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Abstract Detail


PiƱa De la Rosa, Itzel Aurora [1], Cacho, N. Ivalu [2].

Evaluating potential drivers of divergence in Caribbean populations of Euphorbia tithymaloides.

The study of the factors that promote the divergence is fundamental to our understanding of biological evolution. Genetic and morphological divergence at the population level has been documented across populations of the species Euphorbia tithymaloides L. in the Caribbean. Several lines of evidence suggest this species might be experiencing divergence consistent with lineages following different evolutionary trajectories. In particular, floral morphology has been documented to be shifting towards relatively shorter inflorescences (cyathia) in Antillean populations, in comparison with mainland populations, with possible implications of lineage divergence (speciation).
Here we evaluate variation on floral phenology, floral reward and floral visitation across populations of Euphorbia tithymaloides in the Caribbean, in the context of the geographic, genetic and morphological patterns we observe this species-complex.

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1 - Instituto de Biologia, UNAM, Botanica, 3er circuito de Ciudad Universitaria s/n, Del Coyoacan, Mexico, CDMX, 04510, Mexico
2 - Instituto De Biologia, UNAM, Botanica, 3er Circuito de Ciudad Universitaria s/n UNAM, Coyoacan, CDMX, DF, 04510, Mexico

floral morphology
evolutionary ecology

Presentation Type: Poster
Session: P1, Biogeography Posters
Location: Virtual/Virtual
Date: Monday, July 19th, 2021
Time: 5:00 PM(EDT)
Number: P1BG002
Abstract ID:258
Candidate for Awards:None

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