- Courtesy of Bioversity, useful summary of agricultural biodiversity events at the CBD COP, starting in a few days.
- The USDA National Plant Germplasm System, justified.
- The ancient symbolism of celery. Spoiler alert: death.
- A breeding professor calls for a major change in breeding. Spoiler alert: productivity is not enough.
- What’s the next açaí? And will it save the Amazon?
- Saving threatened species. Spoiler alert: seeds are not enough.
- 9000 years of maize history, decoded.
- The Access to Seeds Index 2019 report for South and Southeast Asia is out. Spoiler alert: I feel a guest post coming on.
- UK supermarket to stock salsify.
Brainfood: Conserving rice, Cypriot olives, Bambara groundnut bioactives, Chinese spuds, Ancient pastoralism, Epigenetics, Diverse rice systems, Detecting evolution, CWR & pollution, VAM, Bacterial taxonomy
- Securing Diversity for Food Security: The Case of Conservation and Use of Rice Genetic Resources. Great achievements, but “… 95% of the rice genepool remains untapped and unexploited in rice improvement.”
- Characterization and Identification of Indigenous Olive Germplasm from Cyprus Using Morphological and Simple Sequence Repeat Markers. 125 trees, 32 accessions, 16 genotypes, 3 groups.
- Quantification of Selected Anti-nutrients and Bioactive Compounds in African Bambara Groundnut (Vigna subterranea (L.) Verdc.). Nothing to worry about, but if you insist on worrying, try the cream-coloured ones.
- DNA Fingerprinting and Genetic Diversity Analysis with Simple Sequence Repeat Markers of 217 Potato Cultivars (Solanum tuberosum L.) in China. Cultivars released since 1950 have a narrow genetic base.
- Pastoralism may have delayed the end of the green Sahara. What have pastoralists ever done for us?
- Epigenetic Diversity and Application to Breeding. Some epigenetic differences can be inherited independently of genetic differences. But how to use it?
- Complex rice systems to improve rice yield and yield stability in the face of variable weather conditions. The more azolla, fish and ducks the better.
- Can plants evolve to meet a changing climate? Yes, and we can detect it: the potential of field experimental evolution studies.
- Wheat’s wild relatives vary in their response to nitrogen and ozone. In situ populations may be at risk.
- Little evidence that farmers should consider abundance or diversity of arbuscular mycorrhizal fungi when managing crops. One less thing to worry about? Ok, one fewer thing to worry about.
- Exclusivity offers a sound yet practical species criterion for bacteria despite abundant gene flow. Taxa do exist if you take the whole genome into account.
Nibbles: ITPGRFA, CIMMYT, VIR, Livestock & CC, Vesuvius, Apple pie, Biobanking
- The Plant Treaty tries to enhance itself: the story so far.
- CIMMYT gets a podcast. Here’s one on blue maize.
- The Vavilov collection put to good use. Again.
- “Cow farts cause more climate change than cars.” Not really. Here comes the science, by way of a Twitter thread, of all things.
- The Pompeii eruption: August, or October? Here comes the archaeobotany, among other things, by way of a Twitter thread, of all things.
- It was World Apple Day or somesuch, so here’s two canonical feel-good heirloom apple stories.
- Fancy an open-access special issue of Biopreservation and Biobanking? Too nerdy? It’s on agricultural genebanks… Yeah, I thought you might.
Brainfood: Wild palm, Yield trends, Indigenous veggies double, Old goat grass, Saline soy, Carob history, Pesticidal plants, Rapeseed diversity, Livestock positives, Domestication syndrome, Kiwifruit evolution, Forest diversity
- Genetic structure of the Canarian palm tree (Phoenix canariensis) at the island scale: does the “island within islands” concept apply to species with high colonization abilities? High dispersal ability doesn’t always lead to high connectivity among populations.
- Uncertainties of potentials and recent changes in global yields of major crops resulting from census- and satellite-based yield datasets at multiple resolutions. Average overall annual yield increases of about 1.5% for maize, rice, wheat and soybean for 1981 to 2008 are uncertain and probably not sufficient.
- Indigenous underutilized vegetables for food and nutritional security in an island ecosystem. People in the the Andaman and Nicobar Islands eat a lot of different vegetables. Interestingly, most are perennial and a quarter are wild.
