- Crop origins explain variation in global agricultural relevance. What explains which crops are most important globally? For seeds, an origin in seasonally dry regions. For root, leaf and herbaceous fruit crops, an origin in the aseasonal tropics. But if you account for all that, basically age.
- Linguistic diversity and conservation opportunities at UNESCO World Heritage Sites in Africa. There’s a correlation between linguistic and biological diversity. Has anyone done crop diversity and languages?
- Sparing or sharing land? Views from agricultural scientists. If you look at synergies between nature and nurture (as it were), and beyond crop yield, you realize it’s the wrong question.
- Can agroecology improve food security and nutrition? A review. Yes, in 78% of 55 cases. But will it scale? And does it need to? Anyway, at least it’s looking beyond yield.
- Global effects of land-use intensity on local pollinator biodiversity. Intensification is bad for pollinator biodiversity for most land uses, but cropland intensification is only bad in the tropics. Can’t help thinking this needs to be mashed up with the above.
- Crop breeding for a changing climate: integrating phenomics and genomics with bioinformatics. In particular, integrating the phenomics and genomics of landraces and wild relatives at the extremes of habitable ranges. Well, there’s a lot more to it than that, but this is what stuck with me.
- Comprehensive genotyping of a Brazilian cassava (Manihot esculenta Crantz) germplasm bank: insights into diversification and domestication. 54% duplicates out of 3354 clones, the remaining 1536 arranged in 5 ecoregional ancestral groups.
- A chromosome-level genome of a Kordofan melon illuminates the origin of domesticated watermelons. Not from southern Africa after all. Nice bit of work.
- Preliminary investigation of potent thiols in Cypriot wines made from indigenous grape varieties Xynisteri, Maratheftiko and Giannoudhi. Cypriot grapes are more drought tolerant than varieties grown in Australia, but produce the tastes Aussie wine drinkers really like.
- A morphometric approach to track opium poppy domestication. Fancy math says Swiss Neolithic farmers were involved in the domestication of the opium poppy. Enough to drive one to drink.
- Registration of GA-BatSten1 and GA-MagSten1, two induced allotetraploids derived from peanut wild relatives with superior resistance to leaf spots, rust, and root-knot nematode. Sequencing paying off.
- Extensive variation within the pan-genome of cultivated and wild sorghum. Sorghum next?
The making of GapAnalysis.R
A big thank you to Colin Khoury, Julian Ramirez, Chrystian Sosa, and Dan Carver for this guest post, reminding us of the history of conservation gap analysis work at CIAT and other CGIAR centres during the past decade and more.
Maps have helped people find their way for at least 2500 years, so it’s no surprise that geographic methods have been part of the portfolio of tools used to try to understand patterns and distributions of crop diversity, and, more recently, crop genetic erosion, ever since these topics began to garner the interest of scientists and conservationists. Innovations in digital mapping tools, made possible by developments in computer processing and the internet, have enabled continual leaps in the power and efficiency of such methods throughout the past few decades.
CGIAR embraced geographic information system (GIS) research tools about as soon as they were developed. At the International Center for Tropical Agriculture (CIAT), the International Potato Center (CIP), the International Plant Genetic Resources Institute (IPGRI, now Bioversity International), and the International Rice Research Institute (IRRI), among others, scientists began to apply available GIS tools to genetic resources conservation, and then develop their own suite of methods, programs, and datasets, often in collaboration with national partners and academics (e.g. wild potatoes, peanuts, chile pepper, and peanut/potato/cowpea, as well as climate data). Some of these developments, such as FloraMap and DIVA-GIS (and more recently CAPFITOGEN, by other researchers), have been aimed at making these tools easier to use by those in genetic resources community without extensive GIS experience: an important effort toward greater accessibility, even if it has met with mixed success.
