[NAFEX] Gene behind an apple's red colour identified (ZeeNews.com)
Sam.Brungardt at state.mn.us
Mon Dec 4 11:32:19 EST 2006
Gene behind an apple's red colour identified
Washington, Dec 02: Rosy red apples are something that most of us simply
can't resist and now CSIRO researchers have located the gene that
controls the colour of apples, a discovery that may lead to bright new
"The red colour in apple skin is the result of anthocyanins, the natural
plant compounds responsible for blue and red colours in many flowers and
fruits," says the leader of the CSIRO Plant Industry research team, Dr.
"Colour is a very important part of fruit marketing. If fruit doesn't
look good, consumers are far less likely to buy it, no matter how good
it might taste," she added.
"As well as giving apples their rosy red hue, anthocyanins are also
antioxidants with healthy attributes, giving us plenty of reasons to
study how the biochemical pathway leading to apple colour is regulated,"
A Post Doctoral Fellow with the team, Dr Adam Takos, used the latest
molecular technology to measure how much particular genes were
activated, or expressed, in apple skin as the fruit ripened and
"Apple growers have always known that apple colour is dependant on light
- apples grown in darkness or even heavy shade don't turn red when they
ripen," Dr Walker says. "That made it very likely that the gene we were
looking for requires light to be activated.
By identifying master genes that were activated by light, Adam was able
to pinpoint the gene that controls the formation of anthocyanins in
apples, and we found that in green apples this gene is not expressed as
much as in red apples," she added.
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the nafex