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Hybrid Rice Engineered With CRISPR Can Clone Its Seeds
A gene editing technique has been used to produce asexual rice, which could carry traits such as high yields and drought resistance. From a report:
After more than 20 years of theorizing about it, scientists have tweaked a hybrid variety of rice so that some of the plants produce cloned seeds. No plant sex necessary. The feat, described earlier this month in Nature, is encouraging for efforts to feed an increasingly crowded world. Crossing two good varieties of grain can make one fabulous one, combining the best versions of genes to give crops desirable traits such as higher yields. But such hybrid grain marvels often don't pass along those coveted genetic qualities to all seeds during reproduction. So farmers who want consistently higher yields have to pay for new hybrid seeds every year.
This new lab version of hybrid rice would preserve those qualities through self-cloning, says study coauthor Venkatesan Sundaresan, a plant geneticist at the University of California, Davis. Though 400 kinds of plants, including some blackberries and citruses, have developed self-cloning seeds naturally, re-creating those pathways in crop plants has "been harder than anyone expected," Sundaresan says. He and his colleagues got the idea for the new research while studying "how a fertilized egg becomes a zygote, this magical cell that regenerates an entire organism," as Sundaresan puts it. The researchers discovered that modifying two sets of genes caused the japonica rice hybrid called Kitaake to clone its own seeds. First the team found that in a fertilized plant egg, only the male version of a gene called BABY BOOM1 found in sperm triggered the development of a seed embryo. So the scientists inserted a genetic starter switch, called a promoter, that let the female version of the same gene do the same job. No male would be necessary to trigger an embryo's development. |
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| There are no conversations. |
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| cauz |
Dec. 29, 2018, 4:32 p.m. |
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| Zaha Hadid |
For many years, I hated nature. As a student, I refused to put a plant anywhere - a living plant, that is. Dead plants were OK. |
| John Steinbeck |
It has always seemed strange to me... the things we admire in men, kindness and generosity, openness, honesty, understanding and feeling, are the concomitants of failure in our system. And those traits we detest, sharpness, greed, acquisitiveness, meanness, egotism and self-interest, are the traits of success. And while men admire the quality of the first they love the produce of the second. |
| Nina Fedoroff |
As people around the world become more affluent, they are demanding diets richer in animal protein, which will require ever more robust feed crop yields to sustain. |
| David Baltimore |
What does gene A do? What does gene B do? What does it do in different contexts? What's its importance? We know the answer to that for a very small number of genes, the ones that made themselves evident many years ago. |
| David Eagleman |
The same stimuli in the world can be inducing very different experiences internally and it's probably based on a single change in a gene. What I am doing is pulling the gene forward and imaging and doing behavioural tests to understand what that difference is and how reality can be constructed so differently. |
| Joe Dante |
Editing is where movies are made or broken. Many a film has been saved and many a film has been ruined in the editing room. |
| Jessica Hagedorn |
I'm part Spanish. My paternal grandfather came from Spain via Singapore to Manila. On my mother's side it's more mixture, with a Filipino mother and a father who was Scotch Irish-French; you know, white American hybrid. And I also have on my father's side a great-great-grandmother who was Chinese. So, I'm a hybrid. |
| Scott Adams |
Scientists will eventually stop flailing around with solar power and focus their efforts on harnessing the only truly unlimited source of energy on the planet: stupidity. I predict that in the future, scientists will learn how to convert stupidity into clean fuel. |
| Nina Fedoroff |
In agriculture, people have taken wild plants that can't be eaten by people - and turned them into wonderful food sources. And that's because genomes can change, and people working with plants have picked mutations. Mutations are nothing more than genetic changes. |
| Zach Galifianakis |
I used to be really cute. I could send you earlier photos where I'm stunning. But I've gained about twenty pounds over the past two years, and the more weight I've put on, the more success I've had. If you drew a diagram of weight gain and me getting more work, a mathematician would draw some conclusions from that. |
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Organic farmers and our food supply have a huge environmental hazard to contend with compliments of the U.S. government ? chemtrails. Chemtrails are chemical or biological agents deliberately sprayed at high altitudes for purposes undisclosed to the general public in programs directed by various government officials. These sprays pollute the soil, water and air while compromising the health of humans, animals and plants. But wait ? Monsanto has developed seeds that will weather the effect of the sprays, creating a tidy profit for the corporation while organics suffer.
