Sperm ultrastructure in representatives of six bivalve families from Peter the Great Bay, Sea of Japan

Дроздов, А. Л.; Sharina, Svetlana N.; Tyurin, S. A.

doi:10.1134/s1063074009030079

Cited by 22 publications

(21 citation statements)

References 10 publications

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“…A comparable example to that shown here for Gryphaeidae can be seen in the Anomiidae, in which the spermatozoa of Anomia trigonopsis Hutton 1877 (as Anomia descripta Iredale 1936) show a spheroidal nucleus with a short anterior invagination (Popham ) in contrast to those of Pododesmus macroschisma ( Deshayes 1839) which show a barrel‐shaped nucleus with a long, narrow anterior invagination (housing the axial rod) (Drozdov et al. ). It would be interesting to determine the exact circumstances of gamete interaction in the three examined gryphaeids as it is known that the environment of fertilization, especially the environment of sperm release, can have a marked influence on sperm features, most notably the length and shape of the nucleus and midpiece (Franzén , ).…”

Section: Discussionsupporting

confidence: 67%

“…; Drozdov et al. ). However, the consistent presence of five mitochondria in the midpiece of H. hyotis is important as it once again sets this species aside from all other investigated Ostreoidea.…”

Section: Discussionmentioning

confidence: 98%

“…; Drozdov et al. ; C. virginica ( Gmelin 1791): Galtsoff & Philpott ; Daniels et al. ; Eckelbarger & Davis ; C. angulata ( Lamarck 1819): Gutierrez et al.…”

unclassified

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Sperm ultrastructure in honeycomb (foam) oysters (Mollusca, Bivalvia, Gryphaeidae, Pycnodontinae): comparison with other Ostreoidea and taxonomic implications

Healy

Mikkelsen

Bieler

2015

Invertebrate Biology

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Sperm ultrastructural features of the honeycomb (foam) oysters Hyotissa hyotis, H. sinensis, and H. mcgintyi (Gryphaeidae) are described and compared with other Ostreoidea and more generally with other pteriomorphian Bivalvia. Spermatozoa of H. sinensis and H. mcgintyi (the type species of Parahyotissa HARRY 1985) exhibit (1) a broad, lowconical acrosomal vesicle;(2) subacrosomal material (very electron-dense granular material and an almost electron-lucent axial rod); (3) a spheroidal nucleus with a wide anterior invagination (filled with subacrosomal components); (4) a midpiece composed of four spherical mitochondria surrounding a pair of centrioles (rootlet associated with proximal centriole); and (5) a flagellum. Sperm of Hyotissa hyotis (type species of Hyotissa STENZEL 1971) differ markedly from those of H. sinensis and H. mcgintyi, in having (1) a conical acrosomal vesicle showing coarse granular texture anteriorly; (2) a very electron-dense axial rod; (3) a barrel-shaped nucleus with a long, narrow anterior invagination (filled with both subacrosomal components) and a basal invagination partly housing the proximal centriole; and (4) five midpiece mitochondria and no proximal centriolar rootlet. Results indicate that H. sinensis should be relocated to another genus, possibly a revised genus Parahyotissa, and also show that the sperm of H. sinensis and H. mcgintyi show many similarities to those of the Ostreidae, with the exception that the 'axial rod' component of the subacrosomal material is less electron-dense than the surrounding substance (more dense in Ostreidae, as in H. hyotis). No family defining sperm features of the Gryphaeidae can be identified.Invertebrate Biology 134(2): 136-150.

