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#palnts

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The Global Plant Council

Genetics of Alternating Sexes in Walnuts

Scientists have uncovered a genetic mechanism in walnuts and their ancestors that has remained stable for 40 million years. Male-first or female-first flowering, balanced by a single genetic locus, parallels sex determination in animals. This evolutionary trait ensures genetic diversity, with distinct pathways evolving independently in walnuts and pecans.

globalplantcouncil.org/genetic #Plantsci #Palnts #walnuts #PlantGenetics #PlantReproduction

Image: Walnuts harvested at the Crain ranch in Los Molinos where Cooperative Extension and UC Davis professors were conducting research. Credit: UC Regents
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