Musculature of the penial complex: A new criterion in unravelling the phylogeny of Hygrophila (Gastropoda: Pulmonata)

Soldatenko, E.V.; Petrov, A.A.

doi:10.1002/jmor.20960

Cited by 9 publications

(19 citation statements)

References 42 publications

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“…Histological studies of the vagina, vaginal pouch and penial complex of the planorbid Biomphalaria, besides being little comprehensive, are restricted to few taxa; namely B. alexandrina (ABDEL-MALEK, 1954b), B. glabrata (PARAENSE;DESLANDES, 1955;PAN, 1958;PETROV, 2019), B. intermedia (PARAENSE, 1988), B. kuhniana (PARAENSE, 1988) and B. straminea (PARAENSE, 1988).…”

Section: Discussionmentioning

confidence: 99%

“…In these five taxa, the muscular layer of the penis sheath is represented by an inner layer of circular fibers and an outer layer of longitudinal fibers. The comparison of the musculature of the penis sheath of the three taxa studied with planorbids of the genera Anisus, Bathyomphalus, Choanomphalus, Gyraulus, Helisoma, Planorbella e Segmentina (ABDEL-MALEK, 1954a;PETROV, 2012;2019) (PARAENSE, 1988) and B. kuhniana (PARAENSE, 1988) which have two muscular layers and from B. straminea (PARAENSE, 1988) which has three muscular layers. And also of the planorbids of the genera Anisus, Bathyomphalus, Choanomphalus, Gyraulus, Helisoma, Planorbella e Segmentina (SOLDATENKO; PETROV, 2009;2012), of the acroloxid of the genus Acroloxus (SOLDATENLO; PETROV, 2019), of the lymneid of the genus Radix (SOLDATENKO; PETROV, 2019) and of the fisid of the genus Physella (SOLDATENKO; PETROV, 2019), which have two to three layers.…”

Section: Discussionmentioning

confidence: 99%

“…And also of the planorbids of the genera Anisus, Bathyomphalus, Choanomphalus, Gyraulus, Helisoma, Planorbella e Segmentina (SOLDATENKO; PETROV, 2009;2012), of the acroloxid of the genus Acroloxus (SOLDATENLO; PETROV, 2019), of the lymneid of the genus Radix (SOLDATENKO; PETROV, 2019) and of the fisid of the genus Physella (SOLDATENKO; PETROV, 2019), which have two to three layers. Soldatenko and Petrov (2019) Studies related to the histological aspects of the penial complex and vagina region of other Biomphalaria species are necessary in order to confirm the taxonomic importance of the characters in determining the taxa belonging to the genus.…”

Section: Discussionmentioning

confidence: 99%

“…Histological details of the musculature of reproductive organs in Planorbidae, available in the consulted bibliography, refer to the genera Anisus Studer, 1820, Bathyomphalus Charpentier, 1837, Choanomphalus Gerstfeldt, 1859, Gyraulus Agassiz, 1837, Helisoma Swainson, 1840, Planorbella Haldeman, 1842, Planorbis Muller, 1773and Segmentina Fleming, 1818(ABDEL-MALEK, 19521954a;PETROV, 2009;2012;2019;SHATROV, 2013). However, the histological studies on the reproductive organs of Biomphalaria are not very comprehensive and are restricted to the Biomphalaria alexandrina (Ehrenberg, 1831) (ABDEL-MALEK, 1954b), Biomphalaria glabrata (Say, 1818) (PARAENSE; DESLANDES, 1955;PAN, 1958;PETROV, 2019), Biomphalaria intermedia (Paraense & Deslandes, 1962) (PARAENSE, 1988), Biomphalaria kuhniana (Clessin, 1883) (PARAENSE, 1988) and Biomphalaria straminea (Dunker, 1848) (PARAENSE, 1988). Microanatomical studies of the penial complex and vagina region are important for the taxonomic delimitation of B.…”

Section: Introductionmentioning

confidence: 99%

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Histological aspects of the penial complex and vagina of taxa of the Biomphalaria tenagophila complex (Mollusca: Planorbidae)

Tavares¹,

Ohlweiler²

2022

Biotemas

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Histological studies were carried out with 49 specimens; 18 Biomphalaria tenagophila guaibensis, 19 B. t. tenagophila and 12 B. occidentalis, collected in 10 municipalities in the states of São Paulo and Rio Grande do Sul, Brazil. The study considered histological aspects of the vagina, vaginal pouch and penial complex. In this study, we describe, for the first time, the histological features of the vagina, vaginal pouch and penial complex of B. t. tenagophila, B. t. guaibensis and B. occidentalis. The lining epithelial tissue and muscular tissue of the vagina, vaginal pouch and penial complex show a similar pattern in B. t. tenagophila, B. t. guaibensis and B. occidentalis, except for the intermediate muscular layer of the prepuce, which distinguishes B. t. guaibensis from the other two taxa. Histological studies on the penial complex and vagina region of other Biomphalaria species are necessary to confirm the taxonomic value of these two regions, in order to contribute to the group’s systematics.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Histological aspects of the penial complex and vagina of taxa of the Biomphalaria tenagophila complex (Mollusca: Planorbidae)

