Bread or beer? Why choose?

The Cartesian Dualists of the press, if not those of the hallowed groves of academe, are at it again. Der Spiegel, 1 late last month, and The Independent, late last week, report on Professor Patrick McGovern’s latest book, Uncorking the Past: The Quest for Wine, Beer and Other Alcoholic Beverages, almost entirely in terms of which came first, beer or bread.

All the familiar old arguments are trotted out. That bread is actually quite hard to make, while a forgotten soaked seed or rotten fruit is easy enough to swallow and packs enough punch for the brain to say, in Der Spiegel’s memorable phrase, “whatever that was, I want more of it!”. But this convenient opposition ignores things like porridge or gruel, both of which probably represent easier ways of consuming cereals than bread. 2 Most cereals don’t even make very good bread, at least not as it is understood by European journalists.

Professor McGovern, who runs the delightfully named Biomolecular Archaeology Laboratory for Cuisine, Fermented Beverages, and Health at the University of Pennsylavania’s Museum of Archaeology and Anthropology, is actually claiming far more than that beer came first. He seems to be laying nothing less than the development of settled agriculture, and with it civilisation as we know it, at the door of drunks. According to Der Spiegel:

[A]griculture — and with it the entire Neolithic Revolution, which began about 11,000 years ago — are ultimately results of the irrepressible impulse toward drinking and intoxication.

“Available evidence suggests that our ancestors in Asia, Mexico, and Africa cultivated wheat, rice, corn, barley, and millet primarily for the purpose of producing alcoholic beverages,” McGovern explains. While they were at it, he believes, drink-loving early civilizations managed to ensure their basic survival.

He knits together all sorts of fascinating evidential threads, and at least as far as the articles go, makes a convincing enough case. But then, I remain deeply skeptical of single explanations for anything as complex as the evolution of settled agriculture. And I suspect McGovern does too. As he told The Independent:

As for his theory on how alcohol motivated man to adopt agriculture, McGovern said: “I just wanted to put it out there as a worldwide hypothesis. Then over time maybe the different pieces can be put together from across the world.”

I’m trying really trying to avoid this, but I can’t: I’ll drink to that.

Yasuní National Park disappoints lovers of crop wild relatives

The Yasuní National Park in Ecuador is apparently the mother of all biodiversity hotspots, “home to the most diverse array of plants and animals in South America and possibly the planet.” And not only that, it may actually continue to be so, unlike many other protected areas.

There are hints that the park could have extra conservation value in a warming world. Yadvinder Malhi, an ecologist at Oxford specializing in the Amazon, said that nearly all climate models simulating the impacts of global warming show the area staying wet even as other parts of the vast basin get drier.

Yeah, but has it got any crop wild relatives, I hear you ask. Well, I asked our friend Julian Ramirez at CIAT, who works with Andy Jarvis. Alas, only one species turns up in Yasuní from the genera of the main South America crops for which he has a decent number of geo-referenced observations (Arachis, Solanum, Phaseolus and Manihot): Manihot brachyloba. Andy, who did his PhD in Yasuní, says he also saw wild cacao and pineapples there. No doubt Julian is putting together the data for those genera as we speak.

Yasuní is of course in the Amazonian lowlands. Wild relatives of Phaseolus and Solanum are in other, nearby protected areas in the Ecuadorian Andes. But that’s another story. For this one: thanks, Julian.

Featured: A way out of genebank database hell or a siren song?

Simone, Fawzy and Luigi debate the virtues of different approaches to sharing germplasm information:

There are people who need and trust only the database type of information and others who are comfortable, productive and creative with more informal, network type of knowledge sharing. The fact is that the second type of user group has been heavily neglected in the past.

In which user group do you fall?

How old is that lentil?

You may remember yesterday’s nibble about the allegedly 4,000-year-old lentil from an archaeological site in Turkey which actually germinated. Intrigued, I ran the news item by some colleagues at Kew. They pointed me to a New Scientist article from a few years back which describes their attempt to verify a previous alleged example of very old seed (from the sarcophagus of an Egyptian mummy, in fact) germinating. The thing is, you can predict pretty well how seed will behave over time if you know the temperature and relative humidity of the conditions. You just plug those numbers into a fairly well known and understood equation.

Dickie found that if he started with top-quality seed and the temperature remained constant at 16 °C, one grain in a thousand might still germinate after 236 years. With the temperature sometimes hitting the high 20s, the grain would all be dead in 89 years. And if the seed was less than perfect to begin with…

So let’s just say I’ll be personally needing some fairly solid evidence for the age of that lentil.