Brainfood

September 18, 2020September 18, 2020

Brainfood: Special citizen science edition

Something for the weekend. I hope you enjoy this special edition of Brainfood focusing on citizen science, Indigenous knowledge and participatory research. Do you like themed Brainfood editions like this? There will be another one on Monday, as it happens. They’re more tricky to produce, but if there’s significant interest I may make the extra effort. Let me know, and suggest topics.

The value of climate-resilient seeds for smallholder adaptation in sub-Saharan Africa. Up to USD 2 billion in Malawi and Tanzania over the next 30 years.
Agricultural productivity and deforestation: Evidence from input subsidies and ethnic favoritism in Malawi. Cheaper fertilizers increased yields and decreased deforestation. Better seeds would help too, no doubt (see above).
Channels used to deliver agricultural information and knowledge to smallholder farmers. Farmer groups and demonstration plots work well to spread the news about fertilizers and seeds.
Integrating Conventional and Participatory Crop Improvement for Smallholder Agriculture Using the Seeds for Needs Approach: A Review. Combine high-tech centralized and participatory decentralized germplasm evaluation and breeding approaches to get those better seeds to farmer groups and their demonstration plots.
Citizen science breathes new life into participatory agricultural research. A review. Why do the participatory, decentralized bit? Here’s why. Fortunately, there’s an app for it…
A global resource for exploring and exploiting genetic variation in sorghum crop wild relatives. If those seeds include sorghum, you could start with this lot.
Gendered differences in crop diversity choices: A case study from Papua New Guinea. And don’t forget gender as you do all this participatory, decentralized stuff. For example, in PNG, the women are into marketing, the men into tradition.
Crowd breeding of Danish apple cultivars. No word on gender differences, alas.
Modelling illustrates that genomic selection provides new opportunities for intercrop breeding. Here’s the high-tech, centralized bit, or at least a model of it, ripe for mashing up with citizen science.
Dissection of the domestication‐shaped genetic architecture of lettuce primary metabolism. More high-tech, centralized stuff, the real thing this time. Which can now be used to breed a better lettuce, hopefully by lots of citizens growing the stuff in their gardens and providing salad tasting results through a nifty app.
Indigenous and Local Knowledge Practices and Innovations for Enhancing Food Security Under Climate Change: Examples from Mijikenda Communities in Coastal Kenya. Maybe farmers should run participatory programmes, with scientists as the citizens.
Micronutrient composition and microbial community analysis across diverse landraces of the Ethiopian orphan crop enset. Don’t know how you’d do citizen science on this, but I bet somebody does.
Discovering the indigenous microbial communities associated with the natural fermentation of sap from the cider gum Eucalyptus gunnii. Someone mention traditional fermentation practices?
The Milpa Game: a Field Experiment Investigating the Social and Ecological Dynamics of Q’eqchi’ Maya Swidden Agriculture. Citizen science is not a game. No, wait…
The Ancient Tree Inventory: a summary of the results of a 15 year citizen science project recording ancient, veteran and notable trees across the UK. Not a game indeed: very serious, but fun, definitely fun.

September 7, 2020September 7, 2020

Brainfood: Millet yields, Millet review, Taro genome, Salty sunflower, WorldVeg network, Phylorelatives, Bovine domestication, Diet quality, Nutrition metrics, Aztec diets, Complementary conservation, Post-2020, Climate change breeding

Using remote sensing to assess the effect of trees on millet yield in complex parklands of Central Senegal. Tree cover in the landscape of up to 35% increases pearl millet yields.
Genetic and genomic resources for improving proso millet (Panicum miliaceum L.): a potential crop for food and nutritional security. All that’s missing is the investment. And, possibly, the trees.
A high-quality genome of taro (Colocasia esculenta (L.) Schott), one of the world’s oldest crops. Has benefitted from two whole-genome duplications. Now that this investment has been made, I expect to see the crop take off.
Key traits and genes associate with salinity tolerance independent from vigor in cultivated sunflower. There is a way to increase yield under salinity stress without affecting yield under more benign conditions. Millets and taro should take note.
Sustainable Cucurbit Breeding and Production in Asia Using Public–Private Partnerships by the World Vegetable Center. WorldVeg presents improved lines and F1 hybrids of bitter gourd (Momordica charantia), tropical pumpkin (Cucurbita moschata), ridge gourd (Luffa acutangula) and sponge gourd (Luffa cylindrica) to private sector breeders at Crop Field Days. Everybody wins. But are there any private sector breeders of millets and taro to take note?
Crop Wild Phylorelatives (CWPs): phylogenetic distance, cytogenetic compatibility and breeding system data enable estimation of crop wild relative gene pool classification. Predicting crossability of a crop with its wild relatives from whatever data is on hand.
Evolution and domestication of the Bovini species. They’ve been very promiscuous, and the results can be summarized in one illustration.
Defining diet quality: a synthesis of dietary quality metrics and their validity for the double burden of malnutrition. Seven dietary metrics out there, none of them perfect.
Assessing nutritional, health, and environmental sustainability dimensions of agri-food production. Here’s how to make nutrition and health metrics better. Maybe these guys should get together with the above?
Aztec diets at the residential site of San Cristobal Ecatepec through stable carbon and nitrogen isotope analysis of bone collagen. The men drank more pulque than the women. I wonder if 500 years from now they’ll be judging us like this.
The unique role of seed banking and cryobiotechnologies in plant conservation. Good summary of the different ex situ approaches available for plants, none of them perfect. The existence of an Exceptional Plant Conservation Network and a Project Baseline for seed genebanks was news to me.
Making the post-2020 global biodiversity framework a successful tool for building biodiverse, inclusive, resilient and safe food systems for all. The CBD needs to learn to love mixed, diverse agricultural landscapes. And genebanks, natch. Maybe it should invest in dietary metrics.
The Role of Genetic Resources in Breeding for Climate Change: The Case of Public Breeding Programmes in Eighteen Developing Countries. Business as usual, except more intense. Oh, and perhaps more use of landraces. No word on dietary metrics.

