- Nature has new Plants journal. With blog.
- More from the randomized trials backlash frontlines.
- World Bank sets up internal task force on climate smart agriculture. Oh good.
- No word on whether spiritual values on agenda.
- Hacking the school lunch.
- Indian flour mills winding down. Implications for crop diversity unknown.
- Big Australian writeup of CIMMYT genebank.
- Big CIP writeup of CIP genebank. And other collections, to be fair.
- It’s the regeneration, stupid.
- Gardens save plants.
- Sustainable diets defined to within an inch of their lives. Common factor is less animal products. But, as Susan McMillan of ILRI points out, for whom, and where?
- Traditional Maori use of weird fungus.
Brainfood: Biological control, Mycorrhizal diversity, Trees in landscapes, Not-so-green agriculture, EU restoration, Speciation, Let them eat fruit, Grasspea diversity, Chinese pigs and goats, Cattle diversity worldwide, Hazelnut in vitro
- Development of microbial consortia as a biocontrol agent for effective management of fungal diseases in Glycine max L. Bacteria gang up to fight soya fungal pathogens. Ain’t diversity grand.
- Species richness of arbuscular mycorrhizal fungi: associations with grassland plant richness and biomass. More symbiotic fungi, more plant species and more biomass. Ain’t diversity grand.
- Trees in a deforested tropical landscape: species and trait diversity and potential ecosystem services. Even isolated exotics provide services, for all their lack of biodiversity conservation value.
- Green Light for Green Agricultural Policies? An Analysis at Regional and Global Scales. Model suggests that biodiversity targets for EU farmland lead to externalities paid for by others.
- Exploring restoration options for habitats, species and ecosystem services in the European Union. Target degraded habitats in cheap countries to meet most targets at lowest costs.
- How common is homoploid hybrid speciation? Not very. Thank heavens for the other kind.
- Explaining the ‘hungry farmer paradox’: Smallholders and fair trade cooperatives navigate seasonality and change in Nicaragua’s corn and coffee markets. Fair trade farmers still endure 3 hungry months, but having fruit trees helps.
- Drivers of plant biodiversity and ecosystem service production in home gardens across the Beijing Municipality of China. More edibles and fewer ornamentals with increasing distance from central Beijing. But probably still not enough to meet demand.
- Genetic polymorphism of fifteen microsatellite loci in Brazilian (blue-egg Caipira) chickens. Blue eggs?
- Indigenous chicken genetic resources in Kenya: their unique attributes and conservation options for improved use. And not a single blue egg in sight. Conservation through use.
- Lathyrus diversity: available resources with relevance to crop improvement – L. sativus and L. cicera as case studies. Genotyping and core collections needed.
- Genetic diversity and population structure of black Dahe pig based on DNA sequences analyses of mitochondrial and nuclear genes. Not much diversity in this Chinese pig. No word on their presence in Beijing homegardens.
- Associations between polymorphisms of the GFI1B gene and growth traits of indigenous Chinese goats. Polymorphic sites associated with growth traits. Let the molecular breeding begin. No word on whether same possible for pigs.
- Worldwide Patterns of Ancestry, Divergence, and Admixture in Domesticated Cattle. Cattle came into Europe in at least 2 waves, one from the Middle East, one from W Africa via Spain. The Asian breeds are something else again, and were involved in only the former of those waves.
- Effect of coconut water and growth regulator supplements on in vitro propagation of Corylus avellana L. One fruit helps conservation of another.
Nibbles: City farming, Yeast diversity, Fungal taxonomy, Ankole cattle, Fruit breeding, Goat improvement, Private hunger, Vietnam cacao, Sequencing life, Old vegetables, Cola politics, Lugar Center, Wither biofuels, Plant breeder award, Amateur potato breeding
- “Fifteen to twenty percent of the world’s food is produced through urban farming, involving an estimated 800 million people.”
- We shaped yeasts as much as they shaped us. Now to sort out their nomenclature, along with the rest of the benighted fungal kingdom.
- Cheese is just one way yeasts shaped us. What kind of cheese can you make from Ankole milk, I wonder.
