- 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.
Brainfood: Seed quantity, Seed quality, Seed testing, Seed sampling, Cryo review, Potato diversity, Coconut cryo, Apple genebanks, Pear vulnerability, Pear restoration, Celebrity conservation, Indigenous rematriation, Farmers’ Rights
- Optimizing the accession-level quantity of seeds to put into storage to minimize seed (gene)bank regeneration or re-collection. = [nvt × 3]+[nd × (y × x)]+ qmin if you must know.
- A pragmatic protocol for seed viability monitoring in ex situ plant genebanks. Formulas are good, but you need some flexibility too.
- A power analysis for detecting aging of dry-stored soybean seeds: Germination versus RNA integrity assessments. Germination testing is good, but RNA integrity assessment is better, especially early on in storage.
- Sampling strategies for genotyping common bean (Phaseolus vulgaris L.) Genebank accessions with DArTseq: a comparison of single plants, multiple plants, and DNA pools. Pool the DNA from 25 plants for best results. They don’t even have to be alive :)
- Plant Cryopreservation: Principles, Applications, and Challenges of Banking Plant Diversity at Ultralow Temperatures. No seeds? No problem. Still a lot of research needed though.
- Potato soup: analysis of cultivated potato gene bank populations reveals high diversity and little structure. This should help figuring out what to put in cryo, I guess.
- Developing new in vitro micropropagation and cryopreservation techniques in coconut. A little less research needed.
- SNP genotyping Dutch heritage apple cultivars allows for germplasm characterization, curation, and pedigree reconstruction using genotypic data from multiple collection sites across the world. Now do coconuts.
- Vulnerability of pear (Pyrus) genetic resources in the U.S. It’s moderate to high. No word on what the vulnerability of coconut is.
- First plant conservation translocation in Armenia: restoring globally threatened wild pear populations. A little less vulnerable?
- Designing celebrity-endorsed behavioral interventions in conservation. I’d like to get a celebrity to endorse coconut cryoconservation. Mr Freeze?
- The seeds are coming home: a rising movement for Indigenous seed rematriation in the United States. Makes all the formulas and testing and gadgets worthwhile.
- Farmers’ Rights in the Plant Treaty: interrelations and recent interactions with other international regimes and processes. Will require all those formulas and testing and gadgets.
Nibbles: Cropscapes, Ecuador cacao, Nigerian yams, Lima bean show, Mesopotamian cooking, Nepal seed banks, RNA integrity, China genebanks, Cryo comics, Greening
- The authors of book “Moving Crops and the Scales of History” have been awarded the Edelstein Prize 2024 for their work to “redefine historical inquiry based on the ‘cropscape’: the assemblage of people, places, creatures, technologies, and other elements that form around a crop.” Let’s see how many cropscapes we can come up with today.
- Here’s one. The Ecuador cacao genebank gets some much-needed help.
- Digging into Nigerian yams. And another.
- Castle Hex has a programme on Lima beans on 7-8 September. Sounds like fun.
- What if you can’t work out what the crops are, though? As in Mesopotamian recipe books, for example.
- The community seed banks of Nepal have a new website. Good news for those Nepalese cropscapes.
- A new project is testing RNA integrity number (RIN) as a metric of seed aging for a bunch of rare wild plants. One day maybe community seed banks will be using it.
- China has inventoried its agricultural germplasm. Will it be applying RIN next?
- The French are using bandes dessinées to teach about cryopreservation of animal genetic resources. Livestockscapes?
- Some drylands are getting greener and some people think that’s a problem. Always something.
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?
Nibbles: Forest seed collecting, Colombian maize, Türkiye & China genebanks, Community seedbank trifecta, Wheat breeding, Rice breeding, Bean INCREASE, WorldVeg regen, UK apples, Rangeland management
- How to collect forestry seeds.
- Whole bunch of new maize races collected in Colombia.
- The Türkiye national genebank in the news. Lots of collecting there. Though maybe not as much as in this genebank in China.
- But small communities need genebanks too. Here’s an example from Ghana. And another from India. And a final one from the Solomon Islands.
- Need to use the stuff in genebanks though. Here’s how they do it in the UK. And in Bangladesh. And in Europe with the INCREASE project, which has just won a prize for citizen science. And in Taiwan. Sort of citizen science too.
- Collecting apples in the UK. Funny, the canonical lost-British-apple story appears on the BBC in the autumn usually. Kinda citizen science.
- Or we could do in situ conservation, as in this South African example… Just kidding, we all know it’s not either/or. Right? Probably a good idea to collect seeds is what I’m saying. Could even do it through citizen science.