- Creation of a core set of durum wheat accessions based on agro-morphological traits with maximum diversity and lower redundancy. From 710 to 13 accessions (2%!) using 32 morphological traits, thanks to Power Core.
- Construction of a core collection of Perilla frutescens (L.) Britton Germplasm in the South Korean gene bank using agro-morphological traits. From 1227 to 235 accessions (19%) using 17 morphological traits, thanks to a bunch of different methods.
- Comprehensive Phenotyping of 1,807 Indian Barnyard Millet (Echinochloa frumentacea Link) Accessions from Indian National Genebank: Unlocking Diversity for Core Set Development. From 1,807 to 271 accessions (15%) using 23 quantitative traits, thanks to Core Hunter 3.
- Genomic resequencing reveals genetic diversity, population structure, and core collection of durian germplasm. From 114 to 26 accessions (23%) using 39 million high-quality SNPs across the genome.
- Development of a composite core collection from 5,856 sesame accessions being conserved in the Indian National Genebank. From 5,856 to 1,768 accessions (30%) using SNPs and phenotypic data.
- Optimizing core collections for genetic studies: a worldwide flax germplasm case study. From 1,593 to 350 accessions (22%) using phenotypic and genotypic data, times 200, thanks to CoreCollection, corehunter III, TrainSel, and more.
- An Optimized Core Sample of the Wild Potato Solanum fendleri in the USA. From 269 accessions, to 38 plants, to 1 accession (0.4%!). Beat that!
- Countrywide Corchorus olitorius L. core collection shows an adaptive potential for future climate in Benin. From 305 to 54 accessions (18%) using 1,114 high-quality SNPs, thanks to ShinyCore. Some indication of usefulness.
- Multi-environmental evaluation of barley core collection against spot blotch for genetic variability and identification of promising genotypes exhibiting resistance. From a core collection of 678 accessions to 2 genotypes that might actually be useful to breeders. Finally!
Nibbles: Impact assessment, Kenyan veggies, African veggie genebank, Madd fruit, Moroccan fruits, Date palm, DOGE at USDA
- Modelling adoption of biofortified crops is no substitute for empirical field surveys. Kind of obvious, but I guess needed saying.
- Kenyans may not need biofortified crops, though. Assuming they are actually eating their traditional vegetables.
- There’s a whole genebank for Africa’s vegetables.
- Saba senegalensis is also naturally biofortified.
- The High Atlas Foundation is also on a fruit tree mission
- Is the date palm the most important fruit tree in the world, though?
- I wonder what will happen to USDA’s fruit tree collections.
Brainfood: Agroforestry, Afro-descendant conservation, Opportunity crops, Off-farm income, Phureja conservation, European taro, Argania products, Honeybee intensification, Mycorrhizal hotspots
- Effects of tree cover and crop diversity on biodiversity and food security in tropical agricultural landscapes. In tropical agricultural landscapes, modest tree cover in diverse cropping systems supports higher biodiversity and higher crop yields, demonstrating that agroforestry can deliver win-win synergy between conservation and food production.
- Afro-descendant lands in South America contribute to biodiversity conservation and climate change mitigation. I guess biodiverse landscapes managed according to traditional knowledge deliver superior environmental outcomes not just in farms with trees but also in forested territories under community management.
- Science for Africa’s future food security: reimagining the histories and futures of underutilised crops. Reviving indigenous, underutilised crops in sub-Saharan Africa by restoring their historical and cultural significance can enhance nutritional diversity, climate resilience and food security, paralleling the evidence above that culturally rooted, biodiversity-rich systems are good for both the environment and communities.
- Off-farm income and dietary diversity in subsistence farming in Burundi. Across rural and urban settings, from farms to forests to cities, culture-informed, biodiversity-rich food systems offer interlocking benefits: ecological resilience, climate mitigation, improved nutrition, and community empowerment. Or am I stretching a point here?
