Differences in sperm ultrastructure between Mytilus chilensis and Mytilus galloprovincialis (Bivalvia, Mytilidae): could be used as a taxonomic trait?
The sperm ultrastructure has been used to solve several systematic and phylogenetic problems in marine invertebrates. The sperm ultrastructure of the Chilean mussel Mytilus chilensis and Mytilus galloprovincialis corresponds to the ect-aquasperm type. Sperm from both taxa measured 55-60 μm between h...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Escuela de Ciencias del Mar, Facultad de Recursos Naturales, Pontificia Universidad Católica de Valparaíso
2014-03-01
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| Series: | Latin American Journal of Aquatic Research |
| Subjects: | |
| Online Access: | http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2014000100014&lng=en&tlng=en |
| _version_ | 1819299401099640832 |
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| author | Pablo A Oyarzún Jorge E Toro Orlando Garrido Carolina Briones Ricardo Guiñez |
| author_facet | Pablo A Oyarzún Jorge E Toro Orlando Garrido Carolina Briones Ricardo Guiñez |
| author_sort | Pablo A Oyarzún |
| collection | DOAJ |
| description | The sperm ultrastructure has been used to solve several systematic and phylogenetic problems in marine invertebrates. The sperm ultrastructure of the Chilean mussel Mytilus chilensis and Mytilus galloprovincialis corresponds to the ect-aquasperm type. Sperm from both taxa measured 55-60 μm between head (acrosome + nucleus), midpiece (only 5 mitochondria) and the flagellum which in its end piece has a smaller diameter tail. The differences between both taxa are clearly shown, in the structure of the acrosome and nucleus. Therefore, according to our results and those reported in the literature, we indicate that Chilean native mussel sperm is different from other species of the Mytilus complex (M. trossulus, M. galloprovincialis and M. edulis). These differences in sperm ultrastructure found in M. chilensis, are another trait that can be used to validate the taxonomic status of the species. Differences in sperm morphology are related with reproductive isolation, and probably will be useful to understand future data on speciation. Finally, we discussed the finding that Mytilus galloprovincialis sperm from Chile have an acrosome notoriously smaller than those reported for specimens from Europe and Africa, though they have a great similarity with specimens from Japan, as reported in the literature. |
| first_indexed | 2024-12-24T05:45:12Z |
| format | Article |
| id | doaj.art-8d92639dabc1452c98428cfbb76f8fed |
| institution | Directory Open Access Journal |
| issn | 0718-560X |
| language | English |
| last_indexed | 2024-12-24T05:45:12Z |
| publishDate | 2014-03-01 |
| publisher | Escuela de Ciencias del Mar, Facultad de Recursos Naturales, Pontificia Universidad Católica de Valparaíso |
| record_format | Article |
| series | Latin American Journal of Aquatic Research |
| spelling | doaj.art-8d92639dabc1452c98428cfbb76f8fed2022-12-21T17:12:37ZengEscuela de Ciencias del Mar, Facultad de Recursos Naturales, Pontificia Universidad Católica de ValparaísoLatin American Journal of Aquatic Research0718-560X2014-03-01421172179S0718-560X2014000100014Differences in sperm ultrastructure between Mytilus chilensis and Mytilus galloprovincialis (Bivalvia, Mytilidae): could be used as a taxonomic trait?Pablo A Oyarzún0Jorge E Toro1Orlando Garrido2Carolina Briones3Ricardo Guiñez4Universidad Austral de ChileUniversidad Austral de ChileUniversidad Austral de ChileUniversidad de AntofagastaUniversidad de AntofagastaThe sperm ultrastructure has been used to solve several systematic and phylogenetic problems in marine invertebrates. The sperm ultrastructure of the Chilean mussel Mytilus chilensis and Mytilus galloprovincialis corresponds to the ect-aquasperm type. Sperm from both taxa measured 55-60 μm between head (acrosome + nucleus), midpiece (only 5 mitochondria) and the flagellum which in its end piece has a smaller diameter tail. The differences between both taxa are clearly shown, in the structure of the acrosome and nucleus. Therefore, according to our results and those reported in the literature, we indicate that Chilean native mussel sperm is different from other species of the Mytilus complex (M. trossulus, M. galloprovincialis and M. edulis). These differences in sperm ultrastructure found in M. chilensis, are another trait that can be used to validate the taxonomic status of the species. Differences in sperm morphology are related with reproductive isolation, and probably will be useful to understand future data on speciation. Finally, we discussed the finding that Mytilus galloprovincialis sperm from Chile have an acrosome notoriously smaller than those reported for specimens from Europe and Africa, though they have a great similarity with specimens from Japan, as reported in the literature.http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2014000100014&lng=en&tlng=enmejillonesMytilus chilensisMytilus galloprovincialisespermatozoidesacuespermataxonomía |
| spellingShingle | Pablo A Oyarzún Jorge E Toro Orlando Garrido Carolina Briones Ricardo Guiñez Differences in sperm ultrastructure between Mytilus chilensis and Mytilus galloprovincialis (Bivalvia, Mytilidae): could be used as a taxonomic trait? Latin American Journal of Aquatic Research mejillones Mytilus chilensis Mytilus galloprovincialis espermatozoides acuesperma taxonomía |
| title | Differences in sperm ultrastructure between Mytilus chilensis and Mytilus galloprovincialis (Bivalvia, Mytilidae): could be used as a taxonomic trait? |
| title_full | Differences in sperm ultrastructure between Mytilus chilensis and Mytilus galloprovincialis (Bivalvia, Mytilidae): could be used as a taxonomic trait? |
| title_fullStr | Differences in sperm ultrastructure between Mytilus chilensis and Mytilus galloprovincialis (Bivalvia, Mytilidae): could be used as a taxonomic trait? |
| title_full_unstemmed | Differences in sperm ultrastructure between Mytilus chilensis and Mytilus galloprovincialis (Bivalvia, Mytilidae): could be used as a taxonomic trait? |
| title_short | Differences in sperm ultrastructure between Mytilus chilensis and Mytilus galloprovincialis (Bivalvia, Mytilidae): could be used as a taxonomic trait? |
| title_sort | differences in sperm ultrastructure between mytilus chilensis and mytilus galloprovincialis bivalvia mytilidae could be used as a taxonomic trait |
| topic | mejillones Mytilus chilensis Mytilus galloprovincialis espermatozoides acuesperma taxonomía |
| url | http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2014000100014&lng=en&tlng=en |
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