Exotic pests, shrinking ranges and a changing climate threaten some of the world’s most rare and ecologically important plants, and so conservationists establish seed collections to save the seeds in banks or botanical gardens in hopes of preserving some genetic diversity.
For decades, these seed collections have been guided by simple models that offer a one-size-fits-all approach for how many seeds to gather, such as recommending saving 50 seed samples regardless of species’ pollination mode, growth habitat and population size.
A new study, however, has found that more careful tailoring of seed collections to specific species and situations is critical to preserving plant diversity. Once seeds are saved, they can be reintroduced for planting in suitable locations if conditions are favorable.
In the study, researchers from the National Institute for Mathematical and Biological Synthesis and the University of Tennessee used a novel approach called simulation-based planning to make several new sampling recommendations, confirming that a uniform approach to seed sampling is ineffective.
First, collectors must choose their plant populations from a wide area rather than a restricted one. Sampling widely can capture up to nearly 200 percent more rare genes than restricted sampling. In addition, in most situations, collecting from about 25 maternal plants per population versus 50 plants appears to capture the vast majority of genetic variation. The study also showed that for many species, collecting more than eight to ten seeds per plant leads to high overlap in genetic diversity and would thus be an excess of effort.
Increasing concerns over agriculture and food security as well as an increasing recognition of how fast biodiversity is disappearing has prompted seed banks to ramp up their collections. By the same token, botanic gardens that were once more focused on showcasing plants are now increasingly having a conservation mission too, according to the study’s lead author Sean Hoban, a postdoctoral fellow at NIMBioS.
The Latest on: Seed bank
via Google News
The Latest on: Seed bank
- Seeds sown for more urban farming, access to fresh produceon February 21, 2020 at 4:02 pm
CAMDEN, N.J. (AP) — Christoff Lindsey is "authentically Camden," describing himself as "Camden born, raised, scarred, influenced." So it might seem surprising that the Bergen Square resident ("We ...
- The Fate of the Planet Rests on Dethroning the IMF and World Bankon February 21, 2020 at 9:52 am
Out of this meeting, the IMF and World Bank were created, and the seeds of what was to become the WTO system sown. But with leadership and control in the hands of the United States and its close ...
- COLUMN: Cherokee Nation heirloom seeds bound for global seed vaulton February 21, 2020 at 8:06 am
the Cherokee Nation took action by opening a tribal seed bank. Begun in 2006, the seed bank has steadily grown and widened its scope. In the decade since, our heirloom seed program has reinvigorated ...
- Diners can (mostly) bank on the all-day menu at Cafe Riggson February 21, 2020 at 5:12 am
Named for the Riggs National Bank that once graced the space, the dining room in the Riggs hotel in Penn ... Each bite of broccoli swells with the flavor of garlic and toasted sesame seeds. Among the ...
- No. 19 Red Bank Reg. over Long Branch - Girls basketball - Shore Conference 2nd rd.on February 20, 2020 at 8:03 pm
Red Bank Regional, No. 19 in the NJ.com Top 20 and the seventh seed in the Shore Conference, posted a 62-55 win over 10th-seeded Long Branch in the second round of the Shore Conference Tournament in ...
- GRAPHIC-Lofty stocks, hefty debt sow seeds of worry for some at Fedon February 19, 2020 at 7:24 pm
Rock-bottom corporate bond yields, high levels of business debt and one of the fastest expansions of stock market valuations on record are worrying some Federal Reserve officials who fret such ...
- Lofty stocks, hefty debt sow seeds of worry for some at Fedon February 19, 2020 at 6:43 pm
All quotes delayed a minimum of 15 minutes. See here for a complete list of exchanges and delays.
- Bioceres Crop Solutions Corp. Announces Upcoming Participation at Bank of America Merrill Lynch Investor Conferenceon February 19, 2020 at 8:05 am
ROSARIO, Argentina--(BUSINESS WIRE)--Bioceres Crop Solutions Corp. (“Bioceres”) (NYSE American: BIOX), a fully integrated provider of crop productivity solutions, today announced management’s ...
- Seed Infotech director, accountant go to police custody for seven dayson February 18, 2020 at 4:00 pm
Cops told MPID court they need to probe bank account in which scam collection took place, if any properties were purchased The special Maharashtra Protection of Interest of Depositors (MPID) Act court ...
- Cherokee Nation Sends Heirloom Seeds To ‘Doomsday’ Seed Vault In Norwayon February 18, 2020 at 10:40 am
The Cherokee Nation is the first US Tribe to save their culturally important seeds in the Svalbard Global Seed Vault ...
via Bing News