Protein identification of the mantle tissues of white-shelled and red-shelled hard clams（Meretrix meretrix）
Ontology highlight
ABSTRACT:
ORGANISM(S): Meretrix Meretrix
SUBMITTER: 
Yaoyao Han
PROVIDER: PXD067335 | iProX | Wed Aug 13 00:00:00 BST 2025
REPOSITORIES: iProX
Similar Datasets
Project description:The mantle is a thin tissue from which proteins are secreted dictating the mollusk shell construction. As a conserved organ involved in shell formation throughout mollusks, the mantle is an excellent foundation from which to study biomineralization. A P. maxima mantle tissue specific cDNA microarray, termed PmaxArray 1.0, has been developed comprising 5000 cDNA transcripts derived from the mantle tissue of P. maxima. This tool has been used to investigate the spatial functional dynamics of the mantle tissue identifying over 2000 PmaxArray 1.0 spots as differentially expressed spatially within this organ. Gene expression profiles observed for these transcripts indicated 5 major spatial functions for the mantle, 3 of which have been putatively attributed to shell formation roles associated with nacre microstructure, calcite prismatic microstructure and periostracum. These transcripts are further examined with in situ expression localization and comparative sequence analyses in reference to potential shell formation roles. This spatial investigation has expedited the elucidation of functions within the dynamic mantle organ, paying particular attention to of shell biomineralization. Keywords: Spatial expression profiling by array The mantle tissue from 9 animals was dissected into 5 separate sections: outer fold (OF), middle fold (MF), inner fold (IF), ventral mantle tissue (VM) and dorsal mantle tissue (DM). Total RNA was extracted from these tissues and pooled across subjects in order to reduce the effect of biological variation; such that 3 individuals were pooled together totaling 3 pooled replicate samples for each tissue. All the biologically pooled tissue types were compared against a common reference in which total RNA from all tissues types and all nine animals was equally pooled. A total of 30 dual channel microarrays hybridizations were performed and analyzed.
2010-05-15 | E-GEOD-14303 | biostudies-arrayexpress
Project description:The mantle is a thin tissue from which proteins are secreted dictating the mollusk shell construction. As a conserved organ involved in shell formation throughout mollusks, the mantle is an excellent foundation from which to study biomineralization. A P. maxima mantle tissue specific cDNA microarray, termed PmaxArray 1.0, has been developed comprising 5000 cDNA transcripts derived from the mantle tissue of P. maxima. This tool has been used to investigate the spatial functional dynamics of the mantle tissue identifying over 2000 PmaxArray 1.0 spots as differentially expressed spatially within this organ. Gene expression profiles observed for these transcripts indicated 5 major spatial functions for the mantle, 3 of which have been putatively attributed to shell formation roles associated with nacre microstructure, calcite prismatic microstructure and periostracum. These transcripts are further examined with in situ expression localization and comparative sequence analyses in reference to potential shell formation roles. This spatial investigation has expedited the elucidation of functions within the dynamic mantle organ, paying particular attention to of shell biomineralization. Keywords: Spatial expression profiling by array
2010-02-05 | GSE14303 | GEO
Project description:We produced RNA-seq data from mantle tissue of the King Scallop, Pecten maximus, and identified expression of pathways involved in pigmentation of the shell.
2020-09-17 | GSE147107 | GEO
Project description:We have got a yellow shell variety of Pinctada fucata martensii after years of artificial breeding. To identify differentially expressed genes between yellow shell and normal black shell pearl oysters, we performed label-free proteomic analyses by LC-MS using mantle edge tissues.
2019-11-13 | PXD012211 | Pride
Project description:The calcifying matrix proteins embedded within the shell biomineral structure is a mixture of proteins, glycoproteins, and polysaccharides that are involved in the shell formation processes. Here with develop bottom-up shotgun proteomic investigation of these proteins, thanks to specific transcriptomic data generated from the calcifying mantle of adult Lymnaea.
2018-04-05 | PXD008547 | Pride
Project description:for understanding the proteomic change of Mytilus mantle under shell damage and acidic sea water, the proteome of the mantle was analyzed and the different expressed proteins were identified.
2022-06-23 | PXD034858 |
Project description:To elucidate the modulatory participation of miRNAs in mollusk biomineralization, we have employed high-throughput sequencing to identify miRNAs of pearl oyster, Pinctada fucata. Our study focused on the miRNA expression profile of the mantle, an organ responsible for shell formation of the oyster. The pearl oysters were cultured in the tank with the maintaining conditions of temperature 19 ℃, PH 8.1 and salinity 33‰ in recirculating seawater.
