- Whole-genome landscape of Medicago truncatula symbiotic genes. There’s always something else.
- Genebank genomics highlights the diversity of a global barley collection. IPK’s, that is, and that’s 22,000 strong. Let the GWAS begin. Including for whisky-related traits, of course.
- A polyploid admixed origin of beer yeasts derived from European and Asian wine populations. And beer-related.
- Genetic diversity and population structure of a mini-core subset from the world cowpea (Vigna unguiculata (L.) Walp.) germplasm collection. There are three broadly geographic clusters, and the mini-core is representative of overall diversity, in Africa at least.
- Identification of candidate domestication‐related genes with a systematic survey of loss‐of‐function mutations. Fancy methods lead to doubling of possible domestication genes in soybean to 110.
- Social Valuation of Genebank Activities: Assessing Public Demand for Genetic Resource Conservation in the Czech Republic. Willingness to pay is $9 per sample. But this is unpacked in a guest post by Nik.
- Gene bank scheduling of seed regeneration: Interim report on a long term storage study. Maybe someone can tell me what’s new here?
- Functional phenomics: An emerging field integrating high-throughput phenotyping, physiology, and bioinformatics. Again, what exactly is new here, apart from the word pheme?
- Xanthomonas Wilt of Banana (BXW) in Central Africa: Opportunities, challenges, and pathways for citizen science and ICT-based control and prevention strategies. Technology is not enough.
- Beyond individuals: Toward a “distributed” approach to farmer decision‐making behavior. And even if it were enough, adoption is a whole ‘nother thing…
- Dietary Diversity: Implications for Obesity Prevention in Adult Populations: A Science Advisory From the American Heart Association. As currently defined, dietary diversity does not necessarily mean healthy eating.
- Modern Wheat Varieties as a Driver of the Degradation of Spanish Rainfed Mediterranean Agroecosystems throughout the 20th Century. Under traditional organic management, older varieties have similar yields to modern varieties, plus more biomass both above and below ground, making for better soils.
- Peculiarly pleasant weather for US maize. Adaptation to warmer climates accounts for 28% of yield increases since 1981. It won’t last, see below.
- Increase in crop losses to insect pests in a warming climate. Losses to insects will increase by 10 to 25% per degree Celsius of warming for wheat, rice, and maize.
- Metabolite variation in the lettuce gene pool: towards healthier crop varieties and food. Tasty lettuce is possible.
- Genome sequences of two diploid wild relatives of cultivated sweetpotato reveal targets for genetic improvement. Carotenoid biosynthesis alleles identified.
- Climate change stimulated agricultural innovation and exchange across Asia. Climate models suggest that about 3,500 years ago Central Asia and Tibet cooled, and 2,000 years ago China followed suit, in both cases leading to shifts in crops.
- Intensification for redesigned and sustainable agricultural systems. Depends on building social capital first.
Brainfood: Global taro, Gender gap, Eschatology, Cacao domestication double, Soybean epigenetics, Rice domestication, Domestication space, Botanic gardens, Agrarian care, Open seeds, Sustainable nutrition, Broadbean breeding, Resistant beans, Yam environments, Trade networks
- Conserving and Sharing Taro Genetic Resources for the Benefit of Global Taro Cultivation: A Core Contribution of the Centre for Pacific Crops and Trees. The first line of defence against Taro Leaf Blight, among other things.
- Female access to fertile land and other inputs in Zambia: why women get lower yields. Because they’re stuck with the poorer soils. I’m assuming there was some control for maize variety, but the damn thing is behind a paywall. LATER: Yeah, they controlled for hybrid vs open pollinated variety.
- Towards a dialogue of sustainable agriculture and end-times theology in the United States: insights from the historical ecology of nineteenth century millennial communes. In other news, it has become necessary to reconcile the apocalypse with sustainability.
- Population genomic analyses of the chocolate tree, Theobroma cacao L., provide insights into its domestication process. Domestication was both good and bad.
- The use and domestication of Theobroma cacao during the mid-Holocene in the upper Amazon. Archaeology says domestication in western Amazon in line with above (somewhere in Ecuador?), but earlier than thought.
- DNA methylation footprints during soybean domestication and improvement. Differentially methylated regions are particularly genetically diverse.
- Major domestication-related phenotypes in indica rice are due to loss of miRNA-mediated laccase silencing. Not so much the genes, as their regulation.
- Phylogenetic patterns and phenotypic profiles of the species of plants and mammals farmed for food. Plants and animals are different.
- Botanic Gardens Complement Agricultural Gene Bank in Collecting and Conserving Plant Genetic Diversity. 6000 taxa in 68 crop genera are in botanic gardens. Check out the rest of the special edition of Biopreservation and Biobanking on agricultural genebanks.
- Plants: Crop diversity pre‐breeding technologies as agrarian care co‐opted? Pre-breeding ignores farmers’ knowledge.
- The Open Source Seed Licence: A novel approach to safeguarding access to plant germplasm. Seeds will find a way.
- When too much isn’t enough: Does current food production meet global nutritional needs? No: grow more food and vegetables.
- Breeding and genomics status in faba bean (Vicia faba). Plenty of diversity to be still used. Pass the chianti.
- QTL Mapping of Resistance to Bean Weevil in Common Bean. Based on a cross between the susceptible Zambian landrace Solwezi and the resistant breeding line AO-1012-29-3-3A. But which Solwezi? I hope there’s a DOI in the actual paper for those who get through the paywall.
