User profiles for O. M. Vargas

Oscar M Vargas

California State Polytechnic University, Humboldt
Verified email at humboldt.edu
Cited by 633

Conflicting phylogenomic signals reveal a pattern of reticulate evolution in a recent high‐Andean diversification (Asteraceae: Astereae: Diplostephium)

OM Vargas, EM Ortiz, BB Simpson - New Phytologist, 2017 - Wiley Online Library
… undergone a recent diversification associated with the uplift of the Andes (Vargas & Madriñán,
2012). … ss), group A must be circumscribed as a different taxon (OM Vargas, unpublished). …

[HTML][HTML] Characterizing gene tree conflict in plastome-inferred phylogenies

JF Walker, N Walker-Hale, OM Vargas, DA Larson… - PeerJ, 2019 - peerj.com
Evolutionary relationships among plants have been inferred primarily using chloroplast data.
To date, no study has comprehensively examined the plastome for gene tree conflict. Using …

Beyond Refugia: New insights on Quaternary climate variation and the evolution of biotic diversity in tropical South America

…, SC Fritz, DS Battisti, CW Dick, OM Vargas… - … : Patterns and processes, 2020 - Springer
Haffer’s (Science 165: 131–137, 1969) Pleistocene refuge theory has provided motivation
for 50 years of investigation into the connections between climate, biome dynamics, and …

A consensus phylogenomic approach highlights paleopolyploid and rapid radiation in the history of Ericales

DA Larson, JF Walker, OM Vargas… - American Journal of …, 2020 - Wiley Online Library
Premise Large genomic data sets offer the promise of resolving historically recalcitrant species
relationships. However, different methodologies can yield conflicting results, especially …

Patterns of speciation are similar across mountainous and lowland regions for a Neotropical plant radiation (Costaceae: Costus)

OM Vargas, B Goldston, DL Grossenbacher, KM Kay - Evolution, 2020 - academic.oup.com
High species richness and endemism in tropical mountains are recognized as major
contributors to the latitudinal diversity gradient. The processes underlying mountain speciation, …

Bayesian and likelihood phylogenetic reconstructions of morphological traits are not discordant when taking uncertainty into consideration: a comment on Puttick et al.

…, GW Stull, OM Vargas… - … of the Royal …, 2017 - royalsocietypublishing.org
Puttick et al. (2017 Proc. R. Soc. B 284, 20162290 ( doi:10.1098/rspb.2016.2290 )) performed
a simulation study to compare accuracy among methods of inferring phylogeny from …

Admixture may be extensive among hyperdominant Amazon rainforest tree species

DA Larson, OM Vargas, A Vicentini, CW Dick - New Phytologist, 2021 - Wiley Online Library
Admixture is a mechanism by which species of long‐lived plants may acquire novel alleles.
However, the potential role of admixture in the origin and maintenance of tropical plant …

Diversification history of Neotropical Lecythidaceae, an ecologically dominant tree family of Amazon rain forest

OM Vargas, CW Dick - Neotropical diversification: patterns and processes, 2020 - Springer
The Neotropical subfamily of Lecythidaceae (Lecythidoideae) is a clade of 10 genera with an
estimated number of 232 species. Lecythidaceae is the third most abundant family of trees …

Target sequence capture in the Brazil nut family (Lecythidaceae): Marker selection and in silico capture from genome skimming data

OM Vargas, M Heuertz, SA Smith, CW Dick - Molecular Phylogenetics and …, 2019 - Elsevier
Reconstructing species trees from multi-loci datasets is becoming a standard practice in
phylogenetics. Nevertheless, access to high-throughput sequencing may be costly, especially …

Effect of whole-genome sequencing on the clinical management of acutely ill infants with suspected genetic disease: a randomized clinical trial

…, J Knight, AJ Schwarz, OM Vargas-Shiraishi… - JAMA …, 2021 - jamanetwork.com
Importance Whole-genome sequencing (WGS) shows promise as a first-line genetic test for
acutely ill infants, but widespread adoption and implementation requires evidence of an …