A novel spermatozoan ultrastructure in the shrimp<i>Hippolyte obliquimanus</i>Dana, 1852 (Decapoda: Caridea: Hippolytidae)

Terossi, Mariana; Tudge, Christopher C.; Greco, Laura S. López; Mantelatto, Fernando L.

doi:10.1080/07924259.2011.631040

Cited by 7 publications

(7 citation statements)

References 19 publications

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“…This is in contrast with previous studies in other caridean species, such as Palaemon elegans (Pochon‐Masson, ), M. rosenbergii (Lynn & Clark, ; Poljaroen et al., ), Palaemon serratus (Papathanassiou & King, ), Pandalopsis japonica (Kim et al., ), and M. australiense (Butcher & Fielder, ), in which the nuclear membrane is described as absent. Terossi, Tudge, López Greco, and Mantelatto () also observed in Hippolyte obliquimanus a disrupted and discontinuous nuclear membrane. This nuclear membrane difference could be due to the presence of a true rounded nuclear structure in N. davidi , while in the previous species the nucleus occupies almost the entire area beneath the spike.…”

Section: Discussionmentioning

confidence: 74%

“…Terossi, Tudge, López Greco, and Mantelatto (2012) also observed in Hippolyte obliquimanus a disrupted and discontinuous nuclear membrane. This nuclear membrane difference could be due to the presence of a true rounded nuclear structure in N. davidi, while in the previous species the nucleus occupies almost the entire area beneath the spike.…”

Section: Discussionmentioning

confidence: 87%

“…However, in the spermatozoon of P. elegans, it has been suggested that the spike corresponds to the acrosome (Pochon‐Masson, ), and the spike was not PAS‐positive. Similarly, in spermatozoa of H. obliquimanus (Terossi et al., ) and M. rosenbergii (Lynn & Clark, , ) the spike is assumed to be part of the acrosome, and the spike is not PAS‐positive. According to Koehler (), spermatozoa of P. paludosus show intranuclear PAS‐positive vesicles that may function as an acrosome.…”

Section: Discussionmentioning

confidence: 99%

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New insights in the male anatomy, spermatophore formation, and sperm structure in Atyidae: The red cherry shrimp Neocaridina davidi

Tomás

Bento

Mutti

et al. 2019

Invertebrate Biology

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This study aims to analyze the functional anatomy of the male reproductive system in Neocaridina davidi, a very popular ornamental species of caridean shrimp. Mature males were cold‐anaesthetized and their reproductive systems were dissected for histological and histochemical analysis, while the spermatozoa and spermatophore wall ultrastructure were analyzed under transmission electron microscopy. The male reproductive system consisted of two coiled testes, which were continuous with the vasa deferentia. Testes were positioned on the dorsal side of the cephalothorax above the hepatopancreas, and comprised seminiferous tubules where spermatogenesis occurred. Each vas deferens (VD) was a long tube dorsolaterally positioned with respect to the hepatopancreas, and increased in diameter at the distal end. Three regions could be recognized in the VD: proximal, middle, and distal. The proximal region had a cylindrical epithelium with secretory cells. The middle region (or typhlosole) had a dorsal fold (or typhlosole) with a thick columnar epithelium and high secretory activity. The spermatophore was a continuous cord with three acellular layers, which were mainly characterized by the presence of neutral glycoconjugates and proteins. The sperm morphology was distinct from the inverted cup‐shaped spermatozoa observed in the majority of caridean shrimps. The spermatozoa in specimens of N. davidi were spherical in shape, with a cross‐striated, single, short spike, and arranged in clusters of three or four sperm cells. The composition of the spermatophore, and the arrangement and form of the spermatozoa, seem to be unique in comparison to other species of Caridea.

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Section: Discussionmentioning

confidence: 74%

Section: Discussionmentioning

confidence: 87%

Section: Discussionmentioning

confidence: 99%

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New insights in the male anatomy, spermatophore formation, and sperm structure in Atyidae: The red cherry shrimp Neocaridina davidi

Tomás

Bento

Mutti

et al. 2019

Invertebrate Biology

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“…niezabitowskii ). In the first group the sperm shows numerous posterior nuclear arms, perhaps unique within Decapoda 31 , 32 , whilst in the latter clade no posterior nuclear arms are known, this being as the pattern in the majority of caridean shrimps 33 , 34 .…”

