Results 11 to 20 of about 2,655 (154)

Diversidad y diferenciación genética de la yuca ( Manihot esculenta Crantz) con marcadores microsatélites en poblaciones de África y Latinoamérica

Acta Biológica Colombiana, 2004
Se estudió la diversidad y diferenciación genética de 224 accesiones de yuca tradicionalmente cultivadas en Uganda. Adicionalmente, se incluyeron estudios previos de diversidad, 20 materiales de Tanzania, 20 de Ghana, 22 de Nigeria, 20 de Guatemala y 12 ...
Wilson Hernando Castelblanco Cepeda, Martin Fregene, Margarita Perea Dallos   +2 more
doaj   +1 more source

Identifying Key Biodiversity Areas Based on Distinct Genetic Diversity. [PDF]

Mol Ecol Resour
ABSTRACT Key Biodiversity Areas (KBAs) are sites that contribute significantly to the global persistence of biodiversity. Distinct genetic diversity has been introduced as one of the metrics to estimate whether a site holds a threshold proportion of a species' global genetic diversity during the KBA identification process.
Gronefeld SC, López H, Schmidt R, Hochkirch A.   +3 more
europepmc   +2 more sources

Patterns of Interploidy Admixture in Polyploid Complexes: Insights From Thymus Sect. Mastichina (Lamiaceae). [PDF]

Mol Ecol
ABSTRACT Understanding gene flow between ploidy levels in polyploid complexes is essential for species delimitation and conservation. This study explores evolutionary dynamics in the polyploid complex Thymus sect. Mastichina (Lamiaceae), comprising three taxa: T. mastichina subsp. mastichina, T. mastichina subsp.
García-Cárdenas FJ, Ortiz MÁ, Del Valle JC, Doblas-Pruvost D, de la Estrella M, Nieto-Lugilde D, Pokorny L, Berjano R.   +7 more
europepmc   +2 more sources

Análisis de variabilidad genética en Moniliophthora roreri con AP-PCR y RAPD en Antioquia, Colombia [PDF]

Revista Colombiana de Biotecnología, 2007
Moniliophthora roreri es el agente causante de la moniliasis del cacao, la enfermedad más severa en las plantaciones de cacao en el departamento de Antioquia, Colombia.
Sandra Patricia Grisales Ortega, Lucía Afanador Kafuri   +1 more
doaj   +1 more source

Replicate contact zones suggest a limited role of plumage in reproductive isolation among subspecies of the variable seedeater (Sporophila corvina)

Molecular Ecology, Volume 32, Issue 13, Page 3586-3604, July 2023., 2023
Abstract After establishing secondary contact, recently diverged populations may remain reproductively isolated or may hybridize to a varying extent depending on factors such as hybrid fitness and the strength of assortative mating. Here, we used genomic and phenotypic data from three independent contact zones between subspecies of the variable ...
Diego Ocampo, Kevin Winker, Matthew J. Miller, Luis Sandoval, J. Albert C. Uy   +4 more
wiley   +1 more source

Spatial models can improve the experimental design of field‐based transplant gardens by preventing bias due to neighborhood crowding

Ecology and Evolution, Volume 12, Issue 12, December 2022., 2022
Neighborhood interactions in common gardens: spatial models provide novel insights into spatial interactions among neighboring plants that can alter experimental outcomes. While the paper presents two approaches to the treatment of spatial interactions, it also outlines opportunities for incorporating genotype‐mediated biotic interactions into designs ...
Andrii Zaiats, Juan M. Requena‐Mullor, Matthew J. Germino, Jennifer S. Forbey, Bryce A. Richardson, T. Trevor Caughlin   +5 more
wiley   +1 more source

Evolution of fruit and seed traits during almond naturalization

Journal of Ecology, Volume 110, Issue 3, Page 686-699, March 2022., 2022
Almond naturalization is consistent with strong directional selection on fruits and seeds, leading to smaller and more toxic seeds encased in harder endocarps. Accordingly, we propose that feralization of this crop is, at least to some degree, driven by adaptive evolution of dispersal and recruitment traits.
Andrés Barea‐Márquez, Francisco J. Ocaña‐Calahorro, Rodrigo Balaguer‐Romano, José María Gómez, Eugene W. Schupp, Raquel Sánchez‐Pérez, Jesús Guillamón, Joanna Zhang, Rafael Rubio de Casas   +8 more
wiley   +1 more source

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

Biotropica, 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, Natalia Gutiérrez‐Pinto, Suzette Flantua, Diego Castellanos Suárez, Carlos Jaramillo, R. Toby Pennington, Alexandre Antonelli   +6 more
wiley   +1 more source

Diferenciación, variabilidad y estructura genética de poblaciones del morfotipo andino de Turnera sidoides subespecie pinnatifida [PDF]

, 2020
Turnera sidoides (Passifloraceae, Turneroideae) es un complejo autopoliploide de hierbas alógamas perennes distribuido en el Dominio Chaqueño. Cuenta con cinco subespecies y siete morfotipos, que poseen diferentes niveles de ploidía (x=7).
Silva, Gisella Carolina, Dabrio, Alfredo, Moreno, Ercilia Maria Sara, Paredes, Esteban Nadal, Solis Neffa, Viviana Griselda, Almirón, Noelia Emilia Alejandrina   +5 more
core   +1 more source

Variación genética en cerdo doméstico (Sus scrofa domestica) de Córdoba-Colombia basada en marcadores microsatélites

Revista Mexicana de Ciencias Pecuarias, 2015
Se evaluó mediante veinte microsatélites la variación genética de tres poblaciones de cerdos en Córdoba-Colombia. Todos los loci estudiados fueron polimórficos con una heterocigosidad observada que osciló en un rango de 0.2 a 84.2 % (con una media de 68 ...
Iván Meléndez Gélvez, Enrique Pardo Pérez, Teodora Inés Cavadía Martinez   +2 more
doaj   +3 more sources