Tag Archive | Plant Breeding

Those naughty plants!

Potentially promiscuous pollen from corn tassels by circulating via Flickr.

Many people, including me, are concerned about potential harm to crop biodiversity from gene flow. Most people’s concern focuses on transgenics. There is a certain probability, albeit small, that transgenes will end up in the progeny of non-transgenic plants, weedy relatives of the crop, or wild relatives that grow nearby due to pollen flow. Transgenes can also be moved from place to place by accidental or purposeful movement of seeds.

How much transgene flow is actually happening is a subject of some controversy, but what about gene flow between non-transgenic plants?

There is potential for problems whenever plants that aren’t supposed to cross stray from their intended mates. Some things to think about include how gene flow happens at the field and genetic levels and what characteristics of the genes themselves can affect permanence of contaminating genes once they get into a variety they shouldn’t be in.

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Is space beer risky?

freeflyer_nasaspacebeerbarleySapporo is selling 250 6-packs of their ultra limited edition Space Beer through a lottery system for 10,000 yen each – but only to people who live in Japan. The proceeds will go to Okayama University for science education. The malting barley used in this beer is of the Haruna Nijo variety, developed by Sapporo. This barley is the 4th generation produced from barley that spent 5 months aboard the International Space Station in the Zvezda Service Module. The hops from Furano, Hokkaido were also from seeds that spent time in space, although I wasn’t able to find out how long they spent up there. This all sounds pretty cool, a simple feel good pro-space research event.

Sure, it’s cool, and I wouldn’t mind having a taste, but my first thought after reading Barley + Space = Space Beer! on Wired was: were there any mutations in the barley or hops that were caused by the exposure to gamma rays, etc while in space? Should the lucky few who get to try it be worried about unintended changes in the barley and hops from gamma rays and other mutagens in space?

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A Vf gene a day keeps the fungus away

applespottyEver gotten apples from the farmer’s market or grocery store only to have them go bad in the back of your fridge? I know I have. Just a few weeks ago, I got about 20 apples from the CSA. Unfortunately, I can only eat so many per day and they started to go bad before I got to eat them. Some of them got really nasty (as you can see to the right) within just a few days despite being in the fridge.

Eating locally is great, but since apples only ripen once per year, and they spoil relatively fast, that means we only have fresh apples for a short time each year. That’s too bad, since apples are a wonderful crunchy snack loved by kids and adults that provide health benefits from their fiber and antioxidants.

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