August 31, 2020September 1, 2020

Brainfood: Torres bananas, European Neolithic, Pleistocene dogs, Thai Neolithic, Amaranth domestication, Gluten trends, Perennial cereal, Resistant potatoes, Aridamerica, Ex situ mammals, AI, Zoonoses, Trade & diversity

Multidisciplinary evidence for early banana (Musa cvs.) cultivation on Mabuyag Island, Torres Strait. Early as in 2000 years ago, which isn’t all that early compared to PNG. But opens possibility of mainland Aborigines being agriculturalists too, at least in the wet tropical NE.
Climate shaped how Neolithic farmers and European hunter-gatherers interacted after a major slowdown from 6,100 BCE to 4,500 BCE. There was the most interaction between the two groups where Middle Eastern crops came to the limit of their climatic adaptation.
The first evidence for Late Pleistocene dogs in Italy. Those hunter gatherers had dogs.
Three thousand years of farming strategies in central Thailand. Millet first, then rice, but initially still rainfed. No word on whether anyone had dogs.
Parallel Seed Color Adaptation during Multiple Domestication Attempts of an Ancient New World Grain. 3 grain amaranth domesticated species from one wild ancestor, with selection for white seeds in common.
Wheat (Triticum aestivum L.) Breeding from 1891 to 2010 Contributed to Increasing Yield and Glutenin Contents but Decreasing Protein and Gliadin Contents. No evidence of increasing immunostimulatory potential in German wheat varieties.
‘MN‐Clearwater’, the first food‐grade intermediate wheatgrass (Kernza perennial grain) cultivar. Perennial is good, sure, but is it low in gluten?
Screening of wild potatoes identifies new sources of late blight resistance. All plants in about 10% of 384 wild potato accessions were resistant.
An Aridamerican model for agriculture in a hotter, water scarce world. 17 genera have highest potential to be used in polyculture to improve agricultural resilience, human health, and community prosperity in the face of climate change.
Ex situ management as insurance against extinction of mammalian megafauna in an uncertain world. Fancy maths can tell you were genebanks could do the most good.
Machine learning: A powerful tool for gene function prediction in plants. Very fancy maths can help you predict phenotype from genotype, and much more besides.
Zoonotic host diversity increases in human-dominated ecosystems. Oh we are in so much trouble.
Global changes in crop diversity: Trade rather than production enriches supply. Well, actually, a bit of both.

August 24, 2020August 27, 2020

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.

August 17, 2020August 17, 2020

Brainfood: Niche modelling, Post-2020 double, CC & productivity, Wild cacao, Popcorn data, Regulations, Duplicates, Oz ag, Kenya diversity, Stressed wheat, DUS, Connectivity, Population differentiation

ntbox: an R package with graphical user interface for modeling and evaluating multidimensional ecological niches. Yes, another one, deal with it.
Global targets that reveal the social–ecological interdependencies of sustainable development. The post-2020 framework should not have separate targets for social and ecological outcomes.
Integrating agroecological production in a robust post-2020 Global Biodiversity Framework. Case in point?
The Historical Impact of Anthropogenic Climate Change on Global Agricultural Productivity. We’ve lost a decade of productivity growth since 1961.
Exploring the diversity and distribution of crop wild relatives of cacao (Theobroma cacao L.) in Colombia. Habitat protection needed.
The Global Popcorn Project. Here comes the data! And more.
Editorial: Leeway to Operate With Plant Genetic Resources. Research Topic on ABS, biosafety and IPR regulations and how they affect use of PGR.
SNP Markers and Evaluation of Duplicate Holdings of Brassica oleracea in Two European Genebanks. Out of 10 pairs of accessions with similar names in the Russian and Nordic genebanks, 5 showed genetic differences, and 3 of these also morphological differences.
History of crop introductions, breeding and selection in Australia: The 140 years from 1788. But at what cost?
The welfare effects of crop biodiversity as an adaptation to climate shocks in Kenya. Crop diversity mitigates income variability risk caused by climate.
Genetics of yield, abiotic stress tolerance and biofortification in wheat (Triticum aestivum L.). Well that seems sorted then.
Is plant variety registration keeping pace with speed breeding techniques? No?
Global Cropland Connectivity: A Risk Factor for Invasion and Saturation by Emerging Pathogens and Pests. Nice maps of ease of movement among different cultivation areas of vegetatively propagated crops. Could be used to model movement of genetic resources as well as of pests/diseases?
Global patterns of population genetic differentiation in seed plants. More population differentiation for tropical, mixed‐mating, non‐woody species pollinated by small insects, and lower for temperate, outcrossing trees pollinated by wind. Could perhaps be mashed up with this fragmentation database.