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UC Davis Reveals Genetic Secrets of Walnut Flowering

1/7/2025

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Summary

Story summary

Biologists at UC Davis have unveiled the genetic secrets behind walnut trees' unique ability to alternate between male and female flowering. This remarkable mechanism, stable for 40 million years, hinges on two gene variants that dictate flowering order. The findings mirror sex determination in animals, showcasing a delicate balance that sustains a 50:50 ratio in walnut and pecan populations.

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Story summary

Biologists at UC Davis have unveiled the genetic secrets behind walnut trees' unique ability to alternate between male and female flowering. This remarkable mechanism, stable for 40 million years, hinges on two gene variants that dictate flowering order. The findings mirror sex determination in animals, showcasing a delicate balance that sustains a 50:50 ratio in walnut and pecan populations.