Results 51 to 60 of about 469,054 (153)
Summary Developmental processes are regulated at multiple levels, including the epigenetic level. Among the epigenetic factors, histone H3 lysine 4 (H3K4) methyltransferases contribute to active transcription of target genes, and here, we explored how the H3K4 methyltransferase ARABIDOPSIS HOMOLOG OF TRITHORAX1 (ATX1) affects Arabidopsis thaliana ...
Selene Napsucialy‐Mendivil +7 more
wiley +1 more source
Trastornos menstruales y dismenorrea en laadolescencia
Las alteraciones del ciclo menstrual son un motivo de consulta frecuente en el grupo de adolescentes, siendo un motivo de preocupación para ellas y sus padres. En la mayor parte de los casos, se debe a una inmadurez del eje hipotálamo -hipófisis- ovario (
P. Carolina Sghulin-Zeuthen, Dra. +1 more
doaj +1 more source
Spatiotemporal Dynamics of Non‐Ecological Speciation in Rubyspot Damselflies (Hetaerina spp.)
ABSTRACT Non‐ecological speciation is a common mode of speciation, which occurs when allopatric lineages diverge in the absence of pronounced ecological differences. Yet, relative to other speciation mechanisms, non‐ecological speciation remains understudied.
C. Patterson +8 more
wiley +1 more source
Ciclo reproductivo anual y fecundidad de Scorpaena Notata (Teleostei: Scorpaenidae) [PDF]
Scorpaena notata (Teleostei: Scorpaenidae) is an oviparous species with external fertilisation that shows some unusual features in its gonadal morphology and gametogenesis.
Casadevall, Margarida +3 more
core +1 more source
Reproductive biology was studied in Lactophrys quadricomis, from samples collectéd monthly from May 1990 to Apri11991 in the east coast of Venezuela. Sex ratio was 1: 1; half the population matured at total lenght of 198 mm for males and 222 mm for females. Minimal sizes for maturity was 160 and 170 mm of L.T in males and females, respectively.
Ruiz, Lilia J. +2 more
openaire +4 more sources
Delineating ecologically distinct groups for annual cycle management of a declining shorebird
Using measurements of migratory connectivity in concert with expert opinion can define ecologically distinct groups for wildlife management that differ in the environmental conditions they experience across seasons of the annual cycle, which is a key component for understanding and reversing declines of migratory species. Abstract Patterns of migratory
Elly C. Knight +18 more
wiley +1 more source
Integrating adult occurrence and reproduction data to identify conservation measures for amphibians
Abstract Monitoring programs are pivotal to establishing sound management. Due to economic, logistic, and time limitations, monitoring programs often overlook differences among life‐history stages. However, species occurrence does not necessarily mean population viability, and it is unclear to what extent monitoring programs that do not consider ...
Elia Lo Parrino +4 more
wiley +1 more source
El objetivo de este trabajo fue conocer y describir el ciclo reproductivo y el dimorfismo sexual morfométrico de Homonota fasciata en el monte de San Juan.
Rodrigo Alfredo Nieva Cocilio +3 more
doaj +1 more source
La citoquímica aplicada para la determinación de fases del ciclo reproductivo en perras [PDF]
"La citoquímica aplicada nos sirve para determinar los cambios citológicos en la vagina que suceden en las diferentes razas de perras durante todas etapas de su ciclo y así verificar la estacionalidad del mismo (asa, 1992; Bank, 1996), también para ...
Tamalatzi Cahuantzi, Manuel
core
Buddleja bullata Kunth from Colombia collected by No reproductivo #1141
File Name: TOLI-22697-MON-02-B10-3.jpg CÓDIGO FOTO: TOLI-22697-MON-02-B10-3- Fotografía: SI Nº TOLI: TOLI-22697 PARCELA: MON-02 CÓDIGO: B10-3 Nº COLECTA: 1141 NUEVOS COLECTORES: Brayan Morales COLECTORES: No reproductivo Nº MUESTRAS MONTADAS: 1 ...
reproductivo, No (8341695) +1 more
core +1 more source

