scholarly journals Modular co-option of cardiopharyngeal genes during non-embryonic myogenesis

EvoDevo ◽  
2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Maria Mandela Prünster ◽  
Lorenzo Ricci ◽  
Federico D. Brown ◽  
Stefano Tiozzo
Keyword(s):  
Embryonic Myogenesis

Muscle development is independent of innervation during Drosophila embryogenesis

Development ◽  
1993 ◽  
Vol 119 (2) ◽  
pp. 533-543 ◽  
Author(s):  
K. Broadie ◽  
M. Bate
Keyword(s):  
Time Course ◽  
Muscle Development ◽  
Single Cells ◽  
Drosophila Embryo ◽  
Wild Type ◽  
Type Pattern ◽  
Motor Nerves ◽  
Embryonic Myogenesis ◽  
Peripheral Motor

We have examined the role of innervation in directing embryonic myogenesis, using a mutant (prospero), which delays the pioneering of peripheral motor nerves of the Drosophila embryo. In the absence of motor nerves, myoblasts fuse normally to form syncytial myotubes, myotubes form normal attachments to the epidermis, and a larval musculature comparable to the wild-type pattern is generated and maintained. Likewise, the twist-expressing myoblasts that prefigure the adult musculature segregate normally in the absence of motor nerves, migrate to their final embryonic positions and continue to express twist until the end of embryonic development. In the absence of motor nerves, myotubes uncouple at the correct developmental stage to form single cells. Subsequently, uninnervated myotubes develop the mature electrical and contractile properties of larval muscles with a time course indistinguishable from normally innervated myotubes. We conclude that innervation plays no role in the patterning, morphogenesis, maintenance or physiological development of the somatic muscles in the Drosophila embryo.

Specific Role of Nitric Oxide (NO) in Avian Embryonic Myogenesis

2015 ◽  
Vol 158 (4) ◽  
pp. 508-512 ◽  
Author(s):  
V. Yu. Titov ◽  
G. V. Kondratov ◽  
A. V. Ivanova
Keyword(s):  
Nitric Oxide ◽  
Specific Role ◽  
Embryonic Myogenesis

scholarly journals The myomiR, miR-133, orchestrates myotome formation and embryonic myogenesis via concerted regulation of hedgehog-pathway components

2017 ◽  
Vol 145 ◽  
pp. S139
Author(s):  
Gi Fay Mok ◽  
Simon Moxon ◽  
Camille Viaut ◽  
Grant Wheeler ◽  
Andrea Münsterberg
Keyword(s):  
Hedgehog Pathway ◽  
Embryonic Myogenesis

scholarly journals The homeobox gene Arx is a novel positive regulator of embryonic myogenesis

2007 ◽  
Vol 15 (1) ◽  
pp. 94-104 ◽  
Author(s):  
S Biressi ◽  
G Messina ◽  
P Collombat ◽  
E Tagliafico ◽  
S Monteverde ◽  
...  
Keyword(s):  
Homeobox Gene ◽  
Positive Regulator ◽  
Embryonic Myogenesis

scholarly journals Modular co-option of cardiopharyngeal genes during non-embryonic myogenesis

2018 ◽  
Author(s):  
Maria Mandela Prünster ◽  
Lorenzo Ricci ◽  
Federico Brown ◽  
Stefano Tiozzo
Keyword(s):  
Heart Development ◽  
Body Wall ◽  
Cell Behavior ◽  
Botryllus Schlosseri ◽  
Developmental Pathway ◽  
Cellular Origin ◽  
Larval Stages ◽  
Adult Body ◽  
Embryonic Myogenesis ◽  
Different Origins

ABSTRACTBackgroundIn chordates cardiac and body muscles arise from different embryonic origins. Myogenesis can in addition be triggered in adult organisms, during asexual development or regeneration. In the non-vertebrate ascidians, muscles originate from embryonic precursors regulated by a conserved set of genes that orchestrate cell behavior and dynamics during development. In colonial ascidians, besides embryogenesis and metamorphosis, an adult can propagate asexually via blastogenesis, skipping embryo and larval stages, and form anew the adult body, including the complete body musculature.ResultsTo investigate the cellular origin and mechanisms that trigger non-embryonic myogenesis, we followed the expression of ascidian myogenic genes during Botryllus schlosseri blastogenesis, and reconstructed the dynamics of muscle precursors. Based on the expression dynamics of Tbx1/10, Ebf, Mrf, Myh3 for body wall and of FoxF, Tbx1/10, Nk4, Myh2 for heart development we show that the embryonic factors regulating myogenesis are only partially co-opted in blastogenesis, and propose that the cellular precursors contributing to heart or body muscles have different origins.ConclusionsRegardless of the developmental pathway, non-embryonic myogenesis shares a similar molecular and anatomical setup as embryonic myogenesis, but implements co-option and loss of molecular modules.

scholarly journals Ultrastructure of developing human muscle: the problem of multinucleation of striated muscle cells

1986 ◽  
Vol 44 (1) ◽  
pp. 1-14 ◽  
Author(s):  
Guilberto Minguetti ◽  
W. G. P. Mair
Keyword(s):  
Electron Microscopy ◽  
Basement Membrane ◽  
Plasma Membranes ◽  
Striated Muscle ◽  
Muscle Cells ◽  
Human Muscle ◽  
Membrane Tube ◽  
Embryonic Myogenesis ◽  
Human Foetuses

The authors studied by electron microscopy the muscle of 27 human foetuses ranging from 9 weeks to 9 months development. It was possible to observe that disintegration of the plasma membranes of adjacent myoblasts and myotubes which share a common basement membrane tube appears to occur in longitudinally disposed cells of those categories. This may help to explain how further nuclei may be incorporated into well developed myotubes and how the striated muscle cells become multinucleated during embryonic myogenesis and regeneration in vivo.

scholarly journals 09-P003 Leucine rich repeat transmembrane proteins Nlrr1 and Flrt3 and early embryonic myogenesis

2009 ◽  
Vol 126 ◽  
pp. S151-S152
Author(s):  
Bryan Haines ◽  
Lee Wheldon ◽  
Jaime Carvajal ◽  
John Heath ◽  
Peter Rigby
Keyword(s):  
Transmembrane Proteins ◽  
Leucine Rich Repeat ◽  
Embryonic Myogenesis
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