- To diversify or not to diversify, that is the question. Pursuing agricultural development for smallholder farmers in marginal areas of Ghana. Diversify.
- Improving grain yield, stress resilience and quality of bread wheat using large-scale genomics. A genotype –> phenotype map at last. I guess that means breeders are superfluous.
- The earliest recorded tomato in Britain, in Wales. In 1590, no less.
- Biotechnology of the sweetpotato: ensuring global food and nutrition security in the face of climate change. A whole special issue. Our troubles are over.
- Probabilistic global maps of crop-specific areas from 1961 to 2014. A new, different, cooler algorithm provides somewhat different results to older, less cool algorithms.
- Potential adaptive strategies for 29 sub-Saharan crops under future climate change. Climatic conditions not currently experienced by these crops will spread, but CWRs and diversity from outside Africa might help.
- Trans Situ Conservation of Crop Wild Relatives. Just means properly integrated in and ex situ.
- Criar y Dejarse Criar: Trans-Situ Crop Conservation and Indigenous Landscape Management through a Network of Global Food Neighborhoods. See what it means? Scaling up the Parque de la Papa.
- Harnessing global fisheries to tackle micronutrient deficiencies. Small fish from the tropics could be really good for nutrition in some countries. Namibia, I’m looking at you.
- Artificial seed aging reveals the invisible fraction: Implications for evolution experiments using the resurrection approach. Store your seeds properly.
- Status of Rice (Oryza sativa L.) Genepool Collected from Western Ghats Region of India: Gap Analysis and Diversity Distribution Mapping using GIS Tools. Out of 678 rice landraces from this region, 43 have been used in crop improvement.
- Advancing an Integrative Framework to Evaluate Sustainability in National Dietary Guidelines. In 32 sub-dimensions, no less. Important.
- Assembly and characterisation of a unique onion diversity set identifies resistance to Fusarium basal rot and improved seedling vigour. Group according to local daylength.
- Australian wild rice populations: a key resource for global food security. Because they’ve been isolated from the crop.
- Novel method for evaluation of anaerobic germination in rice and its application to diverse genetic collections. No word on whether it’s applicable to Aussie wild species, but I bet it is.
Nibbles: Agricultural transition, Cassava beer, Lost Feast, African seeds, Plants course, Bitters, Rangeland management, Prize
- Rubber brings rage in India.
- Cassava brings beer in Brazil.
- Book on how foods go extinct.
- The Economist discovers good seeds.
- Why Study Plants? See above.
- The biodiverse botany of bitters.
- Rangeland management in the Great Plains: a timeline.
- I know, what we need is a Food System Vision Prize.
Brainfood: Old seeds, Anthropocene, Apple polyphenols, Maize adaptation, Maize adoption, Biodiversity designs, Early millet, Asian populations, Japanese catalogue, Legacy data, PVP, Synthetic wheat double
- Unlocking the secrets of extreme seed longevity: the relevance of historic botanical collections to modern research. Claims that very old seeds are still alive are probably exaggerated. Except from genebanks, of course.
- Archaeological assessment reveals Earth’s early transformation through land use. We had transformed the world globally by 3000 years ago.
- Genome-wide association studies in apple reveal loci of large effect controlling apple polyphenols. It should be surprisingly easy to breed really healthy apples. No word on adaptation.
- Identifying loci with breeding potential across temperate and tropical adaptation via EigenGWAS and EnvGWAS. 13 genomic regions under ecological selection in maize. No word on nutrition.
- The maize frontier in rural South India: Exploring the everyday dynamics of the contemporary food regime. Adoption is being driven both top-down and bottom-up.
- Simple study designs in ecology produce inaccurate estimates of biodiversity responses. Complexity in experimental design is worth it.
- Early integration of pastoralism and millet cultivation in Bronze Age Eurasia. In southeastern Kazakhstan, ca 2700 BC, mobile pastoralists winter foddered their sheep and goat with the region’s earliest cultivated millet, which came from China.
- The formation of human populations in South and Central Asia. People and crops moved together, both east and west. Oh, and are the above the Yanmaya?
- Lost Grains and Forgotten Vegetables from Japan: the Seikei Zusetsu Agricultural Catalog (1793–1804). Fewer than half of the 109 species illustrated are still grown in Japan.
- Soil legacy data rescue via GlobalSoilMap and other international and national initiatives. Should do the same with genebank data too.
- Insights into deployment of DNA markers in plant variety protection and registration. Will increasingly be used in support of DUS, apparently.
- Genetic Contribution of Synthetic Hexaploid Wheat to CIMMYT’s Spring Bread Wheat Breeding Germplasm. 20% of the lines in international yield trials were synthetic-derived with an average genetic contribution from the D genome wild relative of 15.6%.
- Genetic diversity and population structure analysis of synthetic and bread wheat accessions in Western Siberia. The Japanese synthetics are something else.
A very special issue of Plants in the making
Our friends Andreas Ebert and Jan Engels are editing a Special Issue of the journal Plants on “Plant Biodiversity and Genetic Resources.”
