Aspectos ultraestruturais do espermatozóide de Natica marochiensish (Gmelin) (MOllusca, Gastropoda) do litoral norte do Brasil

Matos, Edílson; Casal, Graça; Azevedo, Carlos

doi:10.1590/s0101-81751997000300009

Cited by 2 publications

(2 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Similar to other diogenid species, the spermatophore morphology of L. loxochelis is consistent with the pedunculate spermatophore type common in the Coenobitidae and Diogenidae and even some species of Paguridae (Tudge, 1991(Tudge, , 1999aTudge and Jamieson, 1991 ). This morphology is most like the Clibanarius genus (Mouchet, 1930(Mouchet, , 1931Hamon, 1942;Tudge, 1991) especially C. corallinus, C. misanthropus, and C. virescens, but less so like the larger, stalk-less spermatophores of C. longitarsus and C. vittatus (Uma and Subramoniam, 1984;Matos et a!., 1993;Hess and Bauer, 2002). Similarities occur in the overall morphology but also in the small posterior pointing projections on the underside of the ampulla.…”

Section: Discussionsupporting

confidence: 73%

Spermatophore morphology of the endemic hermit crabLoxopagurus loxochelis(Anomura, Diogenidae) from the southwestern Atlantic—Brazil and Argentina

Scelzo

Mantelatto

Tudge

2004

Invertebrate Reproduction & Development

View full text Add to dashboard Cite

The spermatophore morphology of the endemic and monotypic hermit crab Loxopagurus loxochelis from the southwestern Atlantic is described. The spermatophores show similarities with those described for other members of the family Diogenidae (especially the genus Clibanarius), and are composed of three major regions: a sperm-filled, circular flat ampulla; a columnar stalk; and a pedestal. The morphology and size of the spermatophore of L. loxochelis, along with a distinguishable constriction or neck that penetrates almost halfway into the base of the ampulla, are characteristic of this species. The size of the spermatophore is related to hermit crab size. Direct relationships were found between the spermatophore ampulla width, total length, and peduncle length with carapace length of the hermit crab. These morphological characteristics and size of the spermatophore of L. loxochelis are species-specific, distinguishing them from other members of the family Diogenidae, and can be used to infer phylogenetic relationships among them.

show abstract

Section: Discussionsupporting

confidence: 73%

Spermatophore morphology of the endemic hermit crabLoxopagurus loxochelis(Anomura, Diogenidae) from the southwestern Atlantic—Brazil and Argentina

Scelzo

Mantelatto

Tudge

2004

Invertebrate Reproduction & Development

View full text Add to dashboard Cite

show abstract

“…Modified‐type sperm are an adaptation to internal fertilization: the sperm head tends to be miniaturized and elongated to enhance motile ability; the presence of a mitochondrial sheath and a glycogen particle sheath results in a more stable source of energy (Jiao et al., 2004). The modified‐type sperm structures have been studied in several species of shellfish including Littorina sitkana (Caenogastropoda, Littorinimorpha (originally belonging to (Mesogastropoda)) (Buckland‐Nicks, 1973; Gofas, 2016), Natica marochiensish (Matos et al., 1997), B. formosae formosae (Neogastropoda, Muricoidae) (Ke & Li, 1992), Rapana venosa (Hou et al., 1990).…”

Section: Discussionmentioning

confidence: 99%

Spermatozoan morphology of the snails Babylonia lutosa , Babylonia areolata from parental lines of populations in Hainan and Thailand and hybrid lines

Wang

Shen

et al. 2020

Aquac. Res.

View full text Add to dashboard Cite

Sperm morphology provides an abundant source of potentially informative characters for gastropod taxonomy. In the present study, this character was used to offer additional information concerning the genus Babylonia (Mollusca, Gastropoda), the most promising economic marine gastropods of the present century. Light and transmission electron microscopy was used to study the ultrastructure of spermatozoa in five groups of Babylonia, including B. areolata populations from Hainan, China, from Thailand, and the reciprocal hybrid offspring of these two populations and B. lutosa. Principal component analysis was conducted to examine morphological differences of spermatozoa. The results showed that morphology can contribute to the classification of the two species B. areolata and B. lutosa. The reciprocal hybrid offspring of the two B. areolata varieties exhibited ultrastructure of spermatozoa similar to that of their male parents, and each showed greater similarity to the male parent in the fine structural details. This study aimed to compare the ultrastructure of sperm in five groups of Babylonia and to compare the differences between the parents and the hybrids to provide basic information for genetic studies of Babylonia.

show abstract

Aspectos ultraestruturais do espermatozóide de Natica marochiensish (Gmelin) (MOllusca, Gastropoda) do litoral norte do Brasil

Cited by 2 publications

References 8 publications

Spermatophore morphology of the endemic hermit crabLoxopagurus loxochelis(Anomura, Diogenidae) from the southwestern Atlantic—Brazil and Argentina

Spermatophore morphology of the endemic hermit crabLoxopagurus loxochelis(Anomura, Diogenidae) from the southwestern Atlantic—Brazil and Argentina

Spermatozoan morphology of the snails Babylonia lutosa , Babylonia areolata from parental lines of populations in Hainan and Thailand and hybrid lines

Contact Info

Product

Resources

About