- Multi-perspective evaluation of phytonutrients – Case study on tomato landraces for fresh consumption. Fancy maths proves different tomato varieties taste different.
- Adaptation to the Local Environment by Modifications of the Photoperiod Response in Crops. It’s all down to a few mutations in all crops.
- Evaluation of the SeedCounter, A Mobile Application for Grain Phenotyping. Seems like a lot of work to just be able to measure wheat seeds, but boys will have their toys.
- Indigenous Polynesian Agriculture in Hawaiʻi. Both intensive and extensive.
- How to make a domesticate. It takes a long time, and involves lots of genes.
- Symbiosis limits establishment of legumes outside their native range at a global scale. Non-symbiotic legumes have spread further than symbiotic ones into non-native areas.
- Wheat Landraces Currently Grown in Turkey: Distribution, Diversity, and Use. More than half of morphotypes (59%) lost since 1920 overall, but none in some areas.
- Ecotypic differentiation under farmers’ selection: Molecular insights into the domestication of Pachyrhizus Rich. ex DC. (Fabaceae) in the Peruvian Andes. Separate Amazonian and Andean lineages, and P. tuberosum arising from P. ahipa.
- Crop health and its global impacts on the components of food security. To better understand acute impacts, model systemic ones.
- Climate-Related Local Extinctions Are Already Widespread among Plant and Animal Species. About half of about 1000 species showed local extinction.
- Rethinking the history of common walnut (Juglans regia L.) in Europe: Its origins and human interactions. Expansion from glacial refugia, followed by human exploitation. Compare and contrast with Asia. Or read about the whole thing in AramcoWorld.
- Agrobiodiversity and a sustainable food future. Apparently all you need to do to support the “use of biological diversity in sustainable agricultural and food systems” is to recognize that there are 4 interconnected themes: (1) genetic resources, ecology and evolution; (2) governance policy, institutions and legal agreements; (3) food, nutrition, health and disease; and (4) global change drivers with social ecological interactions.
- Eastern Mediterranean Mobility in the Bronze and Early Iron Ages: Inferences from Ancient DNA of Pigs and Cattle. Anatolia to southeastern Europe and back to the Levant across the Bronze-Iron Age transition. The Sea Peoples had pigs?
- Contribution of improved rice varieties to poverty reduction and food security in sub-Saharan Africa. NERICA adoption increased annual per capita income by US$4 per year from 2000, despite yields going down a bit.
- Farming and the geography of nutrient production for human use: a transdisciplinary analysis. Need to try to maintain production diversity as farm size increases. But let Jess Fanzo explain it better.
Brainfood: Insurance value, Forages/invasives, Chenopod crops, Non-descript goats, Holy grapes, Black maize, Wild rice diversity, Cassava seedlings, Knotweed domestication syndrome, Wild potato use, Farmers/researchers, Winged yam diversity, Genes to ecosystems, Wild carrots
- The Value of Biodiversity as an Insurance Device. So apparently the “Epstein-Zin-Weil specification of the utility function allows us to disentangle the effects of risk aversion and aversion to fluctuations.” Good to know.
- The Invasive Legacy of Forage Grass Introductions into Florida. Sometimes biodiversity is bad for you, Epstein-Zin-Weil specification or not.
- Cultigen Chenopods in the Americas: A Hemispherical Perspective. Why did the North American one not do a quinoa?
- The potential of landscape genomics approach in the characterization of adaptive genetic diversity in indigenous goat genetic resources: A South African perspective. “[N]on-descript indigenous veld goats” no longer.
- Collection and characterization of grapevine genetic resources (Vitis vinifera) in the Holy Land, towards the renewal of ancient winemaking practices. Some of the local varieties could make a decent tipple.
- Genetic studies regarding the control of seed pigmentation of an ancient European pointed maize (Zea mays L.) rich in phlobaphenes: the “Nero Spinoso” from the Camonica valley. But do we really want to promote a landrace as a functional food?
- Genetic diversity patterns in ex situ collections of Oryza officinalis Wall. ex G. Watt revealed by morphological and microsatellite markers. Malesia separates out from SE Asia, and similarities between PNG and Philippines points to long-distance dispersal by birds. Or germplasm collectors.
- Perceptual selection and the unconscious selection of ‘volunteer’ seedlings in clonally propagated crops: an example with African cassava (Manihot esculenta Crantz) using ethnobotany and population genetics. Occasional seedlings are allowed to survive not so much because they look different, but because they look similar, to existing landraces, even though they may be genetically distinct.
- Evolutionary “Bet-Hedgers” under Cultivation: Investigating the Domestication of Erect Knotweed (Polygonum erectum L.) using Growth Experiments. Experimental domestication pretty quickly gets rid of that peskily bet-hedging germination heteromorphism.
- Are We Getting Better at Using Wild Potato Species in Light of New Tools? Not until we move on from conserving populations and start documenting individual plants in depth.
- Crucible of Crop Diversity: Forging Partnership with Farmer Breeders and Innovators for Higher Climate Resilience. Experience of the Honey Bee Network in bringing together farmers and researchers.