Monsanto?s GMO seeds are specially designed to grow in the high presence of aluminum. Aluminum is the chemical found in chemtrails. If this poisoning continues, true organic farming may become impossible in the not so dista...
This post is a comment.
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Scientists Have 'Hacked Photosynthesis' To Boost Crop Growth By 40 Percent (npr.org)
There's a big molecule, a protein, inside the leaves of most plants. It's called Rubisco, which is short for an actual chemical name that's very long and hard to remember. Rubisco has one job. It picks up carbon dioxide from the air, and it uses the carbon to make sugar molecules. It gets the energy to do this from the sun. This is photosynthesis, the process by which plants use sunlight to make food, a foundation of life on Earth. "But it has what we like to call one fatal flaw," Amanda Cavanagh, a biologist and post-doctoral researcher at the University of Illinois, says. Unfortunately, Rubisco isn't picky enough about what it grabs from the air. It also picks up oxygen. "When it does that, it makes a ...
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US Scientist Who Edited Human Embryos With CRISPR Responds To Critics
Facing criticism from fellow scientists, the researcher behind the world's largest effort to edit human embryos with CRISPR is vowing to continue his efforts to develop what he calls "IVF gene therapy." MIT Technology Review:
Shoukhrat Mitalipov, of Oregon Health Sciences University in Portland, drew global headlines last August when he reported successfully repairing a genetic mutation in dozens of human embryos, which were later destroyed as part of the experiment. The laboratory findings on early-stage embryos, he said, had brought the eventual birth of the first genetically modified humans "much closer" to reality. ...
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The goal of chaos-driven reactions is to plant the seeds of spacetime rather than desire.
Joy is a constant. We reflect, we grow, we are reborn.
The grid is buzzing with sonar energy.
You must take a stand against bondage. Only a visitor of the totality may release this harmonizing of wisdom. Yes, it is possible to shatter the things that can obliterate us, but not without awareness on our sid...
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Successful Correction of Genetic Problems In Mice Before Birth Raises Hopes of Similar Treatments For Humans
Gene editing to correct faulty DNA in human embryos has taken a step closer to becoming a reality, with scientists showing it is possible to correct genetic problems in mice before they are born. Researchers used a form of the gene-editing tool Crispr-Cas9 to introduce a mutation into a gene that would otherwise cause lethal liver failure in mice. While the approach has previously been shown to work in mice after birth, the latest study showed it was also possible to make the all-important tweak before they were born. Writing in the journal Nature Medicine, a team of researchers in the US report how they conducted a series of experiments to explore the use of gene editing in mouse...
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I had a dream me and my best friend were at my parents house and we were being chased by a wallaby-mole hybrid.
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Climate Change Will Cause Beer Shortages and Price Hikes, Study Says
A new study from Nature Plants has identified the one climate-related issue that can unite people from myriad political backgrounds -- beer. From a report:
Led by Wei Xie, an agricultural scientist at Peking University, the paper finds that regions that grow barley, the primary crop used to brew beer, are projected to experience severe droughts and heat waves due to anthropogenic climate change. According to five climate models that used different projected temperature increases for the coming century, extreme weather events could reduce barley yields by 3 to 17 percent. Barley harvests are mostly sold as livestock fodde...
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Group of Biologists Tries To Bury the Idea That Plants Are Conscious
Frustrated by more than a decade of research which claims to reveal intentions, feelings and even consciousness in plants, more traditionally minded botanists have finally snapped. Plants, they protest, are emphatically not conscious. From a report:
The latest salvo in the plant consciousness wars has been fired by US, British and German biologists who argue that practitioners of "plant neurobiology" have become carried away with the admittedly impressive abilities of plants to sense and react to their environments. While ...
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linus -coconut
haley -coconut
sebastian -frozen tear
abigail -amethyst
marnie -pumpkin pie
willy -diamond
leo -duck feather
sam -cactus
jodi -pancakes
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They don't use CRISPR... I wonder if it is just for editing sequences that you already have.
Commercial DNA synthesis is done by phosphoramidite chemistry.
This post is a comment.
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