Dear Colleagues,
The foundation of the world food supply is based on thousands of years of crop selection, and improvement carried out on wild and semi-domesticated species, crop wild relatives and landraces, giving rise to present-day cultivated crop varieties. The ‘wild’ genes of crop wild relatives and landraces strongly influence agronomic characteristics such as phenology, growing seasons, sensitivity to inputs (i.e., fertilizer and water), resistance to diseases and insect pests and tolerance to heat, drought, and salinity. The availability of such genetic diversity is critical for plant breeding, especially with climate change. Moreover, the genetic diversity within and between species gives rise to a multitude of characteristics that enable plants, animals, and microbes to fulfill different roles in the environment and to adapt to changing conditions, as this diversity will ensure the continued functioning of ecosystems and the provisioning of ecosystem services.
Current over-reliance on a handful of major staple crops has inherent agronomic, ecological, nutritional, and economic risks and is unsustainable in the long run. The wider use of underutilized minor crops provides more options to build temporal and spatial heterogeneity into uniform cropping systems helping to maintain and enhance efficiency and resilience of agroecosystems and to enhance dietary diversity and combat malnutrition.
Production systems and the underlying genetic resources including crop wild relatives that are found in cultivated and protected land, and especially in natural ecosystems such as forests (ranging from tropical to temperate), are severely threatened due to drastic land-use changes, over-exploitation of resources, and man-made and natural disasters. Climate change is already affecting the distribution of plants and associated species, their population sizes, and life cycles. Efficient adaptation strategies for a changing climate require, among other measures, the effective and rational conservation and sustainable utilization of the remaining (in particular agricultural) biodiversity, both in situ as well as in genebanks and access to genetic resources of crops and their wild relatives by plant breeders.
To develop and grow ‘climate-smart’ crop varieties for sustainable production systems, farmers and plant breeders worldwide are in dire need of access to a wide range of traits and genes, often found in plant genetic resources located far away from major production areas. This raises a multitude of policy issues and concerns regarding access and benefit-sharing, ownership, intellectual property rights, and patents imposed on PGRFA and breeding lines, as well as implications of transgenic crops for biodiversity and sustainable agriculture.
Therefore, in this Special Issue on plant biodiversity and genetic resources, we invite articles (original research papers, reviews, perspectives, opinions, and modeling approaches) that address the above-mentioned issues and are guided by the keywords provided for this topic.
Dr. Andreas W. Ebert
Dr. Johannes M. M. Engels
Guest Editors
Deadline for manuscript submission is 29 February 2020.
Brainfood: Clean vines, Wild maize diversity, Heirloom beans, Domestication, Cryptic variation, African rice evaluation, Fall armyworm, Food prices, Human pathogens, Farm biodiversity, Microbiome, Infographics, Tea diversity, Mekong dietary diversity, Women & NUS
- Efficiency of insect‐proof net tunnels in reducing virus‐related seed degeneration in sweet potato. “Seed” meaning vines. And yes, those tunnels work.
- Divergence with gene flow is driven by local adaptation to temperature and soil phosphorus concentration in teosinte subspecies (Zea mays parviglumis and Zea mays mexicana). Genetic differences between the two subspecies is maintained by adaptive divergence despite gene flow.
- Agronomic Performance and Nitrogen Fixation of Heirloom and Conventional Dry Bean Varieties Under Low-Nitrogen Field Conditions. Not much difference, which is actually interesting.
- Evolutionary Insights into the Nature of Plant Domestication. It’s a long process, in which natural selection and interspecific hybridization play an important part, involving many of the same genes across species.
- Cryptic genetic variation accelerates evolution by opening access to diverse adaptive peaks. Add to the above? Ah no, only in bacteria so far.
- Screening African rice (Oryza glaberrima) for tolerance to abiotic stresses: III Flooding. From a collection of >2,000 to 11 better than Asian rice. You’re wondering about I and II, aren’t you?
- Understanding the factors influencing fall armyworm (Spodoptera frugiperda J.E. Smith) damage in African smallholder maize fields and quantifying its impact on yield. A case study in Eastern Zimbabwe. Differences among maize varieties, but weeding, tillage and intercropping also have an effect. Have yield losses been overestimated, though? Maybe.
- Natural selection contributed to immunological differences between hunter-gatherers and agriculturalists. But the evidence seems to be that the pathogen burden was higher for the hunter-gatherers, which goes counter to everything we’ve been taught by Jared Diamond.
- Increasing crop heterogeneity enhances multitrophic diversity across agricultural regions. More crops means more biodiversity in general.
- More Than the Sum of Its Parts: Microbiome Biodiversity as a Driver of Plant Growth and Soil Health. More microbes mean better plant growth.
- Science–graphic art partnerships to increase research impact. Free your inner artist.
- Genetic diversity, linkage disequilibrium, and population structure analysis of the tea plant (Camellia sinensis) from an origin center, Guizhou plateau, using genome-wide SNPs developed by genotyping-by-sequencing. Four groups: pure wild type, admixed wild type, ancient landraces and modern landraces.
- The Relative Caloric Prices of Healthy and Unhealthy Foods Differ Systematically across Income Levels and Continents. …and at least partially explain differences in undernutrition and overweight in adults. Here’s the infographic.
- Household-level drivers of dietary diversity in transitioning agricultural systems: Evidence from the Greater Mekong Subregion. It’s complicated and context-specific, but dietary diversity seems to generally increase with agricultural “development,” i.e. market orientation, specialisation, and intensification. Somewhat surprising? I’ve lost track, frankly.
- Potential role of neglected and underutilized plant species in improving women’s empowerment and nutrition in areas of sub-Saharan Africa. So is increasing cultivation of orphan crops a driver or a consequence of agricultural development? See what I mean? Anyway, useful review.