- Conservation priorities for endangered coastal North African Pennisetum glaucum L. landrace populations as inferred from phylogenetic considerations and population structure analysis. In other news, there’s pearl millet in costal Tunisia.
- Is the sky the limit? On the expansion threshold of a species’ range. “…adaptation fails when genetic drift reduces genetic diversity below that required for adaptation to a heterogeneous environment.”
- Soil analysis in discussions of agricultural feasibility for ancient civilizations: A critical review and reanalysis of the data and debate from Chaco Canyon, New Mexico. They grew crops there after all.
- Future warming increases probability of globally synchronized maize production shocks. Summer is coming.
- Early agriculture at the crossroads of China and Southeast Asia: Archaeobotanical evidence and radiocarbon dates from Baiyangcun, Yunnan. Rice, foxtail millet, broomcorn millet, soybeans and Vigna spp were cultivated 2600–2000 BCE.
- Ten‐year assessment of the 100 priority questions for global biodiversity conservation. Mainly freshwater ecosystems, societal structures, and impacts.
- Ancestry of the two subgenomes of maize. Out of Africa…
- Global impact of accelerated plant breeding: Evidence from a meta-analysis on rice breeding. Fancy maths confirms faster is better.
- Understanding root, tuber, and banana seed systems and coordination breakdown: a multi-stakeholder framework. Step one: admit they’re different from true seeds.
- Hindcasting global population densities reveals forces enabling the origin of agriculture. Better conditions led to population increases led to agriculture.
- The effects of landscape patterns on ecosystem services: meta-analyses of landscape services. Landscape complexity is positively associated with ecosystem services.
- Global survey of rice breeders to investigate characteristics and willingness to adopt alternative breeding methods. Willingness to adopt new technology high, actual adoption low. Go figure.
- Identification of rice landraces with promising yield and the associated genomic regions under low nitrogen. Will they adopt this “technology,” I wonder?
- Aligning conservation efforts with resource use around protected areas. Being better off doesn’t necessarily decrease use of tiger reserves.
Brainfood: Rationalizing acquisition, Empowering women, Breadfruit domestication, Rice hybrid sterility, Long-distance crop dispersal, Diversification, African leafy greens, GIAH, Silkworm cryo, Bean in situ
- Molecular markers as a tool for germplasm acquisition to enhance the genetic diversity of a Napier grass (Cenchrus purpureus syn. Pennisetum purpureum) collection. Win-win for the ILRI and Embrapa genebanks.
- Women’s empowerment in agriculture and agricultural productivity: Evidence from rural maize farmer households in western Kenya. 1% increase in women’s empowerment led to a 6-16% increase in maize yields, depending on fanciness of math.
- A transcriptome screen for positive selection in domesticated breadfruit and its wild relatives (Artocarpus spp.). Evidence of selection in 1000 genes.
- A selfish genetic element confers non-Mendelian inheritance in rice. Pollen toxin-antidote genetic system controls hybrid sterility in wild-cultivated crosses.
- Between China and South Asia: A Middle Asian corridor of crop dispersal and agricultural innovation in the Bronze Age. It’s not all demic diffusion.
- Determinants of crop diversification in rice-dominated Sri Lankan agricultural systems. Not everyone can diversify.
- Improving food-system efficiency and environmental conservation using agricultural biodiversity in Busia County: a pilot study. Giving farmers nutritional data increased their cultivation of traditional vegetables, and their income.
- The impacts of farmers’ livelihood endowments on their participation in eco-compensation policies: Globally important agricultural heritage systems case studies from China. Giving farmers money increased their income.
- Conservation of wild silkworm genetic resources through cryopreservation: Standardization of sperm processing. It’s best to recover sperm from the bursa copulatrix and spermatheca of the female moth after mating.
- Short-Term Local Adaptation of Historical Common Bean (Phaseolus vulgaris L.) Varieties and Implications for In Situ Management of Bean Diversity. 3 years of multiplication of heritage varieties in contrasting organic farms leads to genetic changes: it takes a network to truly conserve.
