Author: Luigi Guarino

• Mesoamerican origin of the common bean (Phaseolus vulgaris L.) is revealed by sequence data. Revealed is kinda strong isn’t it? This from a bean expert of my acquaintance: “Yes, we knew that, as it seems to be the case of all species of the Phaseoli section. They could have done a bit better in including the 2 populations of Cordoba mountain, in order to see whether these belong to the first migration to the Andes, or the second one. Wild vulgaris from western Panama, or Venezuela, could have helped in this regard too. We have shown years ago that the complex genetic structure in Mexico and in Colombia is the result of these floristic migrations combined with gene flow events because beans cross among themselves.”
• The Enigma of Solanum maglia in the Origin of the Chilean Cultivated Potato, Solanum tuberosum Chilotanum Group. These are long-day adapted and therefore crucial to the history of the potato in Europe. But the various sorts of evidence looked at to investigate their relationship to the rare Chilean wild relative S. maglia just do not agree. Bummer.
• Wild and weedy Lactuca species, their distribution, ecogeography and ecobiology in USA and Canada. So Iowa is a wild lettuce hotspot. If you’re interested in the germplasm, it’ll be in the genebank of Palacký University in the Czech Republic.
• Sustainability of the traditional management of Agave genetic resources in the elaboration of mezcal and tequila spirits in western Mexico. Tequila industrial agriculture should learn from the traditional kind.
• Fate of the World: computer gaming for conservation. Worth a try. No, really.
• The Economic Value of Mangroves: A Meta-Analysis. You might think there would be a value in the abstract; you would be wrong.
• Early millet use in northern China. That would be Setaria italica and Panicum miliaceum, and new evidence from ancient starch grain on pottery and grinding stones found in archaeological sites has pushed back their cultivation in N China by 1000 and 2000 years respectively, to about 9500-7500 BC. The Archaeobotanist has more, as ever.
• Digitization and online availability of original collecting mission data to improve data quality and enhance the conservation and use of plant genetic resources. They’re there (and here; what’s up with that?) to consult and make use of if you want.

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