O. A. Perez-Escobar

The Origin And Speciation Of Orchids

This study reconstructs the phylogeny of orchids using genomic data and infers their geographic origin and speciation patterns, finding their origin in Laurasia and recent speciation in Central America.

Morphometrics and phylogenomics of coca (Erythroxylum spp.) illuminate its reticulate evolution, with implications for taxonomy

This study uses morphometrics and phylogenomics to analyze coca species and their relatives, revealing gene flow and taxonomic implications for coca classification.

Rtapas: An R package to assess cophylogenetic signal between two evolutionary histories

Rtapas is an R package that performs Random Tanglegram Partitions to assess cophylogenetic signal between two evolutionary histories, identifying associations contributing to phylogenetic congruence or incongruence.

Archaeogenomics of a ~2,100-year-old Egyptian leaf provides a new timestamp on date palm domestication

The paper analyzes an ancient date palm leaf to determine the timing of gene flow from wild relatives to domesticated date palms, finding hybridization occurred at least 2,100 years ago.

Hundreds of nuclear and plastid loci yield insights into orchid relationships

This study uses nuclear and plastid gene data to analyze orchid phylogenetic relationships, finding incongruence between nuclear and plastid trees and higher informativeness in nuclear genes.

Plastid phylogenomics resolves ambiguous relationships within the orchid family and provides a solid timeframe for biogeography and macroevolution

This study uses plastid phylogenomics to resolve ambiguous relationships within the orchid family and provides divergence times for biogeography and macroevolution.

Introgression across evolutionary scales suggests reticulation contributes to Amazonian tree diversity

This study shows hybridization is common in Amazonian trees, with evidence of introgression across multiple lineages and time scales, challenging the view that hybridization is rare in the region.

Random Tanglegram Partitions (Random TaPas): An Alexandrian Approach to the Cophylogenetic Gordian Knot

This paper introduces Random TaPas, a method to quantify cophylogenetic signal by analyzing tanglegrams, and finds it reveals low signal in two real systems with distinct coevolutionary processes.

From tree tops to the ground: reversals to terrestrial habit in Galeandra orchids (Epidendroideae: Catasetinae)

This study investigates the reversal to terrestrial habit in Galeandra orchids, linking it to aridification and changes in pollination strategies.

Multiple Geographical Origins of Environmental Sex Determination enhanced the diversification of Darwins Favourite Orchids

The paper investigates whether environmental sex determination (ESD) in orchids is linked to increased diversification rates by analyzing phylogenetic data from Neotropical Catasetinae.

Recent origin of Neotropical orchids in the world’s richest plant biodiversity hotspot

This study investigates the origin and diversification of Neotropical orchids in the Andes, finding most lineages originated in the last 15 million years and diversification correlates with Andean orogeny.