Results 31 to 40 of about 11,717 (208)

Ciona as a Simple Chordate Model for Heart Development and Regeneration

open access: yesJournal of Cardiovascular Development and Disease, 2016
Cardiac cell specification and the genetic determinants that govern this process are highly conserved among Chordates. Recent studies have established the importance of evolutionarily-conserved mechanisms in the study of congenital heart defects and ...
Heather Evans Anderson   +1 more
doaj   +1 more source

Massive Gene Loss and Function Shuffling in Appendicularians Stretch the Boundaries of Chordate Wnt Family Evolution

open access: yesFrontiers in Cell and Developmental Biology, 2021
Gene loss is a pervasive source of genetic variation that influences species evolvability, biodiversity and the innovation of evolutionary adaptations. To better understand the evolutionary patterns and impact of gene loss, here we investigate as a case ...
Josep Martí-Solans   +6 more
doaj   +1 more source

Sensory cells in tunicates: insights into mechanoreceptor evolution

open access: yesFrontiers in Cell and Developmental Biology
Tunicates, the sister group of vertebrates, offer a unique perspective for evolutionary developmental studies (Evo-Devo) due to their simple anatomical organization.
Chiara Anselmi   +6 more
doaj   +1 more source

Highly distinct genetic programs for peripheral nervous system formation in chordates

open access: yesBMC Biology, 2022
Background Vertebrates develop their peripheral nervous system (PNS) from transient unique embryonic structures, the neural crest, and the ectodermal placodes that are located at the border of the forming central nervous system.
Rafath Chowdhury   +5 more
doaj   +1 more source

Diverse logics and grammar encode notochord enhancers

open access: yesCell Reports, 2023
Summary: The notochord is a defining feature of all chordates. The transcription factors Zic and ETS regulate enhancer activity within the notochord. We conduct high-throughput screens of genomic elements within developing Ciona embryos to understand how
Benjamin P. Song   +6 more
doaj   +1 more source

Deuterostome phylogeny reveals monophyletic chordates and the new phylum Xenoturbellida.

open access: yes, 2006
Deuterostomes comprise vertebrates, the related invertebrate chordates (tunicates and cephalochordates) and three other invertebrate taxa: hemichordates, echinoderms and Xenoturbella.
Eric S. Lander   +27 more
core   +2 more sources

Additional file 1 of Highly distinct genetic programs for peripheral nervous system formation in chordates

open access: yes, 2022
Additional file 1: Fig. S1. Expression patterns in P. mammillata of previously known vPNS markers of invertebrate chordates. In situ hybridization at several stages of orthologs of known vPNS markers in invertebrate chordates for P. mammillata.
Hélène Mayeur (10128245)   +5 more
core   +1 more source

Expression of Fox genes in the cephalochordate Branchiostoma lanceolatum

open access: yesFrontiers in Ecology and Evolution, 2015
Forkhead box (Fox) genes code for transcription factors that play important roles in different biological processes. They are found in a wide variety of organisms and appeared in unicellular eukaryotes. In metazoans, the gene family includes many members
Daniel eAldea   +3 more
doaj   +1 more source

Las colecciones del Museu Valencià d’Història Natural [PDF]

open access: yesArxius de Miscel-lània Zoològica, 2017
The collections of the Museu Valencià d’Història Natural The records of database collections of the Museu Valencia d’Història Natural are published, with a clear dominance of mollusks, arthropods and chordates.
Martínez-Ortí, A.
doaj   +1 more source

A Pentaradial and Bilateral Combined Photoreception System in the Sea Cucumber is Mediated by a Blue Light‐Sensitive R‐Opsin

open access: yesAdvanced Science, EarlyView.
The sea cucumber Holothuria leucospilota detects blue and adjacent wavelengths of light via an r‐opsin with a maximum absorption at 459 nm. In the oral tentacles, papillae, and tube feet, distinct light‐sensing structures with specialized morphologies are formed, constituting a unique pentaradial and bilateral combined photoreception system.
Jiasheng Huang   +20 more
wiley   +1 more source

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