- Cultivar loss and conservation of genetic resources of the phureja potato (Solanum phureja L., Phureja Group) in Peru. Traditional Andean farming communities are witnessing the disappearance of this culturally significant diploid potato group, which has rich genetic diversity and interesting adaptations, highlighting an urgent need for in situ conservation to preserve it. Oh wow, look, locally rooted, biodiversity-rich farming systems, anchored in cultural heritage, are key to sustaining ecosystem services, safeguarding genetic diversity, and building climate-resilient, equitable food futures. Again.
- Taro (Colocasia esculenta) in Europe: a journey through fields, botanical gardens, ditches and city markets. This culturally important root crop was introduced in Europe in antiquity and now survives in fields, markets, and even city waterways as both ornament and food, but despite its genetic and cultural richness, it remains under-researched and requires both ex situ and in situ conservation to safeguard its long-term use. So yep, even this one says that conserving crop diversity through culturally embedded, multi-dimensional stewardship is essential for strengthening food security and preserving heritage in a changing climate.
- Innovation of argan (Argania spinosa (L.) Skeels) products and byproducts for sustainable development of rural communities in Morocco. A systematic literature review. Innovative uses of argan tree products and by-products in Morocco, from bioplastics and biochar to livestock feed and natural repellents, offer promising pathways for conservation, cultural preservation, and rural economic development, provided local communities are actively engaged in participatory management. Where have I heard that before?
- Negative ecological impacts of honeybees begin at densities below recommended levels for crop pollination. Too many honeybee hives can reduce wild bee abundance, species richness, and fruit yield on farms, even when wildflower strips are present, suggesting that ecological balance is disrupted when managed pollinators outcompete native species. Which can probably be cleverly connected with all of the above with a little more time than I have at the moment.
- Global hotspots of mycorrhizal fungal richness are poorly protected. What can I tell you, we need in situ conservation for mycorrhiza too. And machine learning can help us figure out where best to do it. For all of the above, and more, naturally.
Is the avocado toast?
Jeremy’s latest newsletter saves me including an interesting paper on the domestication of avocado in a forthcoming Brainfood.
The often humid climate of the tropics means that ancient plant remains are few and far between, making it difficult to trace the long-term history of crops there. Thanks to a dry rock shelter in western Honduras, which preserved “an unparalleled sequence of radiocarbon-dated avocado remains,” researchers have now rewritten its ancient history. The paper is paywalled; I found out about it because one of the universities involved has just published a popular account, which in turn led me to an earlier popular report from another of the universities.
Two key milestones emerged. First, people were tending wild avocado trees as far back as 11,000 years ago. And by 7500 years ago, they had begun to select for larger fruits with tougher skins. Those ages reveal a bigger surprise; they predate the arrival of maize. The standard view is that as maize spread to new locations, it transformed foragers into farmers. The new results show that people were “fully engaged in tree cultivation upon maize’s arrival”.
The research also has a message for the modern avocado industry, 90% of whose fruits are of the single Hass variety. Because they are multiplied as clonal offsets, those trees are all genetically identical and thus all equally vulnerable to any pest, disease or climate change that affects them. The researchers point out that farmers grew avocados from seedlings for millennia, and that much of that genetic diversity lingers in remaining relict populations. As Amber VanDerwarker, lead researcher on the study, points out:
Developing new varieties through seed selection of modern domesticates and wild relict populations growing throughout Central America may provide more success in adapting trees to these changing landscapes than clonal propagation alone.
Nibbles: Cherokee Three Sisters, Australian native grains, Ancient Peruvian irrigation, Indian apples, IFOAM Seed Platform, MSB, Chinese conservation, Protected areas, Soybeans breeding, Funding cuts
- Three Sisters rematriated to historical Cherokee Nation.
- Native grains returning to Indigenous land in Australia too.
- May need to bring back agricultural practices too, like in Peru.
- Meanwhile, in India, farmers are trying to grow apples in new places. Go figure.
- Anyway, seems like the IFOAM Seeds Platform might be able to help.
- And genebanks too of course, like the Millennium Seed Bank.
- As part of a comprehensive conservation systems, goes without saying, like in China.
- Which also include climate-proof protected areas.
- It worked for soybeans, after all.
- Well, for now anyway…