Mating system, sex ratio, and persistence of females in the gynodioecious shrub Daphne laureola L. (Thymelaeaceae)

Article Abstract:

The mating system of southern Spanish shrub Daphne laureola in five populations differing in sex ratio, and infer levels of inbreeding depression over the whole life cycle by comparing the inbreeding coefficients at the seed and adult plant stages was assessed. The low outcrossing rates were consistently found for haemaphrodites in all populations whereas, as expected, female progeny were entirely outcrossed.

Plants, Plant reproduction, Mezereum

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Mating patterns and demography in the tristylous daffodil Narcissus triandrus

Article Abstract:

The geographical variation is determined and investigated if demography, morphology and mating system differ between the two sexual systems. It is found that there are no consistent differences among the style morphs in outcrossing or biparental inbreeding indicating that the maintenance of trimorphism versus dimorphism is unlikely to be associated with inbreeding of maternal parents.

Canada, Sexual behavior, Demographic aspects, Botany, Plant morphology, Inbreeding, Dimorphism (Biology)

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Mating patterns and genetic diversity in the wild Daffodil Narcissus longispathus (Amaryllidaceae)

Article Abstract:

The selfing rates and levels of genetics diversity at allozyme loci in six populations of Narcissus longispathus, a self-compatible daffodil endemic to a few mountain ranges in southeastern Spain were measured. The observed patterns of genetic differentiation were due to the mating system, and a combination of local topography, watershed affinities and gene flow.

Genetic aspects, Amaryllidaceae

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