- ‘White gold’ guano fertilizer drove agricultural intensification in the Atacama Desert from ad 1000. And maize was at the heart of it.
- What’s new during the first millennium BCE in Greece? Archaeobotanical results from Olynthos and Sikyon. Not maize, alas, but what you’d expect, plus pine and sesame.
- Local adaptation contributes to gene expression divergence in maize. Stress-response genes are the ones which have been selected. No word on whether any of them were important in the Atacama.
- Genotyping tools and resources to assess peanut germplasm: smut-resistant landraces as a case study. Ok, so it sounds like the resistant line that was previously used is virtually identical to an accession in the USDA collection.
- Do We Need to Identify Adaptive Genetic Variation When Prioritizing Populations for Conservation? No, but we’ll need it to prioritize use, surely?
- Incorporating Realistic Trait Physiology into Crop Growth Models to Support Genetic Improvement. We’ll need better growth models too.
- Wild to domesticates: genomes of edible diploid bananas hold traces of several undefined genepools. 3 of them, in fact, in both SE Asia and New Guinea.
- Evolution of the bread wheat D-subgenome and enriching it with diversity from Aegilops tauschii. Three lineages were involved in the hybridizations that led to bread wheat. Coincidence?
- De novo genome assembly of two tomato ancestors, Solanum pimpinellifolium and Solanum lycopersicum var. cerasiforme, by long-read sequencing. Thousands of genes not found in the cultivated crop, apparently.
- Genomic mechanisms of climate adaptation in polyploid bioenergy switchgrass. Introgression from the northern genepool (one of three) was really important in adaptation after the glaciers retreated. Gene duplication also involved in adaptation.
- Economic Studies Reinforce Efforts to Safeguard Specialty Crops in the United States. Where “safeguard” means “provide clean planting material.”
- Comparative analysis of genetic diversity of rice (Oryza sativa L.) varieties cultivated in different periods in China. Diversity went up, then down, between the 1980s and the 2010s.
- Wheat Varietal Diversification Increases Ethiopian Smallholders’ Food Security: Evidence from a Participatory Development Initiative. Why the diversity in breeding programmes is important, and how farmer participation can help maintain it.
- The tricot citizen science approach applied to on-farm variety evaluation: methodological progress and perspectives. How to do the above.
- Biodiversity and conservation of Phoenix canariensis: a review. A wild relative in trouble, and what to do about it.
- Tropical and Mediterranean biodiversity is disproportionately sensitive to land-use and climate change. As can be seen from the above.
Brainfood: Sorghum lodging, GR wheat, Wild potato core, Wild tomato structure, Protected areas, Biodiversity agreements, Malt archaeology, Hittite archeology, Seed traders, Peasant networks, Seed storage, Mesoamerican crop origins, Intensification, Cattle breeds, Pig domestication, Rice barcodes, Potato history, Rice spread
- Large-scale genome-wide association study reveals that drought-induced lodging in grain sorghum is associated with plant height and traits linked to carbon remobilisation. To reduce lodging, better to select for stay-green (delayed leaf senescence) than for short stature and lodging resistance per se. Here’s a Twitter thread by one of the authors summarizing the findings.
- Green revolution ‘stumbles’ in a dry environment: Dwarf wheat with Rht genes fails to produce higher grain yield than taller plants under drought. At least it doesn’t lodge, though, right?
- A Core Subset of the ex situ Collection of S. demissum at the US Potato Genebank. From 149 to 38, keeping 96% of all marker diversity.
- Migration through a major Andean ecogeographic disruption as a driver of genotypic and phenotypic diversity in a wild tomato species. I guess if you were going to make a core collection for this you could do worse than sample ecogeographically diverse and isolated spots. Tricky to conserve in situ though.
- DNA barcoding of Oryza: conventional, specific, and super barcodes. 6 hypervariable regions in the chloroplast genome can serve as rice-specific DNA barcodes. Assuming you agree on species concepts in the first place.
- A “Global Safety Net” to reverse biodiversity loss and stabilize Earth’s climate. The 50% of the Earth to save to save the Earth.
- Three Key considerations for biodiversity conservation in multilateral agreements. Plan, model, assign responsibility.
- Mashes to Mashes, Crust to Crust. Presenting a novel microstructural marker for malting in the archaeological record. Aleurone cell breakdown in archaeobotanical remains is a robust indicator of beer-making. I bet they find it everywhere now.
- The agroecology of an early state: new results from Hattusha. Huge underground grain silos, with each container holding grain from multiple sites, which could be evidence of tax-paying. But no word on beer.
- Informal Seed Traders: The Backbone of Seed Business and African Smallholder Seed Supply. Lots of room for engagement, and considerable upside. If I were to pick out just one high-potential intervention, it would be providing training in seed testing.
- Restoring cultivated agrobiodiversity: The political ecology of knowledge networks between local peasant seed groups in France. I’m sure they’re testing their seeds.
- A Protective Role for Accumulated Dry Matter Reserves in Seeds During Desiccation: Implications for Conservation. Cells must have >35% dry matter to be able to withstand desiccation.
