Papaya protected from virus by wild relative

Papaya ringspot virus is the major limiting factor to production of pawpaws in many countries. There is a GM “solution”, but there’s now news that after 50 years of trying researchers have transferred resistance by conventional breeding from a wild relative, Vasconcellea quercifolia. I ran this by a colleague who’s an expert on papaya taxonomy, genetics and breeding and he had this to say:

I am very happy that they seem to have succeeded in their long and difficult work. And this is excellent news for all developing world papaya growers. GM was not the right solution because each virus strain implied a costly transformation (including patent rights), and the virus is highly variable.

Nibbles: Lingonberries, Genebank Standards, Genebank, Seed Systems, Chinese drought, Cuba, Mexican bees

Botanic gardens get the treatment

We probably don’t give botanic gardens the attention they deserve. So it’s a pleasure to point out that Biodiversity and Conservation has a special issue out on Botanic Gardens in the Age of Climate Change, with a focus on Europe. Lots of interesting stuff in there, including from some old friends.

And since we’re on the subject of published papers, I’d like to say what a good idea it is to include an illustration in the abstract of a paper. I had not come across this before I stumbled on the example here on the left in a recent Scientia Horticulturae paper on Citrus phylogeny.