- Cannabis Domestication, Breeding History, Present-day Genetic Diversity, and Future Prospects. The weed is in trouble, man. Just one of the papers in a very special issue of Critical Reviews in Plant Sciences. And for a historical perspective…
- Genomic analyses of primitive, wild and cultivated citrus provide insights into asexual reproduction. Apomixis is down to a “miniature inverted-repeat transposable element insertion in the promoter region of CitRWP.”
- Automated cropland mapping of continental Africa using Google Earth Engine cloud computing. Croplands increased by 1 Mha/yr between 2003 and 2014.
- Genetic diversity and population structure of native maize populations in Latin America and the Caribbean. Three groups: Mexico + southern S. America, lowland Mesoamerica + Caribbean, Andes.
- Phylogeography of the wild and cultivated stimulant plant qat (Catha edulis, Celastraceae) in areas of historical cultivation. Centres of origin in Kenya and Ethiopia, with limited movement between the two, but some hybrids in N. Kenya; the Yemeni stuff came from Ethiopia.
- Process-based modelling shows how climate and demography shape language diversity. If you assume human groups split after reaching a certain population size, and rainfall limits population density, you can predict language diversity in Australia.
- Volatile Compound Profiles of Malus baccata and Malus prunifolia Wild Apple Fruit. Look at the esters.
- Genetic diversity, population structure and association analysis in coconut (Cocos nucifera L.) germplasm using SSR markers. I can’t see much new here. Please, coconut experts, tell me what I’m missing.
- Opportunities for Napier Grass (Pennisetum purpureum) Improvement Using Molecular Genetics. Could do better.
- Heterogeneity as the Basis for Rangeland Management. Gotta mix it up.
- Analysis of genetic diversity of Chinese dairy goats via microsatellite markers. The locally developed breeds are all derived from a single European breed.
- Variation in bean morphology and biochemical composition measured in different genetic groups of arabica coffee (Coffea arabica L.). You can’t use morphology to predict taste.
- Breeding for the improvement of indigenous chickens of Bangladesh: evaluation of performance of first generation of indigenous chicken. I don’t understand this much, but I liked the names of the genotypes: Naked Neck, Hilly and Non-descript Desi.
- Persistence of endophytic fungi in cultivars of Lolium perenne grown from seeds stored for 22 years. It’s a record!
Targeting germplasm in an age of climate change
Let me expand a little on yesterdays’s teaser about the Seedlot Selection Tool.
Say you have an accession of maize, for example, collected 20 years ago, for example, somewhere in the middle the NW zone of Mexico defined by Orozco-Ramírez, Perales & Hijmans (2017), for example.
Say that you’d like to know where you could grow that material 20 years from now.
Say you have a few minutes to learn how to use the USDA’s Seedlot Selection Tool.
This is what you would get, more or less, depending on the details.
The blue dot is your collecting site, the red bits are the places where that material will be adapted in 2040. And you can run the thing the other way around too. That is, given that you want to grow something in 2040 where that blue dot is now, where would you have to have collected it in the past?
The Seedlot Selection Tool seems to be aimed primarily at forest and landscape managers, but I see no reason why it couldn’t be used in agricultural applications too, as above, subject to the same provisos.
The Seedlot Selection Tool (SST) is a web-based mapping application designed to help natural resource managers match seedlots with planting sites based on climatic information. The SST can be used to map current climates or future climates based on selected climate change scenarios. It is tailored for matching seedlots and planting sites, but can be used by anyone interested in mapping climates defined by temperature and water availability. The SST is most valuable as a planning and educational tool because of the uncertainty associated with climate interpolation models and climate change projections. The SST allows the user to control many input parameters, and can be customized for the management practices, climate change assumptions, and risk tolerance of the user.
Would love to get my hands on a global version.
Deconstructing restoration
Just to remind ourselves that conserved seeds are not just there to be used in breeding, let us “deconstruct symbolic promises of fertility and rebirth carried by domesticated seeds and look at the reality of the seeds that have never been at our service,” think as holistically as we can, and consider taking the MOOC on “Landscape Restoration for Sustainable Development: a Business Approach.” And, if we live in the western bit of North America, let us play around with the USDA’s Seedlot Selection Tool too.
Nibbles: Aeroponic yams, Ancient crops, Kumara, Informal food vendors, Foxy, Salumi, Corn whiskey, Doomed cassava
- Yams up in the air, but in a good way.
- Yet another couple of things on how “ancient crops” will save us all. All crops are ancient. Well, except the kiwi.
- Lovely little film on a lovely sweet-potato-growing New Zealand couple to make up for that uncalled-for dig at the kiwi. Made my day.
- Engage with kiosk holders, don’t hassle them.
- Review of a book on the quixotic attempt to resynthesize the dog. Why bother?
- More Italian salami than you can shake a stick at.
- Might go well with some artisanal Mexican corn whiskey.
- Cassava is “pointed in the direction of extinction.” Thank goodness for genebanks, eh?
Brainfood: Dope diversity, Potato chips, Conservation costing, Island breeding systems, Indus civilization cereals, Drone phenotyping, Wild rice in Asia, Wild rice & Native Americans, Pearl millet temperature, Climate change & fruit/veg
- Cannabis Domestication, Breeding History, Present-day Genetic Diversity, and Future Prospects. The traditional landraces are being contaminated and need urgent collection and evaluation by dedicated professionals.
- Cold sweetening diversity in Andean potato germplasm from Argentina. 5 out of 48 Andigena landraces make good chips.
- Considering cost alongside the effectiveness of management in evidence-based conservation: A systematic reporting protocol. Here comes the metadata. No excuse now.
- Self-compatibility is over-represented on islands. 66% vs 41% in Asteraceae, Brassicaceae and Solanaceae. Any crop wild relatives in the list?
- Cereals, calories and change: exploring approaches to quantification in Indus archaeobotany. Millet may not have been as important as is generally thought.
- High-Throughput Phenotyping of Sorghum Plant Height Using an Unmanned Aerial Vehicle and Its Application to Genomic Prediction Modeling. A near-infrared, green and blue (NIR-GB) camera on a drone gives pretty good results compared to a person with a tape measure, and is much more fun.
- Asian wild rice is a hybrid swarm with extensive gene flow and feralization from domesticated rice. No such thing as completely wild Asian rice.
- The dispute over wild rice: an investigation of treaty agreements and Ojibwe food sovereignty. Not wild rice at all, but what’s been happening to it might be a violation of the White Pine Treaty with the Ojibwe.
- Quantifying pearl millet response to high temperature stress: thresholds, sensitive stages, genetic variability and relative sensitivity of pollen and pistil. The problem is the pistils.
- Effect of environmental change on yield and quality of fruits and vegetables: two systematic reviews and projections of possible health effects. Bad for yield, good for nutritional quality.