Results 11 to 20 of about 27,323 (199)

Sex‐Specific Variation in Foraging Behavior is Related to Telomere Length in a Long‐Lived Seabird [PDF]

Ecology and Evolution, Volume 14, Issue 12, December 2024.
Foraging during breeding is energetically demanding, intimately linked to breeding investment, and possibly constrained by individual condition. Telomere length, the protective nucleoproteins located at the ends of the chromosomes, is considered a trait reflecting somatic maintenance and individual quality. We found that brown booby females with longer
Mauricio Guillen‐Parra, Rocio Barcenas‐Flores, Alberto Velando, Anne Wiley, Bibiana Montoya, Roxana Torres   +5 more
wiley   +2 more sources

Meristic co‐evolution and genomic co‐localization of lateral line scales and vertebrae in Central American cichlid fishes [PDF]

Ecology and Evolution, Volume 14, Issue 9, September 2024.
We dissect the co‐evolution and genetic architecture of lateral line scale counts and vertebrae numbers in Neotropical Heroine cichlids. Our phylogenetic comparative analyses recovered a positive correlation between these two traits. Furthermore, our qualitative traits locus (QTL) analyses identified significant genomic co‐localized associations for ...
Nicolas Ehemann, Paolo Franchini, Axel Meyer, C. Darrin Hulsey   +3 more
wiley   +2 more sources

Ácidos nucleicos y división celular

Lilloa, 2021
Se realizaron investigaciones citológicas para determinar el efecto del nucleato de sodio (SN) sobre la división nuclear y durante la recuperación, 1-8 días después del tratamiento.
Ladislao v. Olah
doaj  

Adrenoleucodistrofia ligada al cromosoma x

Revista Arbitrada Interdisciplinaria de Ciencias de la Salud. Salud y Vida, 2022
Objetivo: Analizar Adrenoleucodistrofia ligada al cromosoma x. Método: En esta investigación se realizó una búsqueda de información actualizada en bases de datos electrónicos como Scielo, PubMed, Biblioteca virtual de la salud, Google Académico entre otros.
Juan Alberto Viteri-Rodríguez, Mauricio Fernando Enrriquez-Grijalva, María Paz Sacancela-Gabilanes, Jenifer Alexandra Vasconez-Nina   +3 more
openaire   +1 more source

Translocaciones crípticas de cromosomas acrocéntricos en muestras de tejido de aborto aneuploide

Acta Pediátrica de México, 2015
Los heteromorfismos cromosómicos son variantes normales consideradas como sin impacto fenotípico. Algunos de los más frecuentes se encuentran en los brazos cortos de los cromosomas acrocéntricos (13, 14, 15, 21, 22).
Sandra Ramos, Bertha Molina, Patricia Grether, Dora Gilda Mayén, Oscar Castro, Marta Ángeles, Rebeca Rodríguez, Sara Frías   +7 more
doaj   +1 more source

Cromosomas y evolución en Arachis (Leguminosae)

Bonplandia, 1994
Fueron analizadas citológicamente cuarenta y un especies pertenecientes a ocho de las nueve secciones del género Arachis. Se analizaron en detalle los cariotipos veinticuatro de las cuarenta y un especies. Todas las especies tienen un par de cromosomas con satélite, excepto A. valida, que tiene dos pares. Los satélites se clasifican en diez tipos.
Fernández, Aveliano, Krapovickas, Antonio   +1 more
openaire   +4 more sources

New approaches to studying early brain development in Down syndrome

Developmental Medicine &Child Neurology, Volume 61, Issue 8, Page 867-879, August 2019., 2019
Down syndrome is the most common genetic developmental disorder in humans and is caused by partial or complete triplication of human chromosome 21 (trisomy 21). It is a complex condition which results in multiple lifelong health problems, including varying degrees of intellectual disability and delays in speech, memory, and learning. As both length and
Ana A Baburamani, Prachi A Patkee, Tomoki Arichi, Mary A Rutherford   +3 more
wiley   +1 more source

Physical Mapping of Bread Wheat Chromosome 5A: An Integrated Approach

The Plant Genome, Volume 8, Issue 3, November 2015., 2015
The huge size, redundancy, and highly repetitive nature of the bread wheat [Triticum aestivum (L.)] genome, makes it among the most difficult species to be sequenced. To overcome these limitations, a strategy based on the separation of individual chromosomes or chromosome arms and the subsequent production of physical maps was established within the ...
Delfina Barabaschi, Federica Magni, Andrea Volante, Agata Gadaleta, Hana Šimková, Simone Scalabrin, Maria Lucia Prazzoli, Paolo Bagnaresi, Katia Lacrima, Vania Michelotti, Francesca Desiderio, Luigi Orrù, Valentina Mazzamurro, Agostino Fricano, AnnaMaria Mastrangelo, Paola Tononi, Nicola Vitulo, Irena Jurman, Zeev Frenkel, Federica Cattonaro, Michele Morgante, Antonio Blanco, Jaroslav Doležel, Massimo Delledonne, Antonio M. Stanca, Luigi Cattivelli, Giampiero Valè   +26 more
wiley   +1 more source

22@ and the Innovation District in Barcelona and Montreal: A Process of Clustering Development between Urban Regeneration and Economic Competitiveness

Urban Studies Research, Volume 2011, Issue 1, 2011., 2011
This paper analyzes the governance strategy of the 22@ District in Barcelona in order to assess the factors that explain its success and could support the economic reconversion of Montreal’s future Innovation District (ID), as well as that of other cities. We examine the case of the 22@ District as a former industrial neighbourhood seen as a “model” of
Angelo Battaglia, Diane-Gabrielle Tremblay, Ben Derudder   +2 more
wiley   +1 more source

Estudios citogenéticos en el género Commelina L. (Commelinaceae). I

Lilloa, 2021
Los cariotipos de dos especies de Commelina L. se describen por primera vez en Tucumán. Commelina diffusa Burm., 2n = 30, tiene un cariotipo asimétrico compuesto por: 2 m pares + 11 sm pares + 2 st pares de cromosomas.
M. E. Cristóbal de Hinojo, Luz González, A. M. Frías de Fernández   +2 more
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