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Data from: Reproductive strategy of the polyploid species Varronia curassavica jacq. in restinga environment

Citation

Hoeltgebaum, Marcia Patricia; Londoño, Diana Marcela Morales; Lando, Ana Paula; dos Reis, Maurício Sedrez (2017), Data from: Reproductive strategy of the polyploid species Varronia curassavica jacq. in restinga environment, Dryad, Dataset, https://doi.org/10.5061/dryad.44ns0

Abstract

This study aimed to elucidate the breeding strategies of Varronia curassavica, an important medicinal species associated with Brazilian restinga. This was accomplished by combining phenological and genetic data. Every two weeks over a period of two years, we measured flowering and fruiting phenology to evaluate the activity and intensity of phenophases (n=60). We evaluated the mating system, pollen ovule ratio and genotypes from progeny and mother plants using eight nuclear microsatellite loci. We observed flowering and fruiting of V. curassavica at low intensity throughout the entire year, but with two distinct peaks, one of which was seasonal, corresponding to the period of gradual increase of temperature and photoperiod. Overlapping of flowering and fruiting strategies favors gene flow among different groups of individuals and between populations by atraction of fauna throughout the year. Analysis of the mating system indicates that V. curassavica is a typical outcrossed species (t = 0.98; P:O ratio = 7,087.50). Combining phenology with genetic studies improved our understanding of the reproductive strategies of this species. The typical outcrossing system of V. curassavica reflects the existence of functional self-incompatibility mechanisms still unaffected by changes in genetic balance by polyploidy.

Usage Notes

Location

Santa Catarina
Brazil