Showing posts with label interspecific reproduction. Show all posts
Showing posts with label interspecific reproduction. Show all posts

Wednesday, April 15, 2009

t-minus, packing and email flurries

With some last minute emails and packing of supplies (see pix) we're all set to go. We'll be leaving a little before noon tomorrow and meeting up with everyone else around midnight outside customs at el Aeropuerto Internacional Jorge Chavez. See you all in Peru.
As many will attest, Pat is always emailing.Here are two tool boxes that will hopefully get all our supplies safe and sound to Lima. While we were buying these a guy told Pat that they were what he used for his tools he took to Antarctica. If they work there they should work anywhere.The guts

Wednesday, March 25, 2009

March 25th, 2009

Hello, IRB tomato is an joint research effort to identify interspecific reproductive barriers in tomato (IRB tomato). These are barriers that many of the wild species of tomato process to prevent two distinct species from breeding together. The tomatoes we work with are endemic to Peru, Ecuador, Chile, and the Gallapagos Islands. They differ from your garden tomato which lacks these barriers to breeding and will accept pollen from most any wild tomato species (ex. Solanum pennellii). However S. pennellii will not allow pollen from your garden tomato to fertilize and produce seed. This one way cross is called Unilateral Incongruity (UI). Some wild tomato species also process barriers to inbreeding called Self Incompatibility (SI). The former is less understood even though many of these species co-habitate the same areas, in some instances their branches have been found to intertwine (S. pimpinellifolium and S. arcanum). In the next couple of weeks a group of researchers will be heading to Peru to look for some of these wild tomato populations to better understand these interspecies mechanisms to reproduction. Periodic posting of our adventures will be found here, so stay tuned.