Characterization of Cdc2 kinase in the red claw crayfish (Cherax quadricarinatus): Evidence for its role in regulating oogenesis

Gene ◽  
2013 ◽  
Vol 515 (2) ◽  
pp. 258-265 ◽  
Author(s):  
Lan-mei Wang ◽  
Di Zuo ◽  
Wei-wei Lv ◽  
Dan-li Wang ◽  
A-jing Liu ◽  
...  
Aquaculture ◽  
2015 ◽  
Vol 441 ◽  
pp. 1-7 ◽  
Author(s):  
Libo Hou ◽  
Xiaoqian Liu ◽  
Yunting Jing ◽  
Jia Zhang ◽  
Zhengfeng Ding ◽  
...  

2009 ◽  
Vol 1187 ◽  
Author(s):  
Gilles Luquet ◽  
Nathalie Le Roy ◽  
Isabelle Zanella-Cléon ◽  
Michel Becchi ◽  
Sergio Bucarey ◽  
...  

AbstractLike the lobsters, some terrestrial crabs and other crayfishes, the Australian red claw crayfish, Cherax quadricarinatus, elaborates in its stomach wall calcium storage structures called gastroliths. For understanding the cyclic elaboration and stabilization of these amorphous calcified structures, we studied the organic matrix (OM) of these paired biomineralizations. After decalcification with acetic acid, we analysed the proteinaceous components of an acetic acid-insoluble fraction by two-dimensional electrophoresis. Nine spots were digested by trpsin and the tryptic peptides were sequenced by nanoLC-nanoESI-MS/MS mass spectrometry. About 100 peptidic sequences were compared to sequences previously registered in the databases. Seven of the partially sequenced organic matrix polypeptides are probably new proteins. Another one corresponds to the previously sequenced protein, GAP65, from Cherax quadricarinatus and the last one, which migrates in electrophoresis at around 25 kDa, presents strong homology with the crustacyanin-A2 subunit of Homarus gammarus.


Aquaculture ◽  
2010 ◽  
Vol 304 (1-4) ◽  
pp. 34-41 ◽  
Author(s):  
Liane Stumpf ◽  
Natalia S. Calvo ◽  
Silvia Pietrokovsky ◽  
Laura S. López Greco

2010 ◽  
Vol 60 (2) ◽  
pp. 195-208 ◽  
Author(s):  
Laura Susana López Greco ◽  
Fernanda Jimena Vazquez

AbstractThe differentiation of the male reproductive system, the copulatory structures, "red patch" and onset of sexual maturity were studied in Cherax quadricarinatus. For this characterization 353 males were observed, dissected and processed for histological analysis. Three developmental stages were identified. At stage I the testes are two parallel cords with a few lobes or acinii, connected medially by a short thin bridge (X-shape) and the vasa deferentia are straight transparent cords. In the second stage, more lobulated testes present an H-shape and the vas deferens begins to differentiate into three distinct regions: proximal, medial and distal. In the last stage testes are two parallel cords tending to fuse along their entire length and become a single structure. From this stage, the development of the "red patch" occurs and spermatophore formation is observed in the vas deferens giving it white colour. These primary and secondary sexual characters could indicate the onset of sexual maturity. The morphology of the copulatory structure is lobular at stage I and it differentiates into an elongated structure during stage II. This study shows that in C. quadricarinatus the differentiation of primary and secondary sexual characters of males starts simultaneously and very early in development (0.09-0.10g achieved nearly 1 month old) and that acquisition of sexual maturity is also an early event (6g achieved nearly 3 month old). The compared features within Astacidea and Decapoda and the possible applications in the analysis of phylogenetic relationships between different taxa are discussed.


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