- From biomedical to politico-economic crisis: the food system in times of Covid-19. How to build back better? Food sovereignty, peasant agriculture, territorial markets and agroecology.
- Food for thought: The underutilized potential of tropical tree‐sourced foods for 21st century sustainable food systems. How to realize that potential? Lots of ideas here, including: “Investment in the conservation of tree genetic resources and the development of formal seed delivery systems.”
- Priorities, challenges and opportunities for supplying tree genetic resources. Invest in what bits of conservation and seed delivery systems, though? Read this and find out.
- Genetic threats to the Forest Giants of the Amazon: Habitat degradation effects on the socio‐economically important Brazil nut tree (Bertholletia excelsa). After reading the above, maybe apply to this?
- From texts to enacting practices: defining fair and equitable research principles for plant genetic resources in West Africa. How to make sure everyone understands words the same way? Theater. Of course, darling.
- Safeguarding a global seed heritage from Syria to Svalbard. It took a (global) village.
- Focused Identification of Germplasm Strategy (FIGS): Polishing a rough diamond. Natural selection is not enough. Links both to above and below, but you knew that.
- Göte Turesson’s research legacy to Hereditas: from the ecotype concept in plants to the analysis of landraces’ diversity in crops. “Understanding … landrace diversification assists also on breeding new cultivars sustainably since it provides insights regarding crop evolution across stress-prone environments, and for finding genebank accessions and other germplasm whose allelic diversity may be missing in today’s breeding programs.”
- Yield, yield stability and farmers’ preferences of evolutionary populations of bread wheat: A dynamic solution to climate change. Maybe the problem is with today’s breeding programs?
- What Do We Really Know About Adaptation at Range Edges? Peripherality does not predict degree of adaptation.
- The Central Asiatic region of cultivated plants. 800 species, no less.
- Biodiversity enhances the multitrophic control of arthropod herbivory. Plants lose less biomass to arthropods in mixtures, as compared to monocultures.
- Evolutionary origins of taro (Colocasia esculenta) in Southeast Asia. Not PNG after all, according to chloroplast DNA.
- Abattoirs – A Hidden Centre for Livestock Genetic Resources Loss in Nigeria. Because they slaughter pregnant animals. Did not see that one coming, frankly.
- More than fish: Policy coherence and benefit sharing as necessary conditions for equitable aquaculture development. Regional policies need to be domesticated.
Diversify your landscapes redux
I originally published this post on 29 July, but then Dr Baudron pointed to two additional papers on Twitter, and then later to another one, so I’m re-upping, for the second time, with a sixth bullet point.
There’s a nice series of papers on the benefits of diverse landscapes in Ethiopia from Frédéric Baudron of CIMMYT and others.
Just in case this tweet disappears, or whatever, here are the links:
- Wheat yields and zinc content are higher closer to forests because of elevated organic matter in the soil.
- Diets are also more diverse nearer forests.
- Livestock (but not crop) productivity is higher nearer forests, and smallholder systems generally more sustainable.
- Bird diversity benefits from tree cover too, and that provides important ecosystem services to smallholders.
- Even limited reforestation in the surrounding landscape is associated with higher wheat yields in simulations, and you can potentially measure it from space.
- “More people, more trees.”
Domesticating the podcast
Want to review the state of knowledge on domestication of chickens, sheep and cattle in less than half an hour? Yes? Well then, Jeremy has a podcast for you. It’s an interview with Olivier Hanotte, who teaches livestock genetics at the University of Nottingham.
The beautiful chicken pic is from a book by photographers Moreno Monti and Matteo Tranchellini.
There’s also a stunning book on the diversity of African cattle from ILRI, where Dr Hanotte also has a position.
Featured comment: Community seed drying
Denise Costich, who has just retired as head of the CIMMYT genebank, gives us a bit of the back story to a paper we included in a recent Brainfood:
Thanks for the mention of our Dry Chain work… the first time I heard about drying beads was at my very first AGM in Rome in 2012. That was a key introduction to this technology for me. It was there in my “knowledge base” when we first began to tackle the problem of seed storage in remote locations without electricity – the community seed reserves and farmers’ corn cribs of the Western Highlands of Guatemala.
AGM stands for Annual Genebank Meeting. The managers of the CGIAR genebanks have been organizing them since 2012.
Brainfood: Genebank technology, Genebank research, Apple genomes, Napier genome, Wheat genome, Blue maize, FACE, Pigeonpea diversity, Millet domestication, Ancient dogs, Ancient bovids, Domestication syndrome, Date pollen, Commons, Genetic diversity trifecta
- New technologies to improve the ex situ conservation of plant genetic resources. Genebanks need to catch up with the latest science even just to maintain their seeds.
- Advanced Strategic Research to Promote the Use of Rice Genetic Resources. High-throughput phenotyping and genome sequencing are the latest science that will make the most of those seeds.
- Phased diploid genome assemblies and pan-genomes provide insights into the genetic history of apple domestication. Analysis of genomes of two main wild progenitors plus the crop uncovers genes so far untapped for improvement.
- The elephant grass (Cenchrus purpureus) genome provides insights into anthocyanidin accumulation and fast growth. It’s related to pearl millet, apparently. Which may or may not be a good thing. No word on any genes so far untapped for improvement.
- Triticum population sequencing provides insights into wheat adaptation. Wide adaptation is largely due to introgression from the wild. No word on any genes so far untapped for improvement.
- The Right Tortilla for the Right Occasion: Variation in Consumers’ Willingness to Pay for Blue Maize Tortillas Based on Utilization. Consumers are willing to pay 42% more for blue tortillas, but only when eating out, presumably as part of virtue signalling.
- 30 years of free‐air carbon dioxide enrichment (FACE): What have we learned about future crop productivity and its potential for adaptation? That enrichment wont save us, that’s what.
- Phenotypic Divergence Analysis in Pigeonpea [Cajanus cajan (L.) Millspaugh] Germplasm Accessions. From 81 accessions to 9 promising ones, at least for Malawi.
- A model for the domestication of Panicum miliaceum (common, proso or broomcorn millet) in China. Domestication took 3000 years.
- Origins and genetic legacy of prehistoric dogs. All dogs are descendants of a now extinct wolf population, and their genetics show both interesting parallels with, and divergences from, that of humans.
- Brain Size Does Not Rescue Domestication Syndrome. Not even for humans, I suspect. Kidding apart, this is fascinating. It suggests that, for animals at least, the domestication syndrome is not actually a thing. Or at least has not been properly tested. If there’s interest, I’ll do a full post. Let me know in the comments below.
- Ancient genomes reveal tropical bovid species in the Tibetan Plateau contributed to the prevalence of hunting game until the late Neolithic. The now tropical gaur ranged much further north during the warmer Neolithic, which facilitated the exploration of the Tibetan Plateau.
- Optimization of in vitro germination and cryopreservation conditions for preserving date palm pollen in the USDA National Plant Germplasm System. Always good to have another way of storing germplasm.
- Beyond the material: knowledge aspects in seed commoning. Comparing global with local seed commons reveals importance of managing knowledge, both scientific and traditional.
- Genetics to the rescue: managing forests sustainably in a changing world. To manage forests sustainably, you have to conserve and use their genetic diversity. Interesting that they needed a conference to work that out.
- Genetic mixing for population management: from genetic rescue to provenancing. And using that genetic diversity could mean mixing it up.
- The importance of genomic variation for biodiversity, ecosystems and people. Maintaining ecosystem services means maintaining genetic diversity. Sounds like these authors went to the same conference.