Results 21 to 30 of about 4,531,702 (176)

The seasonally dry tropical forest species Cavanillesia chicamochae has a middle Quaternary origin

open access: yesBiotropica, Volume 54, Issue 1, Page 91-99, January 2022., 2022
We use DNA sequence data to understand the evolutionary history of the genus Cavanillesia (Malvaceae), with particular emphasis on C. chicamochae, an emblematic succulent‐trunked tree endemic to seasonally dry tropical forests (SDTFs) of the Chicamocha Canyon of Colombia, South America.
Christine D. Bacon   +6 more
wiley   +1 more source

Biogeography of Angolan rodents: The first glimpse based on phylogenetic evidence

open access: yesDiversity and Distributions, Volume 27, Issue 12, Page 2571-2583, December 2021., 2021
Abstract Aim Assessment of phylogenetic diversity and biogeographical affinities of the rodent fauna from one of the most neglected areas in Africa. Location Angola (with biogeographical implications in adjacent areas). Methods Inference of mitochondrial phylogenies for rodent genera occurring in Angola, delimitation of molecular operational taxonomic ...
Jarmila Krásová   +7 more
wiley   +1 more source

Phylogenetic and ecological correlates of pollen morphological diversity in a Neotropical rainforest

open access: yesBiotropica, Volume 53, Issue 1, Page 74-85, January 2021., 2021
Abstract Morphology varies enormously across clades, and the morphology of a trait may reflect ecological function or the retention of ancestral features. We examine the tension between ecological and phylogenetic correlates of morphological diversity through a case study of pollen grains produced by angiosperms in Barro Colorado Island, Panama (BCI ...
Luke Mander   +4 more
wiley   +1 more source

Evolución de la familia Agavaceae: Filogenia, biología reproductiva y genética de poblaciones

open access: yesBotan‪ical Sciences, 2000
La familia Agavaceae abarca ocho géneros con biologías reproductivas contrastantes, ya que pueden ser iteróparos (se pueden reproducir varias veces) o semélparos (producen una sola inflorescencia en su vida, para después morir) y tienen una notable ...
Luis E. Eguiarte   +2 more
doaj   +1 more source

Filogenia molecular preliminar de Scaphosepalum (Orchidaceae: Pleurothallidinae)

open access: yesLankesteriana, 2011
El género Scaphosepalum (Orchidaceae: Pleurothallidinae) agrupa a 49 especies de distribución tanto amplia como restringida las que muchas veces crecen en simpatría biótica en los bosques montanos neotropicales. Scaphosepalum alcanza su pico de diversidad en el norte de los Andes y constituye un sistema interesante para investigar el efecto que ...
Endara, Carmen Lorena   +2 more
openaire   +4 more sources

Evolutionary position of Peruvian land snails (Orthalicidae) among Stylommatophora (Mollusca: Gastropoda)

open access: yesRevista Peruana de Biología, 2011
The genera Bostryx and Scutalus (Orthalicidae: Bulimulinae) are endemics from South America. They are mainly distributed on the western slopes of the Peruvian Andes.
Jorge Ramirez   +4 more
doaj   +1 more source

Identificación molecular y relaciones evolutivas de Pomacea nobilis, base para la autenticación específica del churo negro de la Amazonia peruana

open access: yesRevista Peruana de Biología, 2020
En la Amazonia Peruana los caracoles dulceacuícolas de la familia Ampullariidae son conocidos como churos y originalmente han sido descritas para Perú alrededor de 20 especies.
Rina Ramírez   +8 more
doaj   +1 more source

Sistemática de Dasylirion: taxonomía y filogenia molecular

open access: yes, 2017
Se realizo el estudio monografico del genero Dasylirion. En esta revision se reconocen 16 especies, incluyendo cuatro especies nuevas . El analisis de sitios de restriccion del DNA de los cloroplastos (cpDNA) indica que las especies de Dasylirion del sur
D. Bogler
semanticscholar   +1 more source

9 - Filogenia y evolución molecular

open access: yes, 2014
Chapter 9 of the book "Bioinformática con Ñ" a project aiming to provide specialized educational bibliography on Bioinformatics for Spanish speakers. The result consists on more than 500 pages where the following matters are covered: biomedical databases, sequence analysis, phylogeny and evolution, structural biology, including diverse topics such as ...
Abascal, Federico   +2 more
openaire   +2 more sources

The HABP2 G534E polymorphism does not increase nonmedullary thyroid cancer risk in Hispanics

open access: yesEndocrine Connections, 2016
Familial nonmedullary thyroid cancer (NMTC) has not been clearly linked to causal germline variants, despite the large role that genetic factors play in risk. Recently, HABP2 G534E (rs7080536A) has been implicated as a causal variant in NMTC.
Mabel E Bohórquez   +12 more
doaj   +1 more source

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