Results 21 to 30 of about 7,701 (178)
Wnt/β-catenin signaling is an evolutionarily conserved determinant of chordate dorsal organizer
eLife, 2020 Deciphering the mechanisms of axis formation in amphioxus is a key step to understanding the evolution of chordate body plan. The current view is that Nodal signaling is the only factor promoting the dorsal axis specification in the amphioxus, whereas ...
Iryna Kozmikova, Zbynek Kozmik
doaj +1 more source
Differential responses to Wnt and PCP disruption predict expression and developmental function of conserved and novel genes in a cnidarian. [PDF]
PLoS Genetics, 2014 We have used Digital Gene Expression analysis to identify, without bilaterian bias, regulators of cnidarian embryonic patterning. Transcriptome comparison between un-manipulated Clytia early gastrula embryos and ones in which the key polarity regulator ...
Pascal Lapébie +7 more
doaj +1 more source
Effect of Melia azadirchta Fruit extract on the eggs, embryo and Juveniles of the fresh water snail Physa acuta ( Draparnaud) , at different experimental tern per a tures. [PDF]
مجلة التربية والعلم, 2007 (Gastrula, Trochophore& hatching) as the incubation temperature increased and it was very The influence of the alcoholic extract of Melia azadirchta fruit of different concentrations at different experimental temperatures on the fecundity, embryonic ...
Talib Ali, Azhar Hamed
doaj +1 more source
Foxd4l1.1 Negatively Regulates Chordin Transcription in Neuroectoderm of Xenopus Gastrula
Cells, 2021 Inhibition of the bone morphogenetic proteins (BMPs) is the primary step toward neuroectoderm formation in vertebrates. In this process, the Spemann organizer of the dorsal mesoderm plays a decisive role by secreting several extracellular BMP inhibitors ...
Vijay Kumar +5 more
doaj +1 more source
Frontiers in Marine Science, 2023 Embryonic development, especially metamorphosis and settlement, has a major impact on the life history of marine invertebrates. Apostichopus japonicus is an economically important species of sea cucumber. In this study, we performed RNA sequencing on six
Fang Su +30 more
doaj +1 more source
Specification of germ layer identity in the chick gastrula [PDF]
BMC Developmental Biology, 2007 Abstract Background Chick definitive endoderm is an important source of signals that pattern the early embryo forming a central structure around which the body plan is constructed. Although the origin of definitive endoderm has been mapped in the chick, arising principally from rostral streak at elongating streak stages,
Chapman, Susan C +3 more
openaire +2 more sources
Pre-gastrula expression of zebrafish extraembryonic genes [PDF]
BMC Developmental Biology, 2010 Abstract Background Many species form extraembryonic tissues during embryogenesis, such as the placenta of humans and other viviparous mammals. Extraembryonic tissues have various roles in protecting, nourishing and patterning embryos.
Hong, Sung-Kook +7 more
openaire +2 more sources
Biology, 2022 Here, we described the complex nervous system at five early developmental stages (blastula, gastrula, auricularia, doliolaria and pentactula) of a holothurian species with highly economic value, Apostichopus japonicus.
Yingqiu Zheng +5 more
doaj +1 more source
Calcium signaling in tunicate development
Frontiers in Ecology and EvolutionA comparative overview is provided of Ca2+ signaling and its potential mechanistic roles during development in tunicates. As background, the review presents an introduction to tunicate taxonomy, and then a general overview of Ca2+ signaling and methods ...
Joel C. Glover +3 more
doaj +1 more source
Scientific Reports, 2021 The mesoderm is considered the youngest of the three germ layers. Although its morphogenesis has been studied in some metazoans, the molecular components underlying this process remain obscure for numerous phyla including the highly diverse Mollusca ...
Attila Sachslehner +3 more
doaj +1 more source