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Section: Discussionsupporting

confidence: 67%

Section: Discussionmentioning

confidence: 98%

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Sperm ultrastructure in honeycomb (foam) oysters (Mollusca, Bivalvia, Gryphaeidae, Pycnodontinae): comparison with other Ostreoidea and taxonomic implications

Healy

Mikkelsen

Bieler

2015

Invertebrate Biology

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“…Their acrosome is relatively large; the nucleus is from oval to elongated, oblong; the midpiece of the sperma tozoon has two interperpendicular centrioles sur rounded by several spherical mitochondria [3,7,13,36,37]. The spermatozoa of articulate brachiopods have characteristic traits that bring them close to the sperm cells of deuterostomes that possess external insemination: a relatively small acrosome, the nucleus usually spherical or oval, and one ring mitochondrion in the midpiece (like in echinoderms and bony fish).…”

Section: Discussionmentioning

confidence: 99%

The spermatozoon structure of Coptothyris adamsi (Davidson, 1871) (brachiopoda, Rhynchonelliformea) and analysis of the 18S and 28S rRNA sequences

et al. 2015

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The position of brachiopods in the animal system remains controversial, with morphological data often being inconsistent with the results of molecular phylogenetic analysis. In this study, we investigated the structure of the spermatozoa and determined the combined sequences of the 18S and 28S rRNA genes of the articulate brachiopod Coptothyris adamsi (Davidson, 1871). The spermatozoa of C. adamsi are similar to those of other articulate brachiopods. Two types of sperm structure can be distinguished within Brachiopoda: the first type is characteristic of the articulate brachiopods (Rhynchonelliformea), the second type, the inar ticulate brachiopods (Linguliformea and Craniiformea). Rhynchonelliformea spermatozoa are similar to those of the deuterostome animals, in particular to the sperm of the Echinodermata, whereas Linguliformea and Craniiformea spermatozoa are similar to the typical sperm of the Trochozoa, such as annelids and mol lusks. Molecular phylogenetic analysis has shown that the brachiopods and phoronids form two monophyl etic groups within the group Brachiozoa, where phoronids are united in a separate basal clade, while brachi opods are divided into two clades.

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“…One of these tools concerns the ultrastructural analysis of male gametes. Size and shape of the nucleus, acrosome, midpiece and periacrosomal material are specific morphological characteristics for orders, families and even species (Franzén 1983;Healy 1995a;Healy et al 2001;Erkan and Sousa 2002;Birkhead et al 2007;Drozdov et al 2009;Introíni et al 2009). …”

Section: Introductionmentioning

confidence: 99%

Spermatozoan ultrastructure and mitochondrial gene sequence ofCaryocorbula caribaea(d'Orbigny, 1853) (Corbulidae: Bivalvia), a species with plasticity in shell morphology

et al. 2015

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Systematics of Corbulidae supported by anatomical and conchological studies remains confused and controversial because of the considerable phenotypic plasticity of their shells. Ultrastructural spermatozoan study and molecular analyses have been performed to contribute valuable information, which could be used in taxonomy. Electron microscopy was used to analyse sperm cells from specimens of Caryocorbula (Gardner, 1926) exhibiting shell differences. The spermatozoon was of the aquasperm type, showing short acrosome, barrel-shaped nucleus, midpiece composed of four spherical mitochondria and simple flagellum. In addition, about 860 base pairs of mitochondrial large ribosomal subunit (16S rRNA) were sequenced from each individual. The consistent similarity shared by spermatozoa and DNA sequences from all studied specimens indicated that they belonged to one coherent unit, Caryocorbula caribaea (d'Orbigny, 1853), despite the extraordinary plasticity exhibited by their shells.

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Sperm ultrastructure in representatives of six bivalve families from Peter the Great Bay, Sea of Japan

Cited by 22 publications

References 10 publications

Sperm ultrastructure in honeycomb (foam) oysters (Mollusca, Bivalvia, Gryphaeidae, Pycnodontinae): comparison with other Ostreoidea and taxonomic implications

Sperm ultrastructure in honeycomb (foam) oysters (Mollusca, Bivalvia, Gryphaeidae, Pycnodontinae): comparison with other Ostreoidea and taxonomic implications

The spermatozoon structure of Coptothyris adamsi (Davidson, 1871) (brachiopoda, Rhynchonelliformea) and analysis of the 18S and 28S rRNA sequences

Spermatozoan ultrastructure and mitochondrial gene sequence ofCaryocorbula caribaea(d'Orbigny, 1853) (Corbulidae: Bivalvia), a species with plasticity in shell morphology

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