Brainfood: Sustainable Brazil, Epigenetic variation, Global conservation, Rice nutrition, Austronesian societies, Saharan domestication, GM wheat, Smallholders, Bos introgression
- Sustainable diet from the urban Brazilian consumer perspective. Healthiness, basically.
- Comparison of the Relative Potential for Epigenetic and Genetic Variation To Contribute to Trait Stability. Genetic >> epigenetic.
- Global mismatch of policy and research on drivers of biodiversity loss. Except for climate change.
- Carbon dioxide (CO2) levels this century will alter the protein, micronutrients, and vitamin content of rice grains with potential health consequences for the poorest rice-dependent countries. And not in a good way. But some variation among varieties = breeding opportunity?
- Coevolution of landesque capital intensive agriculture and sociopolitical hierarchy. Among Austronesian-speaking societies, no evidence that agricultural intensification drives social complexity; if anything, it’s the other way around.
- Plant behaviour from human imprints and the cultivation of wild cereals in Holocene Sahara. Weediness has been good to humans in the past.
- Gene Flow in Genetically Modified Wheat. Would probably only be a problem within fields.
- How much of the world’s food do smallholders produce? FAO: 70%. New paper: 30-34%.
- Pervasive introgression facilitated domestication and adaptation in the Bos species complex. Miscegenation has been rampant.
Brainfood: Cassava breeding, Teosinte gaps, Arabidopsis and CC, Urban pineapple, Minnesota apples, European CWR, Spiderplant review, British condiments, Yeast diversity, Diversity & productivity
- Toward improving photosynthesis in cassava: Characterizing photosynthetic limitations in four current African cultivars. The landraces are better at photosynthesis than the improved cultivars. Maybe because the aim of producing the latter was pest and disease resistance rather than yield.
- Ecogeography of teosinte. Only 11% in protected areas.
- A map of climate change-driven natural selection in Arabidopsis thaliana. Summer is coming.
- Urban backyards as a new model of pineapple germplasm conservation. Two thirds of citizen scientists did a really good job.
- Identification of unknown apple (Malus × domestica) cultivars demonstrates the impact of local breeding program on cultivar diversity. 330 unknown highly diverse trees in northern Minnesota, 264 unique genotypes, 76 matched to 20 named cultivars from local breeding program at the University of Minnesota, or imported Russian cultivars.
- Development of national crop wild relative conservation strategies in European countries. 30 countries: 13 in preparation stage, 14 with drafts, and 3 not yet started.
- Current knowledge and breeding perspectives for the spider plant (Cleome gynandra L.): a potential for enhanced breeding of the plant in Africa. I actually like the bitterness of the leaves.
- Condiments before Claudius: new plant foods at the Late Iron Age oppidum at Silchester, UK. Benefits of a customs union, I guess.
- Adaptation of S. cerevisiae to Fermented Food Environments Reveals Remarkable Genome Plasticity and the Footprints of Domestication. Genetics linked to lifestyle differences.
- Plant spectral diversity integrates functional and phylogenetic components of biodiversity and predicts ecosystem function. About 50% of variation in productivity in the Cedar Creek biodiversity experiment explained by spectral diversity.
Migrating farmers
So apparently agriculture came into a new area with migrating farmers, rather than as a meme, in Southeast Asia as well as in Europe and South Asia. Or so ancient human DNA from Vietnam shows.
This three-pronged mixture of indigenous hunter-gatherers, early farmers, and a later wave of migrants parallels the prehistory of Europe, also illuminated by ancient DNA in recent years. There, migrating farmers brought agriculture from the Near East to Europe, where they mixed with local hunter-gatherers about 7000 years ago. Then later waves of Bronze Age migrants—in Europe’s case, herders from the Central Asian steppe—moved in and established the population structure scientists see today. (Researchers, including Reich, have also documented a similar pattern in South Asia.)
Always thought that was most likely. People will move before they’ll tell neighbours their secrets.