Lukas VFN 🇪🇺Genetic mechanism of alternating sexes in #walnut #trees has some parallels to #SexDetermination in humans https://phys.org/news/2025-01-genetic-mechanism-alternating-sexes-walnut.html
Ancient structural variants control sex-specific #flowering time morphs in #walnuts and #hickories https://www.science.org/doi/10.1126/science.ado5578
"A walnut #tree produces #flowers of one sex, then the other in the same season, but trees differ in which one comes first. Individual trees are consistently male-first or female-first in flowering."
Genetic mechanism of alternating sexes in walnut trees has some parallels to sex determination in humans
The genetics behind the alternating sexes of walnut trees have been revealed by biologists at the University of California, Davis. The research, published in Science, reveals a mechanism that has been stable in walnuts and their ancestors going back 40 million years—and which has some parallels to sex determination in humans and other animals.