigned more than half a century before the Gala apple dethroned it. And yet, scientists are still developing new varieties. Actually, it's not just apples. There are plant breeders, horticulturalists and scientists around the world working to perfect and reinvent the food everyone knows. Whether it be apples or berries, mushrooms or crops like rice and wheat. And this innovation isn't just the controversial GMO kind. That's short for genetically modified organism. In fact, crops have been cross-bred to produce new varieties for hundreds of years. Plants naturally cross-pollinate, which produces new varieties. Here in the U.S. are breeding programs like the one at Washington State University that is responsible for the more than 20 years of work it took to create and grow the Cosmic Crisp apple through natural means. Here's how we invent new foods like the Cosmic Crisp. The first masters of biotechnology date back to more than 12,000 years ago to the Neolithic period of the Stone Age, where the adoption of farming and agriculture first began to develop. It was then that humans isolated elite selections of crops and mass planted them to domesticate certain crops, and this happened independently in different regions all over the world with all sorts of plants. But the modern apple we know today can be traced back to Kazakhstan during the Bronze Age and to bear droppings. For millions of years, bears chose to eat the larger, sweet variety over the smaller, bitter apples. Then through bear droppings that contain those apple seeds, a process called germination, more fruit trees grew to grow that larger sweet apple we know today. By the first millennium BCE, apples had become part of Western agriculture. The ancient way of doing it was simply planting seeds and you'd get variation. Fast forward a few thousand years to colonial America in the late 1700s, nearly 100 years after the apple was imported by immigrants, pioneers were encouraged to plant apples. In 1806, Jonathon Chapman, well, you might know him as Johnny Appleseed, distributed apple seeds from western Pennsylvania to West Virginia. And this helped America's apple crop flourish in new parts of the country. When an apple seed is planted, it doesn't just grow into the same variety of apple of the seed it was grown from. It entirely depends on pollination. Each plant inherits half of its DNA from the tree the apple came from and half from the tree the pollen came from. So when new apple seeds were planted throughout the country, being pollinated by who knows what, thousands of new varieties hit the market. If you planted a seed from a Cosmic Crisp apple, you wouldn't get a Cosmic Crisp tree. You would get a tree that was, had inherited 50 percent of its genes from Cosmic Crisp, but fifty percent from whatever pollen parent had actually pollenize the flower that then made that fruit. In 1905, f ruit growers evaluated 100,000 clones from literally hundreds of thousands of apple selections. In this screening of the open pollinated chance seedlings resulted in varieties we still see today, like the Red Delicious, Golden Delicious and the McIntosh. This starts with understanding that the tree you see in an orchard is a composite tree made up from two parts, the rootstock and the scion. That means it's made up of two different varieties. It has the top part that has the fruit. That's the scion variety. And then the bottom part is the rootstock. You can have, for example, a rootstock that makes a huge big tree and whatever scion variety you would bud or graft on top of that, it will grow into a really big tree. Grafting is a process where plant material from one variety is fused to another and then together the plant grows. And this technique dates back thousands of years too. It's even mentioned in the bible. Grafting, you'll take a bit of scion stick. Okay, technical term, but it's got several buds on it. You'll cut the bottom perhaps into a V and you'll cut a similar kind of shape on top of the rootstock chute. You literally can just push the two together, bind them, so that they hold. And then the vascular tissues will fuse, and that means that you get this new tree growing up out of the grafted wood. This technique is also known as clonal propagation. That's when scientists make identical genetic copies of a plant. The Cosmic Crisp was made by classical breeding, which is also known as hybridization. Evans is part of the breeding program at Washington State University that developed the Cosmic Crisp. Fundamentally, you're taking pollen from one of the apple trees in our case and then using that pollen to pollenize flowers of the other parent. Simple process. It's just controlled pollination, so it's using a process that's happening out there all the time with bees or other visiting insects. But the pollen that's used on to the flowers is random. With ours, we're using this pollen from a specific male parent that we've chosen to give us that greater potential of having offspring with the characteristics that we're looking for. From their plant breeders germinate and evaluate thousands of seeds that came out of the hybridization process. One of the Cosmic Crisp's parents is the Honeycrisp apple. Honeycrisp has got this ultra-crisp texture that really hadn't been seen very much until Honeycrisp hit the market. And for some reason, Honeycrisp caught the fancy of America and it changed the whole apple industry because they found out that people liked it so much they'd pay two times a Honeycrisp than for regular apples. The other parent apple is an Enterprise, and if you haven't heard of that one, it's because it's mainly grown and sold in Indiana. This is Jules Janick. He's a horticulturalist and professor at Purdue University in Indiana. You can probably call him the grandfather of the Enterprise apple. We developed the Enterprise apple. Kate Evans made many crosses and one of the crosses she made was crossing Enterprise, which is a big, red apple, attractive, scab-resistant to Honeycrisp. As breeders make crosses, each genetic mashup between two parents generates a unique offspring every time. It's kind of like how siblings share DNA from the same two parents, but have different characteristics. And that's because you've inherited that maternal and paternal DNA. But it segregates, it all mixes up. So what we're using is breeders were using that technique to get that mixing up off of genes to then enable us to be able to choose the best individual. The process of identifying a great variety of apple takes years. It takes two or three years to really grow a tree. So they keep replanting it and testing it to make sure it's as good as they think it is. The Washington State University breeders were looking for an apple that would appeal to both consumers and to growers. So, for example, when it came to ultimately choosing the variety that became the Cosmic Crisp, its tastiness and storability were at the forefront. It's slow to brown, so you throw your lemon trick out the window. It's just so natural slow to brown. To test this, we left out two apples overnight and here's what they looked like after 16 hours. A lot of people ask us all must be a Frankenstein apple or is it GMO, and no, it's not. A GMO is a genetically modified organism. It's a plant or animal