Paradigm shift in apomixis research: Targeting mutants with elements of apomixis in sexual crops.
Draga S, Gabelli G, Palumbo F, Colombo L, Albertini E
Seed Saving
Seed-saving gardeners who want to reliably clone a favorite tomato or squash variety are chasing the same goal researchers are: offspring that grow true every time without crossing or pollinating.
Some plants can make seeds entirely on their own, skipping the usual step of pollen meeting egg — the offspring are basically clones of the parent. Scientists have been trying to copy this ability into food crops so farmers could save seeds that always grow into the same plant. This paper argues the fastest path forward isn't lab engineering but simply finding crop plants that already do this naturally, even partially, through random genetic mutations.
Key Findings
Apomixis occurs in two distinct forms — sporophytic and gametophytic — each following a separate developmental pathway with different implications for seed formation
Current apomixis research is split between studying natural model systems and engineering synthetic versions; this paper advocates for a neglected third path: screening crop populations for spontaneous apomixis-like mutants
Naturally occurring apomixis mutants in crops could accelerate breeding breakthroughs without the regulatory and technical hurdles of genetic engineering
chevron_right Technical Summary
Researchers propose a new strategy for harnessing apomixis — a plant superpower that lets seeds form without sex or fertilization — by hunting for naturally occurring mutant crop plants that already show hints of this trait, rather than engineering it from scratch.
Abstract Preview
In addition to model system studies and synthetic engineering, prioritizing the discovery of naturally occurring apomixis-like mutants in crops would provide an immediate route to applied innovatio...
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