2021-05-01 | GSE145993 | GEO
Project description:Specimens of L. elliptica were collected by scuba divers at a depth of 10-18m in January 2010 at Hangar Cove, Rothera Point, Adelaide Island, Antarctic Peninsula (67°34’07°S, 68°07’30°W). Animals were collected in two size classes: large animals (with lengths ranging around 60mm) and small animals (lengths ranging around 30mm), the sizes of which equated to average ages of 16 and 7 years respectively. These two groups were termed “old” and “young” respectively. The clams were maintained in a flow-through aquarium and allowed to acclimate to laboratory conditions for 2 weeks before experimentation. At the end of the acclimation period, 10 old and 10 young animals were transferred to a 60l jacketed tank with aerated sea water, connected to a thermocirculator. The sea water temperature was gradually raised from 0°C to +3°C over a 12 hour period. This temperature was then maintained for a further 12 hours, before sampling the animals. Mantle tissue samples were dissected and immediately snap frozen in liquid nitrogen and stored at -80°C. The sampling regime was repeated on 10 old and 10 young animals that had been maintained in the flow-through aquarium for the same time period (control animals) RNA was extracted from all samples using TriSure, according to manufacturer’s instructions. RNAs from mantle tissue from 5 animals from each group (old treated, young treated, old control and young control) were used in the array hybridization experiments. The array used was A-MEXP-1676. PCR amplified labelled cDNA targets were prepared from 1μg total RNA. 5 replicates were used with 1 dye swap.
2016-02-29 | E-MTAB-3283 | biostudies-arrayexpress
Project description:Transcriptional profiling of different clam tissues (hemolymph, extrapallial fluid and mantle) in response to brown ring disease; Brown ring disease (BRD) is a bacterial infection affecting the economically-important clam Ruditapes philippinarum. The disease is caused by a bacterium, Vibrio tapetis, that colonizes the edge of the mantle, altering the biomineralization process and normal shell growth. Altered organic shell matrices accumulate on the inner face of the shell leading to the formation of the typical brown ring in the extrapallial space (between the mantle and the shell). Even though structural and functional changes have been described in solid (mantle) and fluid (hemolymph and extrapallial fluids) tissues from infected clams, the underlying molecular alterations and responses remain largely unknown. This study was designed to gather information on clam molecular responses to the disease and to compare focal responses at the site of the infection (mantle and extrapallial fluid) with systemic (hemolymph) responses. To do so, we designed and produced a Manila clam expression oligoarray (15K Agilent) using transcriptomic data available in public databases and used this platform to comparatively assess transcriptomic changes in mantle, hemolymph and extrapallial fluid of infected clams. Results showed significant regulation in diseased clams of molecules involved in pathogen recognition (e.g. lectins, C1q domain-containing proteins) and killing (defensin), apoptosis regulation (death-associated protein, bcl-2) and in biomineralization (shell matrix proteins, perlucin, galaxin, chitin- and calcium-binding proteins). While most changes in response to the disease were tissue-specific, systemic alterations included co-regulation in all 3 tested tissues of molecules involved in microbe recognition and killing (complement-related factors, defensin). These results provide a first glance at molecular alterations and responses caused by BRD and identify targets for future functional investigations.
2015-01-01 | GSE58198 | GEO
Project description:The appearance of hard mineralized exoskeletons is a critical leap for animal evolution and partially lead to the explosion of diverse animals during the Cambrian, for example, molluscs. A majority of molluscs have mineralized shells to protect themselves. Despite numerous studies that have studied the remarkable mechanical properties of shells, the origin of shell formation is still elusive. Hence, this study investigated the overlooked shell proteome of chitons, which belong to polyplacophoran, Aculifera of Mollusca. By comparing the shell proteome to well-studied Conchifera groups, we inferred possible ancestral biomineralization toolkits of stem-group Mollusca. Taking advantage of the recently sequenced chiton mantle transcriptome and genome, eight core biomineralization proteins were identified by proteomics. Surprisingly, in contrast to previous thought that shell formation is convergently evolved, two important shell matrix proteins, Nacrein-like and Pif-like proteins were found to be conserved among Aculifera and Conchifera groups. Our findings identify a missed link of mineralized shell evolution in Mollusca and pose a hypothesis that stem-group molluscs have already evolved core biomineralization toolkits, which likely facilitate the formation of mineralized shells for protection that partially leads to their explosion.
2023-01-03 | PXD033490 | Pride