- Spatial Multivariate Cluster Analysis for Defining Target Population of Environments in West Africa for Yam Breeding. 7 mega-environments identified, but what I want to know is if any are under-represented in terms of material in the genebank.
- Economic shifts in agricultural production and trade due to climate change. Under mitigation scenarios trade networks for agricultural commodities get more distributed, and possibly therefore more stable. So that’s another reason to mitigate C emissions, you know, apart from saving the planet.
Nibbles: Protected areas, Waley dance, Edible cricket, Plant & people, Open-pollinated seed, Apple origins, Horticultural tree genomics
- Protected Planet report: The Website.
- In praise of cows.
- New edible insect turns up.
- Telling the stories of humanity’s relationship with plants.
- The beauty of open pollination.
- You’d have thought everyone would know where the apple comes from by now.
- The avocado, on the other hand…
Not so plain vanilla
Speaking of vanilla, as I was elsewhere … A very odd story caught my eye.
Bronze Age people in Israel were the first known vanilla users
Obvious clickbait, right. I mean, vanilla came originally from Mexico, as any fule kno. The photo, of highly ordinary vanilla pods in a very modern plastic basket confirmed my suspicions. The caption:
Although long considered a product that originated in ancient Mexico, vanilla — which is extracted from beans such as these — was used by Middle Easterners around 3,600 years ago, a new study finds.
Well dodgy, but not exactly wrong. Not exactly.
My first thought was that maybe the archaeologists had fooled themselves. After all, pure vanillin is a byproduct of the degeneration of lignin. Maybe a bit of decomposing wood contaminated the juglets in which the stuff was found. But no. The truth is even more interesting, and hidden deep in Science News’ account.
For a start, the juglets also contained traces of olive oil. And while plain vanilla usually signifies the species Vanilla planifolia, there are, in fact more than 100 different species around the world. Vanessa Linares, the archaeologist who identified the compounds, refers to “the vanilla orchid” in an abstract of her research. In fact, she compared the compounds she found with those produced by other species of Vanilla, and suggests that it could have come from one of three different species.
After a close study of vanilla orchid plants, three different species were identified as possible sources for vanilla exploitation in antiquity: V. polylepsis [sic] Summerh (central east Africa), V. albidia Blume (India), and V. abundiflora J.J. Sm. (southeast Asia).
I think, under the circumstances, I might have written “a vanilla orchid”.
Anyway, parsimony suggests (to me) it was V. polylepis from east Africa which, although apparently showy and widespread, was not described formally until 1951. If it did travel from east Africa to the Levant, that is impressive enough. Even more so is that the people who traded it 4000 years ago knew how to undertake the painstaking fermentation that is the secret to the odour and flavour of natural vanilla. The pods barely smell, and certainly not of vanilla.
So yes, not quite what Science News was trying to sell, but pretty interesting all the same. And a project for some enterprising breeder in east Africa: Domesticate your local vanilla.
Brainfood: Makapuno, Middle Eastern dogs, Date palm origins, Speedy NUS, Red apples, Apple characterization, Phenotyping double, Assisted migration & pathology, Soya diversity, Sustainable intensification, Seed research, Cucurbita history, Potato value chains, Livestock ES
- Towards the Understanding of Important Coconut Endosperm Phenotypes: Is there an Epigenetic Control? Maybe.
- Dogs accompanied humans during the Neolithic expansion into Europe. All part of the Fertile Crescent package.
- Genomic Insights into Date Palm Origins. Domesticated in the Gulf region, but in a more complicated way than used to be thought.
- Speed breeding orphan crops. Worth the extra cost.
- Malus sieversii: the origin, flavonoid synthesis mechanism, and breeding of red-skinned and red-fleshed apples. Not just good for pest and disease resistance.
- Can you make morphometrics work when you know the right answer? Pick and mix approaches for apple identification. Good job they differ in colour too.
- Systematic establishment of colour descriptor states through image-based phenotyping. Doesn’t work for brown, though.
- High-throughput method for ear phenotyping and kernel weight estimation in maize using ear digital imaging. And the colour doesn’t matter.
- Amplifying plant disease risk through assisted migration. Making AM great.
- Characterization of a diverse USDA collection of wild soybean (Glycine soja Siebold & Zucc.) accessions and subsequent mapping for seed composition and agronomic traits in a RIL population. One of the parents of the RIL population was a wild accession.
- Plant Responses to an Integrated Cropping System Designed to Maintain Yield Whilst Enhancing Soil Properties and Biodiversity. So far, so good.
- Seed longevity phenotyping: recommendations on research methodology. Ok, now there’s no excuse.
Oh, well, except for the paywall. - Evolutionary and domestication history of Cucurbita (pumpkin and squash) species inferred from 44 nuclear loci. All 6 crop taxa in one clade, and some novel relationships with wild species.
- Value Chain Development and the Agrarian Question: Actor Perspectives on Native Potato Production in the Highlands of Peru. Difficult to penetrate the socio-economic jargon, especially without access to the full text, but I think it’s saying that to understand why some value chains for native potatoes work and others don’t, you have to understand that different players want different things. Which seems kinda obvious so I probably don’t have that right.
- Perception of livestock ecosystem services in grazing areas. Not all bad.