Avocado Trees Switch Sexes Twice A Day - This Ancient Gene Explains How
Researchers have identified a specific gene, SDMYB, that controls the daily sexual role-switching behavior in avocado trees. This genetic mechanism has remained consistent for over 40 million years, explaining the biological rhythm of A-type and B-type avocado varieties.
Why it matters
Understanding the genetic basis of plant reproduction can improve agricultural efficiency and crop yields for growers.
Long before the guacamole reaches the table, the tree that grew that avocado has already run through a biological performance that has puzzled scientists for nearly a century. Avocado trees switch sexual roles twice a day, every day, on a precise schedule. Now, researchers have identified the single gene most strongly linked to it, and its story stretches back about 42 million years.
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