Section: Discussionmentioning

confidence: 95%

Global biogeography, cryptic species and systematic issues in the shrimp genus Hippolyte Leach, 1814 (Decapoda: Caridea: Hippolytidae) by multimarker analyses

Terossi

Grave

Mantelatto

2017

Sci Rep

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Hippolyte is a genus of small bodied marine shrimps, with a global distribution. Here, we studied the phylogenetic and biogeographic relationships amongst the species of this genus with two mitochondrial and two nuclear markers, using Bayesian Inference, Maximum Likelihood, genetic divergence, molecular clock and S-DIVA. In addition, the Indo-West Pacific genus Alcyonohippolyte was included. Based on sequences from 57 specimens of 27 species, we recovered a robust biogeographic scenario that shows the Indo-West Pacific as the probable ancestral area of the genus Hippolyte, which emerged in the Paleocene, followed by dispersal in three general directions: (1) South Pacific, (2) eastern Atlantic and Mediterranean Sea and (3) Americas, the latter with a primary colonization in the eastern Pacific followed by a radiation into the western Atlantic. Our analysis reveals that the species of the H. ventricosa group do not constitute a monophyletic group and Alcyonohippolyte does not constitute a reciprocally monophyletic group to Hippolyte, with both genera herein synonimised. The relationships and systematic status of several transisthmian and Atlantic species are clarified.

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“…Spermiotaxonomy has become a very efficient tool in the resolution of taxonomic issues involving phylogenetic relationships among decapod crustaceans (Jamieson 1991(Jamieson , 1994Medina et al 1994a, b;Medina 1995a;Tudge 2009). Some earlier phylogenetic proposals were based only on the morphology of sperm (Brown et al 1977;Felgenhauer and Abele 1991;Jamieson 1991Jamieson , 1994Bauer and Holt 1998;Jamieson and Tudge 2000;Tudge et al 2001;Benetti et al 2008;Tudge 2009;Klaus et al 2009;Terossi et al 2012). Advances in the phylogenetic classification of decapods can be obtained by matching sperm analysis with molecular data.…”

Section: Introductionmentioning

confidence: 99%

Integrative analysis of sperm ultrastructure and molecular genetics supports the phylogenetic positioning of the sympatric rock shrimps Sicyonia dorsalis and Sicyonia typica (Decapoda, Sicyoniidae)

et al. 2015

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We describe the sperm ultrastructure of two sympatric rock shrimps, Sicyonia dorsalis and Sicyonia typica, and compare them in a molecular context to provide new insight into the sperm morphology of the Sicyoniidae. To accomplish this, the vasa deferentia of males of both species were fixed and prepared for transmission electron microscopy and light microscopy cytochemistry. Sperm of S. typica exhibit an oval main body and a short subacrosomal complex region with convoluted membrane pouches, a crystalline lattice and a well-developed large granule anterior to the spike, as previously described for Sicyonia carinata. In contrast, the ultrastructure of S. dorsalis sperm features an elongated complex subacrosomal region above the main body and a flat nucleus, and small cytoplasmic membrane vesicles are not present. Although S. dorsalis sperm are similar to those of Sicyonia ingentis, the spike of S. dorsalis is shorter than S. ingentis. A phylogenetic tree was built by Bayesian inference based on 19 sequences of 16S rDNA of some representatives of the genus. Our findings show that sperm analysis of these shrimps reflects their phylogenetic history and that such analysis is very useful for taxonomic studies. Species with corresponding sperm ultrastructure are in the same clade of the proposed phylogeny. Moreover, it is possible to detect different groups within the genus based on the presence of at least two distinct morphological patterns of ultrastructure in the spermatozoa of Sicyonia.

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A novel spermatozoan ultrastructure in the shrimpHippolyte obliquimanusDana, 1852 (Decapoda: Caridea: Hippolytidae)

Cited by 7 publications

References 19 publications

New insights in the male anatomy, spermatophore formation, and sperm structure in Atyidae: The red cherry shrimp Neocaridina davidi

New insights in the male anatomy, spermatophore formation, and sperm structure in Atyidae: The red cherry shrimp Neocaridina davidi

Global biogeography, cryptic species and systematic issues in the shrimp genus Hippolyte Leach, 1814 (Decapoda: Caridea: Hippolytidae) by multimarker analyses

Integrative analysis of sperm ultrastructure and molecular genetics supports the phylogenetic positioning of the sympatric rock shrimps Sicyonia dorsalis and Sicyonia typica (Decapoda, Sicyoniidae)

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