- Human dispersal and plant processing in the Pacific 55 000–50 000 years ago. There was more to the peopling of the Pacific than seafaring.
- Identification of breadfruit (Artocarpus altilis) and South American crops introduced during early settlement of Rapa Nui (Easter Island), as revealed through starch analysis. Though seafaring took these people all the way to South America, it sees.
- Early agriculture and crop transitions at Kakapel Rockshelter in the Lake Victoria region of eastern Africa. A bit like Rapa Nui, Lake Victoria got crops from both west and east over time.
- Cotton and post-Neolithic investment agriculture in tropical Asia and Africa, with two routes to West Africa. Funny they didn’t find cotton at the Lake Victoria site.
- Drawing diffusion patterns of Neolithic agriculture in Anatolia. Itinerant expert harvesters spread agriculture into Anatolia. Maybe around Africa too, who knows.
- Early animal management in northern Europe: multi-proxy evidence from Swifterbant, the Netherlands. Early farmers in northern Europe managed separate herds of cattle in different ways alongside crops. What, itinerant expert livestock herders too?
- Introduction, spread and selective breeding of crops: new archaeobotanical data from southern Italy in the early Middle Ages. Sicily is a bit like Rapa Nui and Lake Victoria.
- Rice’s trajectory from wild to domesticated in East Asia. Rice domestication pushed back to about the same time as the Fertile Crescent. No word on the role of expert harvesters.
- Archaeological findings show the extent of primitive characteristics of maize in South America. Maize arrived in lowland South America in a pre-domesticated state, and stayed like that for a long time. That’s a long way for expert harvesters to go.
Not Your Usual Potatoes
Jeremy’s latest newsletter discusses a very humble wild potato species, which we have actually blogged about here on a number of previous occasions. Do subscribe, there’s other cool stuff in there.
Indigenous people in the southwest of North America had more of a hand in crop domestication than is often thought, according to a new paper on the Four Corners potato, Solanum jamesii. So much so, according to the press release I read, that the results “support the [uncited] assertion that the tuber is a ‘lost sister,’ joining maize, beans and squash—commonly known as the three sisters—as a staple of crops ingeniously grown across the arid landscape”.
The release explains that populations of Four Corners potato, found, naturally enough, in the areas where Arizona, Utah, Colorado and New Mexico meet, fall into two distinct types. Some — archeological populations — grow within 300 metres of an archaeological site and are relatively small. The rest are non-archaeological and widely spread throughout the species’ range. Sampling the DNA of both types, the researchers discovered much more diversity in the non-archaeological populations than in those associated with settlements, which suggests domestication by local people.
Researchers were also able to show that specific archaeological populations were most like non-archaeological populations quite some distance away, which means that transport networks among the indigenous people were well developed. Settlement sites in the southwest of Utah were around 500 km from the nearest natural populations from which they might have been derived.
S. jamesii contains double the protein, calcium, magnesium, and iron of more familiar potatoes (S. tuberosum). The archeological populations were, however, not within the species’ central range, where the wild populations are much larger and more productive. So did people transport and grow the tubers simply to have a nourishing source of food close at hand in winter? That would be cultivation. Or were they, as seems likely, also actively selecting for things like taste, size and frost tolerance, which would put them well on the way to domestication? More detailed DNA might studies provide an answer.
A further thought. Four Corners potato, which is still grown by some Diné people (and probably others), copes well with drought and heat. Might it also have a wider market?
What did Jesus eat?
Atlas Obscura: Jesus never ate bananas.
Smithsonian: Hold my Lava Flow.
Nibbles: Seed video, Kew video, Indonesian cassava, Crop maps, Neglected crops, KEPHIS lab, Turkish genebank, Nepal rice, Polynesian sugarcane, Ancient beer, Garlic basics
- Nice video celebrating seeds.
- Nice old video about Kew Gardens.
- Tracing the origins of Indonesian cassava. No, it wasn’t introduced by Kew, but yes, colonialism was involved.
- Latest data on where crops are grown. Including cassava.
- Self Help Africa director turns on to neglected crops. Including cassava.
- New lab in Kenya for spreading clean crops around. Including cassava?
- Türkiye’s genebank in the news. No cassava.
- Nepalese rice gets a Welsh upgrade.
- Collecting sugarcane in French Polynesia to (eventually) support local booze industry.
- Long live the ancient booze bandwagon.
- Garlic 101.
Brainfood: Wild melon dispersal, Fertile Crescent domestications, Angiosperm threats, Wild rice alliance, Wild potato leaves, Brassica oleracea pangenome, Wild Vigna nutrients
- Frugivory by carnivores: Black-backed jackals are key dispersers of seeds of the scented !nara melon in the Namib Desert. Jackals pee on wild melon relatives and disperse their seeds, not necessarily in that order.
- Out of the Shadows: Reestablishing the Eastern Fertile Crescent as a Center of Agricultural Origins: Part 1. Go East, young archaeobotanists!
- Extinction risk predictions for the world’s flowering plants to support their conservation. Fancy maths says 45% of angiosperms are potentially threatened. Same for crop wild relatives in the Eastern Fertile Crescent? Black-backed jackals unavailable for comment.
- Global Wild Rice Germplasm Resources Conservation Alliance: WORLD WILD-RICE WIRING. Scientists get together to conserve global wild rice germplasm resources, understand the ecology of wild rice environments, identify and address threats, define effective ways to use wild species in rice improvement, and provide data for decision-making. Not a minute too soon, given the above.
- Morphometric analysis of wild potato leaves. Who needs genotyping anyway.
- Large-scale gene expression alterations introduced by structural variation drive morphotype diversification in Brassica oleracea. Brassica scientists need genotyping, apparently, that’s who.
- Exploring the nutritional potentials of wild Vigna legume species for neo-domestication prospects. Not much potential if they go extinct though. Quick, photograph their leaves!