- Cross-validation of a semantic segmentation network for natural history collection specimens. Computers can distinguish the herbarium label from the actual specimen and other stuff on the sheet, helping with the whole automatic digitization thing, but it takes some really fancy math.
- The landscapes of livestock diversity: grazing local breeds as a proxy for domesticated species adaptation to the environment. Medium fancy math used to map breed diversity in the Iberian Peninsula for different livestock species and relate it to environmental factors.
- South-to-north migration preceded the advent of intensive farming in the Maya region. Sort of like tomato, but in the other direction. Plenty of math involved, but behind the scenes, thankfully.
- Timing and magnitude of climate-driven range shifts in transboundary fish stocks challenge their management. Huge amount of data and very fancy math shows fish are in trouble.
- A Core Set of Snap Bean Genotypes Established by Phenotyping a Large Panel Collected in Europe. Ok, even I can follow the math on this one.
- Assessment of biogeographic variation in traits of Lewis flax (Linum lewisii) for use in restoration and agriculture. Very approachable math shows which populations of a CWR can best be used for restoration, and where; and also for domestication and breeding.
- An updated checklist of plant agrobiodiversity of northern Italy. Very useful use of very basic maths. Key number: only 43% of the PGR on the list are conserved ex situ.
- Cannabis, the multibillion dollar plant that no genebank wanted. No math needed to figure out weed needs a genebank.
An apple story a day…
Well, that’s odd. The rush of stories about apples usually happens in the autumn. And yet, just in the past couple of days, quite apart from the tweet about Korbinian Aigner, I have come across:
- An excellent roundup from the Apples & People newsletter.
- A pointer to a webpage on the history of American apples.
- News of newly-bred hypoallergenic varieties.
Oh, and since I have you here, might as well also say that there’s been an update from GRIN-U. No new resources specifically on apples lately, but there’s been a few in the past.
Nibbles: American single malt, Gauguin’s coconut, World Seed Congress, Red gold, Kunming
- Will American single malt whiskey be a thing? Depends on the American barley.
- Is the fruit in Paul Gauguin’s Eü haere ia oe (Woman Holding a Fruit) a coconut? Have your say.
- Will the World Seed Congress sow a brilliant future? We shall see.
- Is the oil palm over in West Africa? Depends.
- Where are we with that post-2020 biodiversity deal? Nowhere much yet.
A remarkable pomologist
There was a fascinating tweet yesterday from Trevor & Frances FitzJohn, cider makers in Wairarapa, New Zealand.
One of the most courageous pomologists was Bavarian priest Korbinian Aigner. He was outspoken during WW2 and sent to Dachau concentration camp where he secret continued his apple breeding.
— TeePee Cider (@Trevor_FJ) March 29, 2022
It’s about the Bavarian priest, pomologist and artist Korbinian Aigner. I’m sorry to say I’d never heard of him. He apparently continued his apple breeding efforts even while imprisoned at Dachau.
Between two barracks he planted apple trees, and he even succeeded in breeding new varieties which he named KZ-1, KZ-2, KZ-3 and KZ-4, though by 2016 only KZ-3 (later named the Kobinian Apple in his honor) was still in existence. The saplings were smuggled out of the camp by a young novice nun, who visited the plantations in order to collect fruit and vegetables for a local orphanage.
Alas, I can’t find his KZ-3 variety in any of the usual genebank databases. Has anyone out there come across it?
Brainfood: Green Revolution narratives, Soybean diversity, Wild barley diversity, Maize and bean breeding, Rice breeding, Apple pedigrees, Trees and diets, ICRISAT genebank, IITA genebank, GHUs, CGIAR policy, Diverse farming, De novo domestication
- Epic narratives of the Green Revolution in Brazil, China, and India. Symbols, heroes, heritage-making and we-will-do-it-even-better-next-time in the service of self-preservation and self-assertion. But, as we shall see below, not everything needs to be an epic success to be interesting, and useful.
- Using landscape genomics to infer genomic regions involved in environmental adaptation of soybean genebank accessions. Analysis of USDA collection shows that many haplotypes associated with high-latitude cold tolerance in China are still absent from modern American and European cultivars.
- Phenotypic evolution of the wild progenitor of cultivated barley (Hordeum vulgare L. subsp. spontaneum (K. Koch) Thell.) across bioclimatic regions in Jordan. Re-collecting after 23 years shows some loss of phenotypic diversity.
- Decades of Cultivar Development: A Reconciliation of Maize and Bean Breeding Projects and Their Impacts on Food, Nutrition Security, and Income of Smallholder Farmers in Sub-Saharan Africa. Much done, much remains to be done.
- Genetic Trends Estimation in IRRIs Rice Drought Breeding Program and Identification of High Yielding Drought-Tolerant Lines. Progress, but not fast enough.
- A new method to reconstruct the direction of parent-offspring duo relationships using SNP array data and its demonstration on ancient and modern cultivars in the outcrossing species Malus × domestica. Sometimes it’s difficult to tell which variety is the parent and which the offspring.
- What are the links between tree-based farming and dietary quality for rural households? A review of emerging evidence in low- and middle-income countries. Meta-analysis shows that trees can help with diets, but it depends on a lot of things.
- Genebanks and market participation: evidence from groundnut farmers in Malawi. Improved peanut varieties derived from genebank accessions encourage market participation by farmers through expanding the area under cultivation, but not the amount sold.
- IITA’s genebank, cowpea diversity on farms, and farmers’ welfare in Nigeria. Improved varieties derived from genebank accessions don’t push out landrace diversity and are associated with higher yields and other benefits to farmers.
- The role of CGIAR Germplasm Health Units in averting endemic crop diseases: the example of rice blast in Bangladesh. The IRRI Germplasm Health Unit contributed about 2% to the benefits of the rice blast resistance breeding programme, but that’s a cost:benefit ratio of 112.
- Policy directions in public agricultural research: CGIAR’s public goods mandate and plant genetic resources. There has been too much focus on the “global” bit of “global public goods,” and opportunities have thus apparently been missed. The three papers above would like a word though.
- Landscape complexity and functional groups moderate the effect of diversified farming on biodiversity: A global meta-analysis. Diverse farming systems are better for both agricultural production and biodiversity.
- Breeding future crops to feed the world through de novo domestication. Ah yes, we will do it better this time.