Ladies and gentlemen, here is the latest in my series of Pollination Methods videos that I make as part of my thesis project. While carrots and beets are not closely related, they share similar life cycles, pollination methods, and even breeding goals – so I put both of these root vegetables in the same video.
This time of the year, in winter greenhouses, plant breeders will be pollinating carrots and beets – sometimes in the same greenhouse. With help from the carrot and beet experts here at UW-Madison, I give you how to pollinate carrots and beets. Enjoy!
Tag: DNA
Why did The Atlantic publish this piece trying to link miRNAs and GMOs?
Editor’s note: republished with permission from The Biology Files.
By Emily Willingham
A study from a Chinese group led by Chen-Yu Zhang of Nanking University and published in Cell Research, has uncovered the fascinating result that when people eat rice, they can absorb microRNAs (miRNAs)–tiny sequences of RNA–from the rice into the blood. These rice-originating miRNAs turn up in blood and tissues of people who eat rice and…here’s the kicker…one type of rice miRNA interacts with human proteins that are responsible for removing LDL (“bad” cholesterol) from the blood (!). It’s the first report of plant miRNAs ending up in people by way of diet and the finding that at least one of them alters an important process in the body.
The implications could extend in many a direction, but not as far as writer Ari Levaux would like to take them in this remarkably confusing article published on the Atlantic Website. Before taking on the errors and the overstretch that are that piece, let’s look at something far more interesting: miRNAs themselves. Continue reading “Why did The Atlantic publish this piece trying to link miRNAs and GMOs?”
Waiter, there’s DNA in my dinner!
Threadless recently hosted* a t-shirt contest for Jeffery Smith‘s Institute for Responsible Technology: the No GMO t-shirt design challenge (see Karl’s post Vote for talking, not fighting for more details). One of the shirts really struck me: GMO Shortens Life Span by Michael. The artist proposes an equation:
plants + DNA = death
This slogan really makes me wonder – does the artist know that plants have DNA? Does he know that his own cells are teeming with DNA? That without DNA, life wouldn’t exist? Do most people know that DNA is essential for life? What would the average person say if told that they eat about 100 thousand miles of DNA in the average meal?
If this is the level of understanding, or rather, misunderstanding, that persons have, can we ever expect to have useful discourse on the subject of biotechnology or even biology itself? This worries me greatly. Just in case anyone out there reading this is concerned that DNA is dangerous, I’d like to provide a simple recipe that anyone can use to see and touch DNA for themselves.
Continue reading “Waiter, there’s DNA in my dinner!”
Biofortified 