- Multiple lines of evidence for the origin of domesticated chili pepper, Capsicum annuum, in Mexico. It looks like we — inexplicably — missed this the first time around. Chilli, maize and beans originated in different parts of Mexico.
- Ecological intensification and diversification approaches to maintain biodiversity, ecosystem services and food production in a changing world. Though you can change one thing at a time, it’s better to redesign the whole system. But is the better the enemy of the good?
- Refining the genetic structure and relationships of European cattle breeds through meta-analysis of worldwide genomic SNP data, focusing on Italian cattle. 2 groups among Italian breeds: North-Central breeds linked to Alpine and Iberian breeds, and Podolian-Sicilian breeds with links to the Balkans.
- The Archaeology of Pig Domestication in Eurasia. Independent domestication in northern Mesopotamia by 7500 BC (extensive management) and China by 6000 BC (maybe intensive); failed to take off in Japan, for interesting reasons.
- Vegetative States: Potatoes, Affordances, and Survival Ecologies. The potato has both helped to underpin and resist state coercion. The Hittites would have worked something out, though, I feel.
- Holocene coastal evolution preceded the expansion of paddy field rice farming. Rice only moved south from the lower Yangtze 2-3000 years ago, once costal land opened up. No word on affordances.
Brainfood: Seeds & corona, Bleeding finance, Maiz de humedo, High altitude maize, Open data, Seed swapping, Wheat core, Banana epigenetics, Soil biodiversity, Ethiopian mustard diversity, Ryegrass GWAS, Peanut antioxidants, CWR conservation, VRR
- Seed security response during COVID-19: building on evidence and orienting to the future. First and foremost, support farmers save their seeds.
- Blended finance for agriculture: exploring the constraints and possibilities of combining financial instruments for sustainable transitions. How about supporting farmers save their seeds?
- Dynamic conservation of genetic resources: Rematriation of the maize landrace Jala. Genebanks helping farmers save their seeds.
- Molecular Parallelism Underlies Convergent Highland Adaptation of Maize Landraces. Early farmers saving their maize seeds in the Mexican highlands eventually helped out farmers in the Andean highlands. With GIF goodness.
- Open access to genetic sequence data maximizes value to scientists, farmers, and society. How will it help farmers save their seeds?
- Applying Knowledge of Southern Seed Savers to Community-Based Agricultural Biodiversity Conservation Practice. The people saving and swapping seeds in the Ozarks respond to films, need how-to manuals, and could be a tad more diverse. I suspect this is not just true in Arkansas.
- Characterization of wheat germplasm conserved in the Indian National Genebank and establishment of a composite core collection. Farmers trying to save their seeds rejoice.
- Heritable epigenetic diversity for conservation and utilization of epigenetic germplasm resources of clonal East African Highland banana (EAHB) accessions. Hey, it’s not just seeds. Methylation patterns follow geography but not morphology in a genetically uniform group of vegetatively propagated cultivars.
- Blind spots in global soil biodiversity and ecosystem function research. Not now, soil biodiversity, I’m too busy dealing with seeds.
- Narrow genetic base shapes population structure and linkage disequilibrium in an industrial oilseed crop, Brassica carinata A. Braun. Landraces of Ethiopian mustard and improved lines cluster in separate groups, but overall diversity is low. Not enough seeds saved, perhaps?
- High-Throughput Genome-Wide Genotyping To Optimize the Use of Natural Genetic Resources in the Grassland Species Perennial Ryegrass (Lolium perenne L.). Only possible because of saved seeds.
- Presence of resveratrol in wild Arachis species adds new value to this overlooked genetic resource. I hope we’ve saved enough seeds.
- Main Challenges and Actions Needed to Improve Conservation and Sustainable Use of Our Crop Wild Relatives. It’s quite difficult — and insufficient — to save the seeds of wild species, but we should do it nevertheless.
- Influence of diversity and intensification level on vulnerability, resilience and robustness of agricultural systems. Why we should all save seeds.
Nibbles: Wild bees, Korean rice, Peanut coffee, Ag research, Sugarcane, Eat This Newsletter
- Wild bees important even if there are plenty of honeybees.
- The rice war hots up between Korea and Japan.
- Peanut coffee. Peak 2020. Hopefully.
- Op-ed on international agricultural research and indigenous knowledge systems takes us 25 years back in time to a simpler world.
- New varieties are behind sugarcane expansion in the US. You want to delve a little deeper into the history of sugarcane down South? Ok, but it ain’t pretty. Still, some people want to redeem the crop.
- Jeremy’s latest newsletter. Lots of good stuff on there. I’ll be saying a little more about it in a post.
Nibbles: USA020, Protected areas, Svalbard, Indian sugarcane, Ġgantija, Fishy spice, Ft Collins video, Gums
- Important job opening at USDA running the Ames Plant Introduction Station. 50,000 accessions, people.
- Online database on the effectiveness of protected areas.
- 100-year seed experiment kicks off.
- Towards more sustainable sugarcane in India. Spoiler alert: juice, not molasses.
- The Neolithic temples of Malta were used to worship food.
- The “fish pepper” of Black Chesapeake homegardens lost, and found..
- News clip on the USDA central genebank at Ft Collins.
- Invest 50 mins in learning about eucalypts.