- Knowledge Loss and Change Between 2002 and 2017—a Revisit of Plant Use of the Maasai of Sekenani Valley, Maasai Mara, Kenya. But for how long will the above be true?
- Use of grass seed resources c.31 ka by modern humans at the Haua Fteah cave, northeast Libya. Including wild wheat relative(s).
- Soybean PI 675847 A as a new source of salt tolerance. But it can’t be the only one, surely?
- The carob tree at the crossroad of domestication center and refugia hypotheses. Out of the west, surprisingly.
- Pesticidal Plant Extracts Improve Yield and Reduce Insect Pests on Legume Crops Without Harming Beneficial Arthropods. Worth a try.
- Genome-wide selection footprints and deleterious variations in young Asian allotetraploid rapeseed. Asian rapeseed derived from European, diverged, introgressed, split into 2 groups.
- Essential amino acids: master regulators of nutrition and environmental footprint? If you take essential amino acids into account, livestock production doesn’t seem such a bad idea after all.
- Parallel selection on a dormancy gene during domestication of crops from multiple families. Cloned soybean dormancy gene also showed evidence of selection during domestication in rice and tomato.
- Two Likely Auto-Tetraploidization Events Shaped Kiwifruit Genome and Contributed to Establishment of the Actinidiaceae Family. And you can thank them for the high vitamin C content.
- Hydraulic diversity of forests regulates ecosystem resilience during drought. More diverse forests better at coping with dry spells.
Brainfood: Yak diversity, Wheat pre-breeding, Gene conservation, Genome conservation, Wild lentils, Biodiversity definition, Conservation reviews, Bananas treble, Cotton diversity, Pollinator health, Aurochs DNA, USDA cucumbers, Physalis editing, Tomato re-domestication
- Identification and diversity of Y‐chromosome haplotypes in Qinghai yak populations. 2 paternal lineages but weak genetic structure among the 9 populations and 3 breeds.
- Development and characterization of Triticum turgidum–Aegilops umbellulata amphidiploids. A bridge to bread wheat.
- Variation in total root length and root diameter of wild and cultivated lentil grown under drought and re-watered conditions. Some wild species have longer total root length under drought stress than crops. No word on whether bridges needed.
- The Peril of Gene-Targeted Conservation. Only warranted when said targeted genes are important for viability and have large phenotypic effects. Suspect crop breeders (see above) may beg to differ.
- Conservation of biodiversity in the genomics era. Need to target the whole genome, I guess.
- “What Matters Is Species Richness” — High School Students’ Understanding of the Components of Biodiversity. Must try harder.
- What Conservation Does. The right things, more or less, and not at all badly, so stop complaining.
- Absence of evidence for the conservation outcomes of systematic conservation planning around the globe: a systematic map. It’s not evidence of absence of conservation outcomes, but still. Maybe should get together with the above?
- East African diploid and triploid bananas: a genetic complex transported from South-East Asia. All introduced by Austronesian people, probably via Madagascar, but no longer to be found in Asia (much).
- Molecular and Cytogenetic Study of East African Highland Banana. Focuses on one of the 4 groups discussed in the above (Mutika). All derived from maybe a single hybrid clone.
- Sources of resistance to Xanthomonas campestris pv. musacearum, the causal agent of banana Xanthomonas wilt. Why bother with the above, you ask?
- Genetic diversity of day-neutral converted landrace Gossypium hirsutum L. accessions. Eastern and western hemisphere groups, with US varieties closer to the eastern.
- Crop Domestication Alters Floral Reward Chemistry With Potential Consequences for Pollinator Health. In highbush blueberry, domestication has decreased the chemical diversity of nectar and pollen, possibly increasing infection by bee gut pathogens.
- Ancient DNA analysis of Scandinavian medieval drinking horns and the horn of the last aurochs bull. Aurochs interbred with domestic cattle way back. In other news, you can extract aurochs DNA from medieval Scandinavian drinking horns.
- The USDA cucumber (Cucumis sativus L.) collection: genetic diversity, population structure, genome-wide association studies, and core collection development. Three groups, more or less: India, E. Asia, and everything else. A third of 1200 accessions recovers 96% of variation.
- Rapid improvement of domestication traits in an orphan crop by genome editing. Tomato orthologues in groundcherry mutated for more fruits and better plant architecture.
- Domestication of wild tomato is accelerated by genome editing. Or you can do it with the actual tomato genes. As suggested a couple of years ago.