Results 1 to 10 of about 611 (130)

Evidence that gastropod torsion is driven by asymmetric cell proliferation activated by TGF-beta signalling. [PDF]

open access: closedBiol Lett, 2011
Gastropods are characterized by their asymmetric bodyplan, which develops through a unique ontogenetic process called ‘torsion’. Despite several intensive studies, the driving force of torsion remains to be determined. Although torsion was traditionally believed to be driven by contraction of the retractor muscle connecting the foot and ...
Kurita Y, Wada H.
europepmc   +8 more sources

Expression Pattern of Nitric Oxide Synthase during Development of the Marine Gastropod Mollusc, Crepidula fornicata. [PDF]

open access: yesGenes (Basel), 2021
Nitric Oxide (NO) plays a key role in the induction of larval metamorphosis in several invertebrate phyla. The inhibition of the NO synthase in Crepidula fornicata, a molluscan model for evolutionary, developmental, and ecological research, has been ...
Truchado-Garcia M   +3 more
europepmc   +2 more sources

A Small Change With a Twist Ending: A Single Residue in EGF-CFC Drives Bilaterian Asymmetry. [PDF]

open access: yesMol Biol Evol, 2023
This is a pre-copyedited, author-produced PDF of an article accepted for publication in Molecular biology and evolution following peer review. The version of record Molecular biology and evolution 40.2 (2023): msac270 is available online at: https ...
Truchado-García M   +5 more
europepmc   +2 more sources

A Method for Quantifying, Visualising, and Analysing Gastropod Shell Form. [PDF]

open access: yesPLoS ONE, 2016
Quantitative analysis of organismal form is an important component for almost every branch of biology. Although generally considered an easily-measurable structure, the quantification of gastropod shell form is still a challenge because many shells lack ...
Thor-Seng Liew, Menno Schilthuizen
doaj   +2 more sources

Origin and significance of two pairs of head tentacles in the radiation of euthyneuran sea slugs and land snails. [PDF]

open access: yesSci Rep, 2021
The gastropod infraclass Euthyneura comprises at least 30,000 species of snails and slugs, including nudibranch sea slugs, sea hares and garden snails, that flourish in various environments on earth.
Brenzinger B, Schrödl M, Kano Y.
europepmc   +3 more sources

Proteomic analysis of trochophore and veliger larvae development in the small abalone Haliotis diversicolor [PDF]

open access: yesBMC Genomics, 2017
Background Haliotis diversicolor is commercially important species. The trochophore and veliger are distinct larval stages in gastropod development. Their development involves complex morphological and physiological changes.
Guilan Di   +8 more
doaj   +2 more sources

On growth and form of irregular coiled-shell of a terrestrial snail: Plectostoma concinnum (Fulton, 1901) (Mollusca: Caenogastropoda: Diplommatinidae). [PDF]

open access: yesPeerJ, 2014
The molluscan shell can be viewed as a petrified representation of the organism’s ontogeny and thus can be used as a record of changes in form during growth.
Liew TS   +4 more
europepmc   +5 more sources

Inducible Defenses with a "Twist": Daphnia barbata Abandons Bilateral Symmetry in Response to an Ancient Predator. [PDF]

open access: yesPLoS One, 2016
Predation is one of the most important drivers of natural selection. In consequence a huge variety of anti-predator defenses have evolved in prey species.
Herzog Q   +3 more
europepmc   +5 more sources

Dextral and sinistral Amphidromus inversus (Gastropoda: Pulmonata: Camaenidae) produce dextral sperm. [PDF]

open access: yesZoomorphology, 2011
Coiling direction in pulmonate gastropods is determined by a single gene via a maternal effect, which causes cytoskeletal dynamics in the early embryo of dextral gastropods to be the mirror image of the same in sinistral ones.
Schilthuizen M, van Heuven BJ.
europepmc   +3 more sources

Conservation of ParaHox genes' function in patterning of the digestive tract of the marine gastropod Gibbula varia. [PDF]

open access: yesBMC Dev Biol, 2010
Background Presence of all three ParaHox genes has been described in deuterostomes and lophotrochozoans, but to date one of these three genes, Xlox has not been reported from any ecdysozoan taxa and both Xlox and Gsx are absent in nematodes.
Samadi L, Steiner G.
europepmc   +4 more sources

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