- On-Farm Crop Species Richness Is Associated with Household Diet Diversity and Quality in Subsistence- and Market-Oriented Farming Households in Malawi. Correlation is not causation, but one gets one’s victories where one can.
- Agroecology and healthy food systems in semi-humid tropical Africa: Participatory research with vulnerable farming households in Malawi. See above.
- Diversity and Evolution of Salt Tolerance in the Genus Vigna. Salt tolerance has evolved at least 4 times in the genus among coastal species.
- An ethnobotanical study of traditional rice landraces (Oryza sativa L.) used for medical treatment in selected local communities of the Philippines. 19 landraces are used to treat a variety of nutritional and other complaints.
- Is it time for a socio-ecological revolution in agriculture? Sustainable intensification is often neither.
- Core Collections of Potato (Solanum) Species Native to the USA. Only two species, but more collecting needed, though one population of one of the species captures 82% of total AFLP bands. In other news, people still using AFLPs.
- Genetic Diversity and Relationship of Ethiopian Potato Varieties to Germplasm from North America, Europe and the International Potato Center. 15 unique Ethiopian genotypes reflects 2 distinct introductions from Europe.
- Genetic Diversity and Population Structure of Rice Varieties Cultivated in Temperate Regions. 217 varieties from temperate regions show much diversity, structured by grain type and origin.
- Genetic Vulnerability and the Relationship of Commercial Germplasms of Maize in Brazil with the Nested Association Mapping Parents. Brazilian commercial maize hybrids are pretty diverse, but show little overlap with the diversity of the NAM parents.
- Evaluation of resistance to Phytophthora sojae in soybean mini core collections using an improved assay system. Resistant materials made up about a third of the world mini-core, but <10% of the Japanese mini-core.
- Genetic Diversity of Chinese and Global Pea (Pisum sativum L.) Collections. The USDA global core was more diverse than the Chinese core, which was pretty diverse anyway.
- Population viability analysis on a native Danish cattle breed. Jutland cattle has 122 years if nothing is done, but things can be done.
The perils of reduced diversity: animal edition
To the standard hymn-sheet of crop failures associated with genetic erosion we can now add an example from livestock. A mutation in a single Holstein bull — Pawnee Farm Arlinda Chief, who happens to father super-productive daughters — also causes spontaneous abortion. The mutation spread through the US dairy industry and caused $420 million in losses.
That’s a crazy number, but here’s an even crazier one: Despite the lethal mutation, using Chief’s sperm instead of an average bull’s still led to $30 billion dollars in increased milk production over the past 35 years.
There’s nothing like that, at least not that I can think of, for crops, but it is just one of the nuggets in a super piece from The Atlantic magazine on selective breeding.
Brainfood: SE Asia archaeobotany, Avocado cryo, Farm diversity & revenue, DOC cheese, Kenyan agrobiodiversity, Perennial pigeonpea, Algerian sheep diversity, Basil rankings, Wild sunflower
- Rice, beans and trade crops on the early maritime Silk Route in Southeast Asia. At trade crossroads, crops had to audition for inclusion in the local menu.
- Cryopreservation of somatic embryos for avocado germplasm conservation. Still needs work.
- Soil fertility, crop biodiversity, and farmers’ revenues: Evidence from Italy. Diverse farms are more profitable, and can make up for poor soils.
- Native and Non-Native Sheep Breed Differences in Canestrato Pugliese Cheese Quality: a Resource for a Sustainable Pastoral System. Traditional local cheese is better when made with milk from traditional local breeds.
- Agrobiodiversity conservation enhances food security in subsistence-based farming systems of Eastern Kenya. But correlation is not causation.
- Estimating demand for perennial pigeon pea in Malawi using choice experiments. It won’t be liked everywhere.
- Genome-wide analysis highlights genetic dilution in Algerian sheep. Two of the 7 local breeds studied are in trouble due to uncontrolled breeding with a third, but may be doing better in neighbouring countries.
- Multicriteria optimization to evaluate the performance of Ocimum basilicum L. varieties. Fancy maths allows you to pick the best basil variety out of 8.
- The challenges of maintaining a collection of wild sunflower (Helianthus) species. Are many and varied…
Brainfood: Wilderness loss, Indian rice breeding, Wild barley, Korean millet, Jute mallow diversity, Wheat yields, Orange cassava
- Catastrophic Declines in Wilderness Areas Undermine Global Environment Targets. 10% of supposedly remote wilderness areas gone since the early 1990s.
- Genetic diversity trend in Indian rice varieties: an analysis using SSR markers. The diversity of rice varieties released in India has been decreasing, but only of late.
- Genotypic and phenotypic changes in wild barley (Hordeum vulgare subsp. spontaneum) during a period of climate change in Jordan. There were changes in climate on one side and phenotype and genotype on the other, but it was difficult to find a connection between the two.
- EST-SSR Based Genetic Diversity and Population Structure among Korean Landraces of Foxtail Millet (Setaria italica L.). As is often the case, there’s no geographic structure, unless there is.
- Domestication of jute mallow (Corchorus olitorius L.): ethnobotany, production constraints and phenomics of local cultivars in Ghana. Let the breeding begin.
- Similar estimates of temperature impacts on global wheat yield by three independent methods. Down by about 5% for a 1°C global temperature increase, no matter how you slice it.
- Genome-wide association mapping of provitamin A carotenoid content in cassava. SNPs associated with carotenoid content in cassava roots found in vicinity of known gene responsible for increase in accumulation of provitamin A carotenoids in cassava roots.
Nibbles: Yeast phylogeny, Jurassic beer, Welsh drink, Italian fruits, Vinegar museum, Lethal yellowing, Wilderness loss
- Beer yeast was domesticated in the 1600s. Or maybe not.
- I see that and raise you 65 million years.
- If you don’t like beer, try Lurvill’s Delight, but it’s only about 100 years old, I warn you.
- Preserving ancient fruits in an Italian orchard.
- And how many different types of vinegar do you think the vinegar museum has?
- The Caribbean coconut is under attack.
- We’ve been such bastards to the environment.