Results 1 to 10 of about 53 (45)

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

open access: yesBiology Letters, 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 ...
Hiroshi Wada, Yoshihisa Kurita
exaly   +3 more sources

COMMENTS ON “THE ADAPTIVE SIGNIFICANCE OF GASTROPOD TORSION” [PDF]

open access: yesEvolution; International Journal of Organic Evolution, 1967
Roger L, Batten   +2 more
exaly   +3 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   +1 more source

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

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   +1 more source

GASTROPOD TORSION: A TEST OF GARSTANG'S HYPOTHESIS

open access: yesThe Biological Bulletin, 1985
Torsion occurs in gastropod molluscs as a 180° twisting of the shell and viscera relative to the head and foot of the veliger larva. Garstang (1928, 1929) proposed, and it has since become widely accepted, that torsion functions as a larval defense by allowing veligers to first pull the head into the shell, then sealing the aperture with the foot and ...
Pennington, J Timothy, Chia, Fu-Shiang
openaire   +4 more sources

Conkazal‐M1 from the MKAVA family of conotoxins: A dual‐function protease inhibitor and neuroactive peptide

open access: yesProtein Science, Volume 35, Issue 5, May 2026.
Abstract Marine cone snails produce a diverse array of bioactive peptides, known as conotoxins, in their venom. Given their high target potency and specificity, conotoxins are attractive compounds for the development of precision research tools and pharmacological agents.
Celeste M. Hackney   +12 more
wiley   +1 more source

Type of Carbonate Production, Sedimentary and Tectonic Evolution of the Pliocene Mixed Carbonate Siliciclastic Unit (Macco) in the Tarquinia Basin, Central Italy

open access: yesBasin Research, Volume 38, Issue 3, May–June 2026.
Piacenzian mixed carbonate‐siliciclastic succession (‘Macco’ unit) deposited on the passive margin of the Tyrrhenian back‐arc basin. Sedimentation was controlled by syn‐sedimentary tectonics, with NW–SE first‐order faults (3–4 km) creating accommodation space and NE–SW second‐order faults (~0.5 km) influencing facies distribution and growth structures.
Marco Brandano   +5 more
wiley   +1 more source

New partial skeleton of Homo habilis from the upper Burgi Member, Koobi Fora Formation, Ileret, Kenya

open access: yesThe Anatomical Record, Volume 309, Issue 3, Page 485-545, March 2026.
Abstract KNM‐ER 64061 is a partial skeleton from the upper Burgi Member of the Koobi Fora Formation (2.02–2.06 Ma) associated taphonomically and geochemically with a nearly complete mandibular dentition (KNM‐ER 64060) attributed to Homo habilis.
Frederick E. Grine   +8 more
wiley   +1 more source

Primary Productivity and Habitat Depth Shape Developmental Mode in European Marine Gastropods

open access: yesEcology and Evolution, Volume 16, Issue 3, March 2026.
Thorson's rule suggests that marine gastropods in colder, high‐latitude regions tend to have non‐pelagic (non‐drifting) larval development. However, this study on 94 European gastropod species found that the rule disappears when examined at finer spatial scales, with temperature and phylogeny having little influence.
Nicolás Weidberg   +3 more
wiley   +1 more source

Reconstructing human‐induced geomorphic changes through historical maps and multitemporal remote sensing data in the Cancano–San Giacomo di Fraele reservoirs (Central Alps, Italy)

open access: yesEarth Surface Processes and Landforms, Volume 51, Issue 3, March 2026.
Reconstructing ~200 years of landscape change at the Cancano–San Giacomo hydroelectric system (Central Alps), we integrate historical cartography, archival photographs, multitemporal aerial/satellite imagery and field validation to map pre‐ and post‐impoundment landforms.
Luca Forti   +8 more
wiley   +1 more source

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