NDLI: Grounds for genus Aurelia subdivision: Two jellyfish populations differ in mesoglein amino acid sequences

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Grounds for genus Aurelia subdivision: Two jellyfish populations differ in mesoglein amino acid sequences

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Grounds for genus Aurelia subdivision: Two jellyfish populations differ in mesoglein amino acid sequences

Content Provider	Springer Nature Link
Author	Kotovaa, A. V. Podgornayaa, O. I. Adonina, L. S.
Copyright Year	2015
Abstract	The jellyfish Aurelia aurita (Scyphozoa, Cnidaria) is regarded as a cosmopolitan species with a worldwide distribution in most seas, from the poles to tropics. Cnidaria possess two tissue layers: endoderm (gastroderm) and ectoderm separated by mesoglea, which are typically thick for jellyfish. A main component of mesoglea is the novel protein “mesoglein” that we have already described earlier. The protein has a conservative ZP (Zona Pellucida) domain. In the current work, we compare mesoglein and its gene from three jellyfish habitats (the White Sea (WS), Black Sea (BS), and Sea of Japan (SJ)). The pattern of mesoglea protein bands after SDS-PAGE is similar in all samples. Nevertheless, SJ mesoglein M$_{r}$ is 53–55 kDa, while WS and BS mesoglein M$_{r}$ is 47 kDa. Antibodies raised against WSA mesoglein recognize only mesogleins with M$_{r}$ 47 kDa, but not 53–55 kDa, in both immunoblot and immunocytochemistry. Mesogleal cells and elastic fibrils are intensely stained in the mesoglea from both WSA and BSA, but not from SJA.The possibility of gene divergence was tested by PCR with primers specific for the WS mesoglein gene. PCR products of expected length were obtained on a polyA-cDNA template from mesogleal cells of WS and BS jellyfish, but not with cDNA of SJ jellyfish. Our results evidence that there are two different species in the genus Aurelia: aurita inhabits the White and Black Seas, while Aurelia sp. inhabits the Sea of Japan. This is in agreement with the results of comparisons previously done using other methods of molecular biology.
Starting Page	244
Ending Page	249
Page Count	6
File Format	PDF
ISSN	1990519X
Journal	Cell and Tissue Biology
Volume Number	9
Issue Number	3
e-ISSN	19905203
Language	English
Publisher	Pleiades Publishing
Publisher Date	2015-06-19
Publisher Place	Moscow
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Cnidaria Aurelia aurita extracellular matrix ZP domain proteins evolution Cell Biology
Content Type	Text
Resource Type	Article
Subject	Cell Biology

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