Results 11 to 20 of about 209,208 (165)

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

At the limits of a successful body plan - 3D microanatomy, histology and evolution of Helminthope (Mollusca: Heterobranchia: Rhodopemorpha), the most worm-like gastropod. [PDF]

open access: yesFront Zool, 2013
Background: Gastropods are among the most diverse animal clades, and have successfully colonized special habitats such as the marine sand interstitial. Specialized meiofaunal snails and slugs are tiny and worm-shaped.
Brenzinger B, Haszprunar G, Schrödl M.
europepmc   +3 more sources

Laterality of shell formation differs in two sympatric gastropod species: mulberry shell (Tenguella granulata), and strawberry topshell (Clanculus pharaonius)

open access: yesIsrael Journal of Ecology & Evolution, 2023
We studied and found that the populations of two gastropod species in the inter-tidal zone of the Red Sea at Eilat demonstrate a predominantly dextral chirality of their shells.
R. Yosef, Tamar Kadosh, J. Kosicki
semanticscholar   +1 more source

Pelagiella exigua, an early Cambrian stem gastropod with chaetae: lophotrochozoan heritage and conchiferan novelty

open access: yesPalaeontology, 2020
Exceptionally well‐preserved impressions of two bundles of bristles protrude from the apertures of small, spiral shells of Pelagiella exigua, recovered from the Kinzers Formation (Cambrian, Stage 4, ‘Olenellus Zone’, c. 512 Ma) of Pennsylvania.
R. Thomas, B. Runnegar, Kerry Matt
semanticscholar   +1 more source

Streptoneury Is Independent From Ontogenetic Torsion in the Caenogastropod Snail Marisa Cornuarietis

open access: yes, 2021
A hallmark in snails’ anatomy is the conspicuous crossing of the pleurovisceral nerve cords present in all but the most derived gastropod clades. This feature is called streptoneury and hitherto near-universally believed to derive from the process of ...
J. Morath   +6 more
semanticscholar   +1 more source

Expressed sequence tag analysis of genes expressed during development of the tropical abalone Haliotis asinina [PDF]

open access: yes, 2006
The tropical abalone. Haliotis asinina. is,in ideal species to investigate the molecular mechanisms that control development. growth, reproduction and shell formation in all cultured haliotids. Here we describe the analysis of 232 expressed sequence tags
Bricelj, V. Monica   +6 more
core   +6 more sources

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