Ever more complex: a new type of organization of reproductive organs in female Dorippe sinica Chen, 1980 (Decapoda: Brachyura: Dorippidae)

Hayer, Sarah; Köhnk, Stephanie; Boretius, Susann; Brandis, Dirk

doi:10.1016/j.zool.2016.04.006

Cited by 14 publications

(56 citation statements)

References 33 publications

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“…We therefore agree with Hayer et al. () that the SR is presumably not the location where fertilization takes place. Hayer et al.…”

Section: Discussionsupporting

confidence: 93%

“…Hayer et al. () recently described the female reproductive system of D. sinica and presented results and conclusions that conform partially to the histological findings of our study, and also revealed the need of a careful re‐evaluation (see below).…”

Section: Discussionsupporting

confidence: 88%

“…Similar valves are also shown in the images presented for D. sinica by Hayer et al. (:figs. F, B), but they were not identified or described as such, maybe due to a different orientation of histological sections.…”

Section: Discussionsupporting

confidence: 83%

“…Hayer et al. () concluded that fertilization in dorippids occurs in the vulva, while our results suggest that the first contact between oocytes and spermatozoa takes place in the vagina. This discrepancy is partially due to differences in nomenclature.…”

Section: Discussioncontrasting

confidence: 46%

“…A corresponding process has previously been described in Ebalia tumefacta ( Montagu 1808) and D. sinica and referred to as “sinew” by Hayer et al. (, ). A recent study of the coxal gonopore in the podotreme brachyuran group Homoloidea has revealed surprising correspondences with the eubrachyuran concave vagina with respect to a muscular operculum and the crescent shape of the genital opening (Becker & Scholtz ).…”

Section: Discussionmentioning

confidence: 85%

See 4 more Smart Citations

Morphology of the female reproductive system of three dorippid crabs (Crustacea: Decapoda: Brachyura: Dorippidae) and the role of accessory cuticle structures associated with seminal receptacles

Vehof

Scholtz

Becker

2017

Invertebrate Biology

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The reproductive systems of crabs reveal characters of considerable importance for the understanding of brachyuran phylogeny and evolution. The Dorippoidea show several plesiomorphic characters within Eubrachyura and similarities to podotreme crabs. Hence, they are often considered as an early diverging lineage, sometimes even as the sister group to all remaining eubrachyurans. Due to their role as prime candidates for putative plesiomorphic characters of the reproductive system of the Eubrachyura, we compared the morphology of the vaginae, seminal receptacles, and ovaries of three dorippid species using histological methods, micro‐computed tomography, and 3‐D reconstructions. Despite the putative phylogenetic position of dorippids, the female reproductive system shows features that are regarded as derived characters in eubrachyurans, including a concave vagina and a ventral‐type seminal receptacle. In contrast to other eubrachyurans, the oviduct does not enter the seminal receptacle directly but through specific cuticular valves. The female reproductive systems of Dorippe sinica and Dorippe quadridens are remarkable in further aspects. The seminal receptacles of both species are completely cuticle‐lined and have accessory sperm storage structures, the bursae. Our findings on the morphology of the female reproductive system of dorippids with its unique combination of basal, derived, and new characters challenges the prevailing hypothesis on the evolution of sperm storage organs in Eubrachyura.

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“…We therefore agree with Hayer et al. () that the SR is presumably not the location where fertilization takes place. Hayer et al.…”

Section: Discussionsupporting

confidence: 93%

Section: Discussionsupporting

confidence: 88%

Section: Discussionsupporting

confidence: 83%

Section: Discussioncontrasting

confidence: 46%

Section: Discussionmentioning

confidence: 85%

See 3 more Smart Citations

Morphology of the female reproductive system of three dorippid crabs (Crustacea: Decapoda: Brachyura: Dorippidae) and the role of accessory cuticle structures associated with seminal receptacles

Vehof

Scholtz

Becker

2017

Invertebrate Biology

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From copula to fertilization: The reproduction of primitive crabHypoconcha parasitica(Linnaeus, 1763) (Podotremata: Dromiidae)

Bento

Greco

Mantelatto

et al. 2022

The Anatomical Record

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This study describes the mating behavior of Hypoconcha parasitica under laboratory conditions highlighting the spermathecal morphology and focusing on the seminal fluid storage and release of spermatozoa. The pairs were kept in aquaria where the mating behavior was recorded and described. The spermathecae of the female were analyzed using scanning electron microscopy, X‐ray micro‐CT, histology, and histochemistry. No pre‐ or post‐copulatory mate guarding was observed in H. parasitica. The sperm transfer occurred with each pair maintaining the protection shield (bivalve shell) on their dorsum. The pair of spermathecae is covered exclusively by the cuticle, following the Podotremata pattern. Many muscle fiber bundles are attached to the cuticular wall facing toward the cephalothorax cavity, especially covering the lateral and slightly dorso‐anterior region toward the apodeme of Sternite 7. The spermathecal organization indicates that the process of sperm release during fertilization occurs through muscular action exerted by the female on the wall of the chamber. Thus, the musculature distribution in Hypoconchinae distinguishes them from described for other Podotremata such as Homolidae, which shows the musculature associated with the spermathecae aperture. Like the Homolidae, the first pleopod in H. parasitica seems to take part in the transfer/ movement of spermatozoa and oocytes between the sternum and abdomen, which forms a temporary chamber where fertilization occurs. In conclusion, the spermathecal morphology and associated structures bring new insights to the mechanisms involved in the sperm storage and fertilization of primitive crabs and how the Dromiidae spermatheca perform a new pattern among the poorly studied Podotremata.

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Functional morphology of the female reproductive system of a crab with highly extensible seminal receptacles and extreme sperm storage capacity

Farias

Spivak

Luppi

2017

Journal of Morphology

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We studied the functional morphology of the female reproductive system of the purple stone crab Danielethus crenulatus. The most remarkable feature is the relative storage capacity and extensibility of the seminal receptacles. These receptacles are a pair of simple sacs that lack internal structures dividing the internal lumen. Differences in seminal receptacle size and contents are accompanied by conspicuous changes in receptacle lining at a tissue level. Full seminal receptacles contain discrete sperm masses formed by hardened fluid and densely packed spermatophores. Different sperm masses are likely from different mates and their stratified disposition within the seminal receptacles is compatible with rival sperm displacement and last sperm precedence. Additionally, the anatomical structure of the vulva and vagina suggest active female control over copula. We discuss our results in the general context of sperm storage in brachyurans and the implications for the mating system of this species.

show abstract

Ever more complex: a new type of organization of reproductive organs in female Dorippe sinica Chen, 1980 (Decapoda: Brachyura: Dorippidae)

Cited by 14 publications

References 33 publications

Morphology of the female reproductive system of three dorippid crabs (Crustacea: Decapoda: Brachyura: Dorippidae) and the role of accessory cuticle structures associated with seminal receptacles

Morphology of the female reproductive system of three dorippid crabs (Crustacea: Decapoda: Brachyura: Dorippidae) and the role of accessory cuticle structures associated with seminal receptacles

From copula to fertilization: The reproduction of primitive crabHypoconcha parasitica(Linnaeus, 1763) (Podotremata: Dromiidae)

Functional morphology of the female reproductive system of a crab with highly extensible seminal receptacles and extreme sperm storage capacity

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