Results 31 to 40 of about 156,631 (209)

Confirmación taxonómica de Gelidium americanum (Gelidiaceae, Rhodophyta) en Tabasco, México, usando un enfoque morfológico y molecular

Acta Botanica Mexicana, 2021
Antecedentes y Objetivos: Gelidium americanum se distribuye ampliamente en la costa Atlántica de México; sin embargo, hasta ahora no se han realizado estudios que confirmen su identidad taxonómica utilizando marcadores moleculares y caracteres ...
Nataly Quiroz-González, Ma. Guadalupe Rivas Acuña, Ma. Edith Ponce Márquez   +2 more
doaj   +1 more source

Ophthalmic artery Doppler as potential surrogate marker of angiogenic imbalance in near‐term pregnancy

Ultrasound in Obstetrics &Gynecology, Volume 68, Issue 2, Page 211-219, August 2026.
ABSTRACT Objectives First, to evaluate whether the ratio of soluble fms‐like tyrosine kinase‐1 to placental growth factor (sFlt‐1/PlGF) is associated with hemodynamic changes in ophthalmic artery (OA) Doppler in near‐term pregnancy. Second, to assess the performance of OA Doppler to rule in and rule out angiogenic factor imbalance.
M. F. Tinajero, C. Faraci, M. Cuenca, M. Ferrer, S. Paolucci, E. Gratacos, F. Crovetto, F. Figueras   +7 more
wiley   +1 more source

Aplicación de herramientas moleculares para el mejoramiento genético de pasturas

Pastos y Forrajes, 2021
Objetivo: Fundamentar la importancia de la aplicación de herramientas moleculares en los programas de mejoramiento genético de pasturas. Materiales y Métodos: Se consultaron y analizaron 59 artículos, que abordan los métodos basados en biología ...
Ayerin Carrodeguas-Gonzalez, Andrés Zúñiga-Orozco   +1 more
doaj  

El uso de los RAPDs como marcadores moleculares en plantas

Botan‪ical Sciences, 1997
Se presenta una revisión de los marcadores moleculares denominados RAPDs (pronunciado "rapids"; de su nombre en inglés: Random Amplified Polymorphic DNA; su traducción al español: Polimorfismos de ADN Amplificados al Azar).
Adriana Otero-Arnaiz, Marlene de la Cruz, Ken Oyama   +2 more
doaj   +1 more source

Fine‐scale patterns of genetic structure in three species of forest birds reveal dynamic Pleistocene history within an Amazonian interfluve

Ibis, Volume 168, Issue 3, Page 972-984, July 2026.
Phylogeographical studies of Amazonian birds have revealed large intraspecific diversity, even within recognized areas of endemism. To understand the origin and organization of Amazonian diversity, including the influence of current and historical landscapes, we need to evaluate fine‐scale patterns of genetic diversity in relation to detailed ...
Affonso Henrique Nascimento de Souza, Camila Duarte Ritter, João Marcos Guimarães Capurucho, Juliana Menger, Camila Cherem Ribas   +4 more
wiley   +1 more source

Little devils of Neotropical forests: A first molecular phylogeny of stygnid harvestmen with UCE‐museomics and a gigamatrix approach (Arachnida, Opiliones, Stygnidae)

Systematic Entomology, Volume 51, Issue 3, July‐September 2026.
First family‐wide phylogenomic framework of Stygnidae using UCE‐museomics and a gigamatrix approach establishes a novel three‐subfamily classification, erecting the new subfamily Auraninae subfam. nov. Signatures of severe incomplete lineage sorting and short deep internodes suggest a rapid early‐burst Neotropical radiation, driving phylogenetic ...
Dongyoung Kim, Aylin Alegre‐Barroso, Gonzalo Giribet   +2 more
wiley   +1 more source

The role of Cacao agroforests in the genetic conservation of Cariniana legalis, an emblematic species of the atlantic forest

BMC Ecology and Evolution
Deforestation in the Atlantic Forest has reached critical levels, threatening multiple levels of biodiversity. In these deforested landscapes, conservation strategies could benefit from preserving agroforestry systems known as Cabruca, a traditional ...
A. S. Santos, J. B. Leal, R. X. Corrêa, K. P. Gramacho, F. A. Gaiotto   +4 more
doaj   +1 more source

Obtaining 5S rDNA molecular markers for native and invasive Cichla populations (Perciformes – Cichlidae), in Brazil - DOI: 10.4025/actascibiolsci.v30i1.1467

Acta Scientiarum: Biological Sciences, 2008
O gene DNAr 5S é informativo e possui altas taxas de conservação ao longo do genoma dos eucariotos, possuindo características únicas que são hereditárias.
Viviane Fátima de Oliveira, Alessandra Valéria de Oliveira, Alberto José Prioli, Sônia Maria Alves Pinto Prioli   +3 more
doaj   +1 more source

Marcadores moleculares para qualidade de ovocitos bovino

SPERMOVA, 2017
Oocyte selection using morphological criteria is currently used, but this selection approach has limitations in terms of accuracy, objectivity, and constancy. Therefore, the development of new methods that could allow the identification of molecular markers that can predict the oocyte competency more accurately is needed.
Sprícigo JF, Dode MA
openaire   +2 more sources

Diversidade genética de espécies de bambu na ilha de Santa Catarina: observações preliminares [PDF]

, 2014
TCC (graduação) - Universidade Federal de Santa Catarina. Centro de Ciências Agrárias. Curso de Agronomia.O estágio foi realizado no Laboratório de Fisiologia do Desenvolvimento e Genética Vegetal – UFSC, sob supervisão e orientação da Profa. Dra. Rosete
Zappelini, Júlia
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