that has been altered by genetic engineering, which is a manipulation of an organism's genes by either introducing, eliminating or rearranging specific genes using methods of modern molecular biology, or at least that's how it's thought of in countries like the United States. Technically, something that has been genetically modified can be done through traditional methods too, like selective breeding. However, the GMO technology that's often referred to today originated in 1973. Scientist Herbert Boyer and Stanley Cohen engineered the first successful organism by cutting out a gene from one organism and pasting it into another. This technique is known as gene transfer. However, the first food genetic modification tests were in 1987, and from years of testing later, Calgene's Flavr Savr tomato hit shelves as the first food crop to be approved for commercial production by the U.S. Department of Agriculture. The tomato stays riper longer than the non-engineered variety, and they say it's tastier. These tomatoes were modified to be firmer, thus extending the shelf life. And now that the FDA has pronounced them safe, they'll be shipped.. But getting consumers on board with a crop that had new genes proved difficult. Still, just the thought of juggling tomato genes in a lab scares some people. When the Flavr Savr first hit the market in 1994, d emand was high, but by 1998, sales sharply dropped off as public perception changed and the Flavr Savr tomato was never profitable because of high production and distribution costs. According to The Non-GMO Project, there's no scientific consensus on the safety of GMO. Even Chipotle has indicated on their menus that their food is non-GMO, as part of their "food with integrity" mission. And they were the first restaurant chain to do so in 2013. But those in favor of the technology say it allows scientists to make food more aesthetically pleasing, easier to cultivate, and even can make food more nutritious. Unfortunately, people are afraid of GMO. People are afraid. It's just a fear that some crazy gene and they don't want any in their mouth that has been controlled by genetics. It's an irrational fear and I might say grafting at the same thing in the 19th century, people were afraid of grafting, they though it wasn't natural. So the question is, what's natural and what's unnatural. New innovations now allow scientists to edit genomes, a living organism's entire genetic code. Then there's CRISPR-Cas9, which is short for clustered regularly interspersed short palindromic repeats. The way it works is kind of like having a document on a computer and using the find tool to locate a specific word and then adjust that word. CRISPR enables you to change some of those sequences to mimic many other natural variations. So in a fruit or vegetable with conventional breeding, you know, you have a mother and a father and the children are always a combination, but what happens if you could actually just change one of the traits and not have to go through all the changing of everything? CRISPR has seen its ethical challenges, particularly when it's used in human science. In November 2018, a Chinese scientist said that he used the gene editing technology on twin girls to protect them from getting infected with the AIDS virus. CRISPR was used on embryos, disabling a particular gene that allows HIV to enter a cell. But the approach restricted in the U.S. and much of Europe drew an international outcry. China sentenced him to three years in prison. Scientists are using CRISPR on the food we eat, like to keep mushrooms from browning or to make oranges resistant to the greening disease that is killing citrus plants around the world. One startup, Pairwise, is currently using CRISPR to grow cherries without a pit and to extend their growing season. These natural breeding process take a long, long time. The one example I can give is think about seedless grapes. That's a natural genetic variation. Well, we're working on using that same information to derived from those grapes and create a cherry without a pit. What pairwise is doing is essentially speeding up what they say would happen naturally anyway. It would just take years to happen in the wild. And it's generally mimicking something that's already been naturally done. We're only working on things that could be done through breeding, but could be much faster. Apples are 2.5 billion dollar a year business in Washington, which grows about 60 percent of the nation's supply or nearly 140 million boxes. But these growers can't just grow any ol' apple. Turns out, many apples have patents. New varieties are trademarked, patented and marketed like any other brand. Some of these apples are club apples. Growers are paying somewhere around sixty three thousand dollars an acre to plant a branded variety. Any branded of variety, any apple. Owning the intellectual property rights to a certain kind of apple started in the mid 20th century when the first varieties were patented as a way to compensate growers who spent time and money to develop them. Most breeders would patent their apple varieties in the U.S. The Cosmic Crisp is a new club apple, and it's managed by Proprietary Variety Management, where Grandy is the director of marketing. We are trademarked in probably over a hundred countries and we have a few partners internationally so that they can protect the trademarks. And so the patent for this particular apple is under its name, W-A 38. Washington State University owns that patent. Washington State has a 10-year exclusive deal to grow the Cosmic Crisp, and that's because the University of Washington collaborated with growers in the state. Growers then have a license to produce the WA-38 trees, and then that license enables them to sell their fruit under the Cosmic Crisp brand. The license actually comes through when they purchase the trees through the nursery. Most growers will still purchase trees, so the nursery will produce finished trees. For growers, it can be a huge investment to take on growing a new variety. For a grower to make that investment, t hey've got to be fairly confident that it's the direction they want to go in. Why the growers do it? Growers do it because fundamentally they're in business. Some argue that the future of plant breeding lies in CRISPR technology. CRISPR technology, gene-editing, is something that we use to change an individual gene and that is the plant breeding of the future. Baker says growers have a reason to stay excited. Growers are generally excited about any technology that helps make farming easier. Just like consumers are generally excited about anything that makes healthy food easier. We're working on making fruits and vegetables more convenient, more available and more affordable. Regardless of whether the fruit was modified in a lab or hybridized in a breeding program, many say there is space in the produce section for new products. And new produce means higher price tags and higher price tags can mean a better profit for growers. Growers obviously are interested in growing a new product where they hope to be able to get a better return on their investment.
B1 中級 コズミッククリスプがアメリカの人気リンゴに挑む方法 (How The Cosmic Crisp Is Taking On America’s Favorite Apples) 8 0 林宜悉 に公開 2021 年 01 月 14 日 シェア シェア 保存 報告 動画の中の単語