@article {8155, title = {Data for evolutive analysis of insulin related peptides in bilaterian species}, journal = {Data in Brief}, volume = {22}, year = {2019}, month = {Jan-02-2019}, pages = {546 - 550}, issn = {23523409}, doi = {10.1016/j.dib.2018.12.050}, url = {https://linkinghub.elsevier.com/retrieve/pii/S2352340918315890}, author = {Cherif--Feildel, Ma{\"e}va and Clothilde Berthelin and Riviere, Guillaume and Favrel, Pascal and Kellner, Kristell} } @article {5782, title = {Molecular evolution and functional characterisation of insulin related peptides in molluscs: Contributions of Crassostrea gigas genomic and transcriptomic-wide screening}, journal = {Journal of Comparative Endocrinology}, volume = {271}, year = {2019}, pages = {15-29}, type = {research}, abstract = {

Insulin Related Peptides (IRPs) belong to the insulin superfamily and possess a typical structure with two chains,
B and A, linked by disulphide bonds. As the sequence conservation is usually low between members, IRPs are
classified according to the number and position of their disulphide bonds. In molluscan species, the first IRPs
identified, named Molluscan Insulin-related Peptides (MIPs), exhibit four disulphide bonds. The genomic and
transcriptomic data screening in the Pacific oyster Crassostrea gigas (Mollusc, Bivalvia) allowed us to identify six
IRP sequences belonging to three structural groups. Cg-MIP1 to 4 have the typical structure of MIPs with four
disulphide bonds. Cg-ILP has three disulphide bonds like vertebrate Insulin-Like Peptides (ILPs). The last one,
Cg-MILP7 has a significant homology with Drosophila ILP7 (DILP7) associated with two additional cysteines
allowing the formation of a fourth disulphide bond. The phylogenetic analysis points out that ILPs may be the
most ancestral form. Moreover, it appears that ILP7 orthologs are probably anterior to lophotrochozoa and
ecdysozoa segregation. In order to investigate the diversity of physiological functions of the oyster IRPs, we
combine in silico expression data, qPCR measurements and in situ hybridization. The Cg-ilp transcript, mainly
detected in the digestive gland and in the gonadal area, is potentially involved in the control of digestion and
gametogenesis. The expression of Cg-mip4 is mainly associated with the larval development. The Cg-mip
transcript shared by the Cg-MIP1, 2 and 3, is mainly expressed in visceral ganglia but its expression was also
observed in the gonads of mature males. This pattern suggested the key roles of IRPs in the control of sexual
reproduction in molluscan species.

}, author = {Ma{\"e}va Cherif{\textendash}Feildel and Clothilde Berthelin and B{\'e}atrice Adeline and Guillaume Rivi{\`e}re and Pascal Favrel and Kristell Kellner-Cousin} } @article {8135, title = {Morphological and molecular criteria allow the identification of putative germ stem cells in a lophotrochozoan, the Pacific oyster Crassostrea gigas}, journal = {Histochemistry and Cell Biology}, volume = {151}, year = {2019}, month = {Jan-05-2019}, pages = {419 - 433}, issn = {0948-6143}, doi = {10.1007/s00418-018-1740-3}, url = {http://link.springer.com/10.1007/s00418-018-1740-3}, author = {Cherif-Feildel, Ma{\"e}va and Kellner, Kristell and Goux, Didier and Elie, Nicolas and Adeline, B{\'e}atrice and Lelong, Christophe and Clothilde Berthelin} } @article {5238, title = {Differential protein expression during sperm maturation and capacitation in an hermaphroditic bivalve, Pecten maximus (Linnaeus, 1758)}, journal = {J. of Molluscan Studies}, volume = {82}, year = {2016}, month = {11/2016}, pages = {575-584}, type = {research}, abstract = {

In order to investigate the mechanisms of final maturation and capacitation of spermatozoa in Pecten maximus, we used a 2D proteomic approach coupled with MALDI-TOF/TOF mass spectrometry (MS) and bioinformatics search against the Pecten database, to set up a reference map of the proteome of spawned spermatozoa, and identified 133 proteins on the basis of the EST database. These proteins are mainly involved in energy production, ion and electron transport (44\%), cell movement (22\%) and developmental processes (10\%). Comparison between proteomes of spermatozoa collected before and after transit through the genital ducts of P. maximus led to the identification of differentially expressed proteins. Most of them are associated with energy metabolism (aconitate hydratase, malate dehydrogenase, glyceraldehyde-3-phosphate dehydrogenase), indicating important modifications of energy production during transit in gonoducts, potentially linked with acquisition of sperm motility. Three proteins involved in cell movement (Tektin-2, tubulin and microtubule-associated protein RP/EB family member 3) were down-regulated in spermatozoa stripped from the gonad. 40S ribosomal protein SA, involved in maturation of 40S ribosomal subunits, was also found to be down-regulated in spermatozoa obtained by induced spawning, suggesting reduction of the effi- ciency of RNA translation, a characteristic of late spermatozoon differentiation. These results confirm that maturation processes of P. maximus spermatozoa during transit through the gonoduct involve RNA translation, energy metabolism and structural proteins implicated in cell movement. Spermatozoa maturation processes clearly differ between P. maximus and gonochoric or alternately hermaphroditic bivalves, potentially in relation to reproductive strategies: the final maturation of the spermatozoon along the genital tract probably contributes to reduction of autofertilization in this simultaneously hermaphroditic species

}, doi = {doi:10.1093/mollus/eyw028}, author = {Boonmee, A and Clothilde Berthelin and Kingtong, S and Pauletto, M and Bernay, B and Suquet, M and Pascal Sourdaine and Kellner K} }