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The purplish bifurcate mussel Mytilisepta virgata gene expression atlas reveals a remarkable tissue functional specialization
Gerdol, M.; Fujii, Y.; Hasan, I.; Koike, T.; Shimojo, S.; Spazzali, F.; Yamamoto, K.; Ozeki, Y.; Pallavicini, A.; Fujita, H. (2017). The purplish bifurcate mussel Mytilisepta virgata gene expression atlas reveals a remarkable tissue functional specialization. BMC Genom. 18(1): 590. https://dx.doi.org/10.1186/s12864-017-4012-z
In: BMC Genomics. BioMed Central: London. e-ISSN 1471-2164
|   |
| Trefwoorden |
Bivalvia [WoRMS]
Marien/Kust |
| Author keywords |
Mussel Transcriptome RNA-seq Lectins Phylogenomics Bivalve Mollusk |
| Auteurs | | Top |
- Gerdol, M.
- Fujii, Y.
- Hasan, I.
- Koike, T.
|
- Shimojo, S.
- Spazzali, F.
- Yamamoto, K.
|
- Ozeki, Y.
- Pallavicini, A.
- Fujita, H.
|
| Abstract |
BackgroundMytilisepta virgata is a marine mussel commonly found along the coasts of Japan. Although this species has been the subject of occasional studies concerning its ecological role, growth and reproduction, it has been so far almost completely neglected from a genetic and molecular point of view. In the present study we present a high quality de novo assembled transcriptome of the Japanese purplish mussel, which represents the first publicly available collection of expressed sequences for this species.ResultsThe assembled transcriptome comprises almost 50,000 contigs, with a N50 statistics of ~1 kilobase and a high estimated completeness based on the rate of BUSCOs identified, standing as one of the most exhaustive sequence resources available for mytiloid bivalves to date. Overall this data, accompanied by gene expression profiles from gills, digestive gland, mantle rim, foot and posterior adductor muscle, presents an accurate snapshot of the great functional specialization of these five tissues in adult musselsConclusionsWe highlight that one of the most striking features of the M. virgata transcriptome is the high abundance and diversification of lectin-like transcripts, which pertain to different gene families and appear to be expressed in particular in the digestive gland and in the gills. Therefore, these two tissues might be selected as preferential targets for the isolation of molecules with interesting carbohydrate-binding properties.In addition, by molecular phylogenomics, we provide solid evidence in support of the classification of M. virgata within the Brachidontinae subfamily. This result is in agreement with the previously proposed hypothesis that the morphological features traditionally used to group Mytilisepta spp. and Septifer spp. within the same clade are inappropriate due to homoplasy. |
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