By the 2000s, crop wild relatives were gaining attention as important genetic resources for crop breeding, and would soon be specifically targeted for conservation both by the Convention on Biological Diversity (CBD’s Aichi Target 13), and the Sustainable Development Goals (SDG Target 2.5). It was increasingly important, therefore, that conservation research tools were applied to these useful wild plants, and fortunate that the groundwork for GIS applications had already been laid by a decade or so of research. Through the second phase of a cross-CGIAR initiative called the Global Public Goods Project 2 (GPG2), run from 2007-2010, the distributions of the wild relatives of ten CGIAR mandate crops were mapped, with priorities for further collecting for ex situ conservation identified.
Nibbles: Western grapes, Mapping pastoralists, Difficult species
- Grafting the Grape Virtual Lecture Series: Missouri Vines and Wines: Then and Now. Wait, that’s today!
- Mapping for Pastoralists, On-line Seminar. Phew, it’s next week.
- APPS Special Issue Call for Papers: “Meeting the Challenge of Exceptional Plant Conservation: Technologies and Approaches.” Relax, you have until June. Wait…
Nibbles: Emissions, Anthromes, S Asian farming origins, Old seeds, Chestnut, Canadian heirlooms, ABS newsletter
- Food contributes 1/3 of greenhouse gas emissions.
- How we got to the above.
- And a focus on how farming started in South Asia in particular.
- A long-term seed experiment carries on.
- Another chapter in the story of the comeback of the American chestnut?
- Want to help a heirloom make a comeback?
- There’s a newsletter on the law and policy behind all this stuff.
Brainfood: Post 2020 indicators double, Protected areas, Infraspecific variation, SeedExtractor, Processing, Regenerating spuds, Gut microbiota, Plant microbiome, Citrus greening, Rusts never sleep, Bee competition, Pollinator decline, Genomic selection, Pig diversity
- An analysis of genetic diversity actions, indicators and targets in 114 National Reports to the Convention on Biological Diversity. It is not well done, but the authors were surprised to see it done at all.
- Essential indicators for measuring site‐based conservation effectiveness in the post‐2020 global biodiversity framework. Remote sensing will save us. But see above.
- Pervasive cropland in protected areas highlight trade-offs between conservation and food security. Remote sensing (et al.) in action.
- Conserving intraspecific variation for nature’s contributions to people. Well, yeah. But can remote sensing help?
- SeedExtractor: An Open-Source GUI for Seed Image Analysis. Somebody mention intraspecific variation? Here’s a way to cope with seed variation.
- The processed food revolution in African food systems and the double burden of malnutrition. There’s bad processing, and good processing, even the bad processing has some upsides, but really we should try to have only good processing.
- Expression of internal reproductive barriers in a germplasm bank accession of the wild potato Solanum chacoense Bitter in three ex situ regeneration cycles. Ne < N.
- Effects of Iron and Zinc Biofortified Foods on Gut Microbiota In Vivo (Gallus gallus): A Systematic Review. Biofortified foods are good for gut health. In chickens.
- Experimental evidence of microbial inheritance in plants and transmission routes from seed to phyllosphere and root. Plants get their microbiome from the seeds whence they came, not just the environment.
- A stable antimicrobial peptide with dual functions of treating and preventing citrus Huanglongbing. From a wild relative, natch.
- Wheat rust epidemics damage Ethiopian wheat production: A decade of field disease surveillance reveals national-scale trends in past outbreaks. Boom-and-bust is alive and well.
- Honey bee hives decrease wild bee abundance, species richness, and fruit count on farms regardless of wildflower strips. And the good news just keeps on coming.
- Pollination strategies in the face of pollinator decline. The really good news is that plants may adapt to pollinator decline.
- Genomic Selection for Any Dairy Breeding Program via Optimized Investment in Phenotyping and Genotyping. You don’t need more money, you just need to reallocate some of the phenotyping money to genotyping, genotypers say.
- Runs of homozygosity provide a genome landscape picture of inbreeding and genetic history of European autochthonous and commercial pig breeds. Local breeds around Europe have similar genetic structures.