- Sean Myles tells us how his lab “makes food better.”
- Tan Sonstegard of USDA tells us how ADAPTMap can make goats better. Skip to 2 mins in, if you want to avoid adorable footage of cute (human) kids. I love a nice bit of goat cheese.
- Can the private sector help combat hunger and malnutrition? Gee, I dunno, do tell me.
- Vietnamese chocolate comes of age. Someone mention the private sector?
- Gene jockeys take over world. World surrenders.
- What did the Elizabethans ever do for us? Well, they grew funky vegetables for one thing.
- Both Colas sign up to FAO guidelines that “protect the rights of poor and vulnerable people to land, livelihoods and food security.” But is it all marketing?
- The Lugar Center has a bunch of bibliographic resources for researchers.
- Biofuels? Bah, humbug.
- Jorge Dubcovsky, a professor of plant sciences at the University of California–Davis, snags another award.
- “Are you all converts to the cause of backyard potato breeding?” Do tell. And so we come full circle.
Nibbles: Tomato colour, INBio demise, Specimens, Plant lore, Ancient chickens, Edible flowers, Urban veg, Trees & nutrition
- Deconstructing the colour of tomatoes. h/t @kctomato
- INBio folds? Or (h/t Jacob) government takes responsibility?
- Discussion on whether natural history specimens are necessary.
- So there’s a place where you can record your plant lore. No word on whether that’s linked to specimens.
- Yellow skin in chickens is a recent trait. Specimens involved. Part of that PNAS special feature on domestication.
- What have bees ever done for us?
- Edible flowers not just for pansies.
- Australia funds World Veg to research urban veg in Africa.
- Remember how we included in Brainfood a few months back a paper linking tree cover with dietary diversity and fruit/veg consumption in Africa? Well, here’s the PowerPoint.
A one-step approach to clarify the origin of crop species
We asked Dr Dan Brock to break down his paper on the domestication of Jerusalem Artichoke. Thanks, Dan. Sandy Knapp has also had her say on this. Who needs the full text of papers these days.
Identifying the wild progenitors of crops is one of the key steps we have to take if we are to effectively harness the diversity maintained in the world’s genebanks. This information can and should be used to fuel efforts to increase the productivity and sustainability of modern agriculture. In the case of allopolyploid crop species, which are formed by a combination of interspecific hybridization and genome duplication, this information is also of technical significance. In these systems, a major obstacle in the way of genome-scale surveys of genetic diversity is the fact that variation occurring between the progenitor-derived sets of chromosomes cannot be discerned from variation occurring within each chromosome set. In a recent publication in the journal New Phytologist 1 we highlight a one-step approach that can be used to clarify the origins of previously intractable polyploid complexes, using Jerusalem Artichoke as an example.
The Jerusalem Artichoke (Helianthus tuberosus) is a culturally and economically important tuber-producing hexaploid whose origin has long fascinated botanists. Despite prolonged interest, the evolutionary history of this species has, until recently, remained a mystery. Different hypotheses have so far proposed the annual sunflower H. annuus as well as numerous other congeners as its likely progenitors. We tested these competing scenarios using the genome skimming approach. 2 One lane of Illumina sequencing generated sufficient data to reconstruct complete plastid genomes, partial mitochondrial genomes, as well as partial 35S and 5S nuclear-encoded ribosomal DNA for the Jerusalem Artichoke and its candidate progenitors. Analyses performed using these data provided unprecedented resolution for this group, which is notoriously difficult to resolve using phylogenetic inference. Our results showed that the Jerusalem Artichoke originated repeatedly via hybridization between the Hairy Sunflower (H. hirsutus), which likely served as the maternal parent, and the Sawtooth Sunflower (H. grosseserratus), which likely served as the paternal parent.
The advent of new sequencing technologies has made ever-increasing portions of the genome available for investigation, with ever-decreasing investment in researcher time and effort. We are therefore in an ideal position: we can use these breakthroughs to resolve the origins of crops like the Jerusalem Artichoke whose unclear ancestry has, until now, hampered evolutionarily-informed germplasm preservation and genome-enabled progress.