User profiles for R. Barrantes

Roxana Barrantes

Pontificia Universidad Católica del Perú, Departamento de Economía
Verified email at pucp.edu.pe
Cited by 1806

Ancient human genomes suggest three ancestral populations for present-day Europeans

…, G Bailliet, E Balanovska, O Balanovsky, R Barrantes… - Nature, 2014 - nature.com
We sequenced the genomes of a ∼7,000-year-old farmer from Germany and eight ∼8,000-year-old
hunter-gatherers from Luxembourg and Sweden. We analysed these and other …

Reconstructing native American population history

…, R Vasquez, M Villena, C Moreau, R Barrantes… - Nature, 2012 - nature.com
The peopling of the Americas has been the subject of extensive genetic, archaeological and
linguistic research; however, central questions remain unresolved 1 , 2 , 3 , 4 , 5 . One …

[HTML][HTML] Genetic variation and population structure in Native Americans

…, AM Hurtado, D Labuda, W Klitz, R Barrantes… - PLoS …, 2007 - journals.plos.org
We examined genetic diversity and population structure in the American landmass using
678 autosomal microsatellite markers genotyped in 422 individuals representing 24 Native …

[HTML][HTML] Geographic patterns of genome admixture in Latin American Mestizos

…, B Camrena, H Nicolini, W Klitz, R Barrantes… - PLoS …, 2008 - journals.plos.org
The large and diverse population of Latin America is potentially a powerful resource for
elucidating the genetic basis of complex traits through admixture mapping. However, no genome-…

Mitochondrial DNA" clock" for the Amerinds and its implications for timing their entry into North America.

A Torroni, JV Neel, R Barrantes… - Proceedings of the …, 1994 - National Acad Sciences
Students of the time of entry of the ancestors of the Amerinds into the New World are divided
into two camps, one favoring an "early" entry [more than approximately 30,000 years before …

[HTML][HTML] Latin Americans show wide-spread Converso ancestry and imprint of local Native ancestry on physical appearance

…, C Bravi, J Molina, D Corach, R Barrantes… - Nature …, 2018 - nature.com
Historical records and genetic analyses indicate that Latin Americans trace their ancestry
mainly to the intermixing (admixture) of Native Americans, Europeans and Sub-Saharan …

[PDF][PDF] Internet and poverty: Opening the black box

H Galperin, J Mariscal, R Barrantes - 2014 - idl-bnc-idrc.dspacedirect.org
This book addresses policy questions of whether or not (and even for whom) there are
development impacts related to broadband access and alleviation of poverty. Technology can …

[PDF][PDF] Analysis of ICT demand: What is digital poverty and how to measure it

R Barrantes - Digital poverty: Latin American and …, 2007 - practicalactionpublishing.com
This chapter discusses the notions of poverty, information needs and information and
communication technologies (ICT) to offer a concept of digital poverty and estimate the digital …

[HTML][HTML] Identification of the variant Ala335Val of MED25 as responsible for CMT2B2: molecular data, functional studies of the SH3 recognition motif and correlation …

…, JR Lupski, A Ekici, F Pasutto, S Endele, R Barrantes… - neurogenetics, 2009 - Springer
Charcot-Marie-Tooth (CMT) disease is a clinically and genetically heterogeneous disorder.
All mendelian patterns of inheritance have been described. We identified a homozygous p.…

Microevolution in lower Central America: genetic characterization of the Chibcha-speaking groups of Costa Rica and Panama, and a consensus taxonomy based on …

R Barrantes, PE Smouse… - American Journal of …, 1990 - ncbi.nlm.nih.gov
… The estimation techniques for allele and haplotype frequencies, described by Barrantes et al.
(1982), are … These are the same patterns of affinity we reported elsewhere (Barrantes et al. …