Genetics of sex determination in the gynodioecious species Lobelia siphilitica: evidence from two populations.

Abstract excerpt

In order to determine whether interactions between multiple sex-determining genes might be partly responsible for the wide variation in female frequency among populations of Lobelia siphilitica, we used progeny sex ratios from field-collected plants and from controlled crosses within and between two populations. We demonstrate that multiple cytoplasmic male-sterility types are present in a gynodioecious...

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