Evidence that gastropod torsion is driven by asymmetric cell proliferation activated by TGF-beta signalling. [PDF]
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]
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]
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]
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]
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]
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
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On growth and form of irregular coiled-shell of a terrestrial snail: Plectostoma concinnum (Fulton, 1901) (Mollusca: Caenogastropoda: Diplommatinidae). [PDF]
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]
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]
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]
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

