I think I may have missed the PNAS paper “Current perspectives and the future of domestication studies” when it came out in 2014. I certainly can’t seem to find it on the blog here. But I’m glad it got mentioned recently on Twitter because it has something I’ve been searching for on and off for a while now: a reasonably up-to-date timeline of crop and livestock domestication. Which I’m therefore happy to reproduce here. I’d love to read a global narrative of the history of domestication linking all these together.
Brainfood: Opuntia breeding, Teosinte genes, Sugarcane breeding, Proso diversity, Watermelon diversity, Wheat pre-breeding, Sorghum wild relatives, Grasspea evaluation, Banana domestication, Pea pan-genome, Bambara diversity
- Needs and strategies for breeding and sustainable use of genetic resources in Opuntia. Surely there are molecular markers for spinelessness by now?
- Teosinte confers specific alleles and yield potential to maize improvement. There are 71 QTLs associated with 24 differential traits between maize and teosinte.
- A short review on sugarcane: its domestication, molecular manipulations and future perspectives. Forget sugar or fuel, the future is vaccine production.
- SNP discovery in proso millet (Panicum miliaceum L.) using low-pass genome sequencing. Ok, but why are the South Asian accessions so different from everything else?
- Meta-analysis of qualitative and quantitative trait variation in sweet watermelon and citron watermelon genetic resources. Rob citron to pay sweet watermelon.
- Genomics-informed prebreeding unlocks the diversity in genebanks for wheat improvement. How I learned to stop worrying and love non-adapted germplasm.
- Wild Sorghum as a Promising Resource for Crop Improvement. Oooh, I like the idea of de novo domestication of Australian wild sorghum species.
- Disentangling the Genetic Diversity of Grass Pea Germplasm Grown under Lowland and Highland Conditions. Always good to have multi-locational trial data, even when n=2.
- Hybridization, missing wild ancestors and the domestication of cultivated diploid bananas. Let the search for the 3 unknown wild ancestors begin!
- Improved pea reference genome and pan-genome highlight genomic features and evolutionary characteristics. If only Mendel had worked on wild peas too.
- Genetic diversity and population structure analyses of South African Bambara groundnut (Vigna subterranea [L.] Verdc) collections using SNP markers. Two heterotic groups to play around with.
The happiness of visiting genebanks
Sorry for the relative silence lately. Work intervened, involving a longish trip to Bhutan, to check out their national genebank. The specific project in question is the one we call BOLD. Check my insta for the inevitable, and inevitably classy, pix.
Brainfood: Diversity & stability, Diversity & profitability, Rotations, Food environments, Food system transitions, Deforestation & ag, Great Lakes priorities, Translational research, Field size, Genetic erosion
- Consistent stabilizing effects of plant diversity across spatial scales and climatic gradients. More species-diverse communities are more stable. Ok, what about agricultural systems though?
- Financial profitability of diversified farming systems: A global meta-analysis. Total costs, gross income and profits were higher in diversified systems, and benefit-cost ratio similar to simplified systems. No word on stability, alas.
- Global systematic review with meta-analysis reveals yield advantage of legume-based rotations and its drivers. Integrating a legume into your low-diversity/low-input cereal system can boost main crop yields by 20%. I wonder if this meta-analysis was included in the above meta-analysis. Again, no word on stability though.
- The influence of food environments on dietary behaviour and nutrition in Southeast Asia: A systematic scoping review. It’s the affordability, stupid. Should have gone for more diversified farming I guess :)
- Global food systems transitions have enabled affordable diets but had less favourable outcomes for nutrition, environmental health, inclusion and equity. Well according to this, industrialised farming (ie simplification) has led to more affordable diets. But we know from the above that diversification can be profitable. So it was the wrong kind of simplification? Can we diversify now and maintain affordability while also improving nutrition, environmental health, inclusion and equity? Wouldn’t that be something.
- Disentangling the numbers behind agriculture-driven tropical deforestation. Ending deforestation is not enough. The resulting agriculture must be diversified in the right way too, I guess.
- Strategizing research and development investments in climate change adaptation for root, tuber and banana crops in the African Great Lakes Region: A spatial prioritisation and targeting framework. Diversifying with drought-tolerant bananas and heat-tolerant potatoes is all well and good, but you also have to know where exactly to diversify, and here’s how.
- Translational research in agriculture. Can we do it better? Difficulty developing drought-tolerant bananas and heat-tolerant potatoes? Get more diverse peer-reviewers.
- Increasing crop field size does not consistently exacerbate insect pest problems. When you diversify, don’t worry too much about making fields bigger.
- Genetic diversity loss in the Anthropocene. You can predict change in genetic diversity from change in range size, and the average is about a 10% loss already. Ok, what about agricultural systems though? Wait, isn’t this where we came in? My brain hurts…
Happy birthday to Aussie genebank guidelines
The Australian Network for Plant Conservation is celebrating the first birthday of the third edition of “Strategies and guidelines for developing, managing and utilising ex situ collections” with a nice bunch of resources. And a quick survey. Check it out.