Results 11 to 20 of about 30,410 (239)
Impronta Genómica y Desarrollo Embrionario [PDF]
International Journal of Morphology, 2012 En los organismos diploides, cada gen autosomico esta representado por dos copias, o alelos, heredados de cada progenitor al momento de la fecundacion. Para la gran mayoria de los genes la expresion ocurre desde ambos alelos de manera simultanea. Sin embargo, un numero reducido de genes (menos del 1%) es afectado por un proceso de impronta genomica ...
Germán Reig, Miguel L. Concha
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DESARROLLO EMBRIONARIO DE Gonatodes albogularis (SPHAERODACTYLIDAE): TABLA DE DESARROLLO
Acta Biológica ColombianaEl estudio del desarrollo embrionario animal es de gran interés como base para estudios comparativos a nivel anatómico, fisiológico y evolutivo. El gecko de cabeza amarilla Gonatodes albogularis es un lagarto enano diurno con una amplia distribución en ...
Fabián Mauricio Sandoval-Jaimes +1 more
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Intropica, 2019 Lutzomyia longipalpis es el principal vector de la leishmaniasis visceral en las Américas. Durante seis días se hizo seguimiento al desarrollo de los huevos de L. longipalpis bajo condiciones experimentales.
Judier Karelly Melgarejo-Colmenares +2 more
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Radicales libres y desarrollo embrionario
Revista Colombiana de Ciencias Pecuarias, 2016 Resumen El estudio de la biología del desarrollo en mamíferos y la aplicación práctica del conocimiento obtenido a través de la fertilización in vitro y la transferencia de embriones, han tenido como obstáculo importante la alteración del desarrollo embrionario observado con frecuencia durante su cultivo y del cual la producción incontrolada de ...
Omar Camargo R +2 more
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Bulletin of Marine and Coastal Research, 2016 A description of the main characteristic stages and processes of embrionic development of Sepioteuthis sepioidea egg clusters collected in their natural enviroment is presented. Eggs were incubated in laboratory conditions (salinity 35 o/oo, temperature 25QC, photoperiod 12 hrs.).
Sylvia Fagundez +2 more
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Global warming facilitates the nesting of the loggerhead turtle on the Mediterranean coast of Spain
Animal Conservation, Volume 26, Issue 3, Page 365-380, June 2023., 2023 Average summer sand temperature (July 20th–August 10th) at 40 cm deep in Spanish Mediterranean beaches, as reconstructed from air temperature at El Prat beach, has increased from 1950 to 2019 (top figure). As a result, the duration of the viable nesting window for loggerhead turtles (bottom figure) has also increased and the thermal environment has ...
L. Cardona +9 more
wiley +1 more source
Ovule cell wall composition is a maternal determinant of grain size in barley
New Phytologist, Volume 237, Issue 6, Page 2136-2147, March 2023., 2023 Summary In cereal species, grain size is influenced by growth of the ovule integuments (seed coat), the spikelet hull (lemma and palea) and the filial endosperm. Whether a highly conserved ovule tissue, the nucellus, has any impact on grain size has remained unclear.
Xiujuan Yang +5 more
wiley +1 more source
Mitigating the effects of climate change on the nests of sea turtles with artificial irrigation
Conservation Biology, Volume 37, Issue 1, February 2023., 2023 Abstract For sea turtles, like many oviparous species, increasing temperatures during development threaten to increase embryonic mortality, alter offspring quality, and potentially create suboptimal primary sex ratios. Various methods are being implemented to mitigate the effects of climate change on reproductive success, but these methods, such as ...
Christopher R. Gatto +2 more
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Papel de la alfa-fetoproteína en el desarrollo embrionario del cerebro [PDF]
, 2012 [EN]The alpha-fetoprotein (AFP) is a glycoprotein similar to plasma-derived albumin and we have shown that it is present within the brain during embryonic development. Its location appears related to regions where axonal growth stops and in which there is a lower expression of the marker protein GAP-43 axonal development.
Alejandro García García
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American Journal of Botany, Volume 109, Issue 6, Page 887-898, June 2022., 2022 Abstract Premise In Arabidopsis thaliana, the role of the most important key genes that regulate ovule development is widely known. In nonmodel species, and especially in gymnosperms, the ovule developmental processes are still quite obscure. In this study, we describe the putative roles of Ginkgo biloba orthologs of regulatory genes during ovule ...
Greta D'Apice +6 more
wiley +1 more source