- Understanding the genetic diversity and population structure of yam (Dioscorea alata L.) using microsatellite markers. 17 groups among 384 global accessions, reflecting geography, ploidy and morpho-agronomy.
- Harnessing diversity from ecosystems to crops to genes. “…currently, approximately 75% of the genetic diversity of crops may have been lost.” I do like that “may.”
- Multivariate analysis of morphological diversity among closely related Daucus species and subspecies in Tunisia. The revenge of morphology: D. sahariensis, plus 4 subspecies of D. carota.
Nibbles: Celebrity chef, Brazilian meeting & dessert, Citizen experiment, Phenotyping course, Fonio, Milpa, Broccoli nutrients, Biodiversity $$, Soybean history
- Alexis Soyer was apparently the first celebrity chef.
- EMBRAPA gets to grips with crop wild relatives, with a little help from their friends.
- Did they serve brigaidero, though?
- Take part in a crowd-sourced experiment on plant adaptation.
- And then go and find out how the experts do it.
- Will fonio‘s day ever come?
- Celebrating the milpa.
- Gotta eat your broccoli fresh for the full nutrient monty.
- Putting (yet another) value on biodiversity. This one by adding or subtracting a species to a grassland plot and seeing what happens to C sequestration.
- What price soybeans?
Brainfood: Slow Food, Runner bean diversity, Bamboo diversity, Istrian grapes, Smelly cheeses, Wild pseudocereals, Diversity & phenology, VAM diversity, Oases apocalypse, Wild wheat physiology, PepperHub, Bactrian camel diversity, Swiss livestock, CWR conservation, Tree database
- Developing radically-new meanings through the collaboration with radical circles: Slow Food as a platform for envisioning innovative meanings. Companies should collaborate with radicals. Presumably in order to turn them. #resist
- Unraveling agronomic and genetic aspects of runner bean (Phaseolus coccineus L.). At least we know what we don’t know.
- Total leaf crude protein, amino acid composition and elemental content in the USDA-ARS bamboo germplasm collections. If you want to use bamboo as feed, you need to choose among the 100-odd species very carefully.
- The Gene Collection of Autochthonous Wine Grape Varieties at the Institute as a Contribution to the Sustainable Development of Wine Growing and Viticulture in Istria. 3591 seems a hell of a lot, but wow.
- Phage Biodiversity in Artisanal Cheese Wheys Reflects the Complexity of the Fermentation Process. Modern methods kill a lot of phages.
- Setting conservation priorities for Argentina’s pseudocereal crop wild relatives. Go north, young CWR researcher!
- Flowering phenology shifts in response to biodiversity loss. Experimentally decreasing diversity in a California grassland advanced phenology.
- Activity, diversity and function of arbuscular mycorrhizae vary with changes in agricultural management intensity. No-till helps VAM, helps soils.
- Oases in Southern Tunisia: The End or the Renewal of a Clever Human Invention? I’m not hopeful.
- Physiological responses to drought stress in wild relatives of wheat: implications for wheat improvement. 4 species show promise.
- PepperHub, a Pepper Informatics Hub for the chilli pepper research community. Hot off the presses.
- Molecular diversity and phylogenetic analysis of domestic and wild Bactrian camel populations based on the mitochondrial ATP8 and ATP6 genes. The wild species is not the ancestor, and the domesticated species is a geographic mess.
- GenMon-CH: a Web-GIS application for the monitoring of Farm Animal Genetic Resources (FAnGR) in Switzerland. Upload data on your herd or flock, end up with a map of where the breed is most endangered.
- Stealing into the wild: conservation science, plant breeding and the makings of new seed enclosures. Ouch!
- GlobalTreeSearch – the first complete global database of tree species and country distributions. 60,065, about 10% crop wild relatives.
This is what’s threatening crops around the world
Readers with a long memory will remember the Global Crop Loss Survey, which we blogged about here back in November. Just to remind everyone else:
Over a period of three months (November 2016 – January 2017), 1142 responses from 216 respondents in 67 countries were recorded during the Global Crop Loss Survey organized by the Crop Loss Subject Matter Committee of the ISPP [International Congress of Plant Pathology]. This appears to be the first Survey of this kind ever conducted.
Well, some preliminary results are out.
At this stage, a key question concerns the overall representativeness of the information gathered. Across all five crops, experts have reported losses lower than 1% in 15.4% of the cases, between 1 and 5% in 37.3% of the cases, between 5 and 20% in 33.7% of the cases, between 20 and 60% in 11.5% of the cases, and higher than 60% in 2.1% of the cases. A simple aggregate weighted average of these losses, in which loss levels are weighted by their reported frequencies, gives an overall crop loss of 11.7%. This figure would represent the average loss caused by an average disease (or pest), (1) when occurring, and (2) in the absence of any other disease or pest. Although a preliminary result, the estimated average loss is well within the ranges of global or regional crop losses that have been reported in the literature.
The money table is this:
Would be interesting to compare these data with the investment being made in breeding against, and indeed in germplasm evaluation by genebanks for, different threats. Analysis is continuing…