Tavares¹,

Ohlweiler²

2022

Biotemas

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“…The microanatomy of the muscle system of the Hygrophila, a molluscan clade comprising freshwater lung-bearing snails, has recently been examined in different representatives of this group (Soldatenko and Petrov 2012, 2016, 2019 showing that the organization of the male copulatory musculature can characterize several major hygrophilan taxa and provide a set of familial and tribal-rank synapomorphies. The copulatory apparatus, or the penial complex, of the Hygrophila begins proximally at the opening of the vas deferens into the penis sheath.…”

Section: Introductionmentioning

confidence: 99%

Muscle system of the penial complex in three species of Hygrophila (Gastropoda: Pulmonata)

Soldatenko

Petrov

2022

Proceedings ZIN

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The Hygrophila, a group comprising freshwater lung-bearing gastropods, have a complex copulatory apparatus, whose musculature has recently been shown to provide a number of phylogenetically informative characters that appear to concur with the results of molecular phylogenetic analyses. The number of hygrophilan species for which the male copulatory musculature is known, however, is still relatively small. We examined the muscle arrangement in the penial complex (penis and penis sheath) of three species of Hygrophila: Aplexa hypnorum (Linnaeus, 1758) (fam. Physidae), Kolhymorbis bogatovi Zatravkin et Moskvicheva, 1985 (fam. Planorbidae, tribe Segmentinini), and Planorbarius corneus (Linnaeus, 1758) (fam. Planorbidae, tribe Helisomatini) to explore whether the organization of the male copulatory musculature in these species is consistent with the previously proposed phylogenetic hypotheses. In A. hypnorum, the primarily glandular penis sheath has a three-layered musculature with outer and inner circular and intermediate longitudinal layers. The tubular penis also has a three-layered musculature, with the same sequence of muscle fibers as in the penis sheath. In K. bogatovi, the sequence of muscle layers in the penis sheath is essentially the same as in A. hypnorum. Penial musculature is also arranged in three layers, but the intermediate layer consists of small radial, rather than longitudinal fibers and the inner and outer layers are circular. In P. corneus, the boundaries between muscle layers in both penis and penis sheath are somewhat indistinct, but the circular muscles tend to lie close to their outer and inner walls, while the longitudinal fibers are concentrated in the interior. The comparison with other hygrophilan species, in which the copulatory musculature has been previously studied, shows that the male copulatory musculature of K. bogatovi is consistent in arrangement with that of other representatives of Segmentinini and that the phylogenetic lineage leading to P. corneus has probably diverged before the clade Planorbini + Segmentinini. The musculature of the penial complex of A. hypnorum is generally similar to that of another physid, Physella acuta (Draparnaud, 1805), but the penis sheath of P. acuta lacks an outer layer of circular muscle fibers, which may be explained by reduction.

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One-health approach on the future application of snails: a focus on snail-transmitted parasitic diseases

Pathak,

Luitel,

Utaaker

et al. 2023

Parasitol Res

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Snails are fascinating molluscs with unique morphological and physiological adaptive features to cope with various environments. They have traditionally been utilized as food and feed sources in many regions of the world. The future exploitation of alternative nutrient sources, like snails, is likely to increase further. Snails, however, also serve as an intermediate host for several zoonotic parasites. A category of parasitic infections, known as snail-transmitted parasitic diseases (STPDs), is harmful to humans and animals and is mainly driven by various trematodes, cestodes, and nematodes. The environment plays a crucial role in transmitting these parasites, as suitable habitats and conditions can facilitate their growth and proliferation in snails. In light of diverse environmental settings and biologically categorized snail species, this review evaluates the dynamics of significant STPDs of zoological importance. Additionally, possible diagnostic approaches for the prevention of STPDs are highlighted. One-health measures must be considered when employing snails as an alternative food or feed source to ensure the safety of snail-based products and prevent any adverse effects on humans, animals, and the environment.

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Musculature of the penial complex: A new criterion in unravelling the phylogeny of Hygrophila (Gastropoda: Pulmonata)

Cited by 9 publications

References 42 publications

Histological aspects of the penial complex and vagina of taxa of the Biomphalaria tenagophila complex (Mollusca: Planorbidae)

Histological aspects of the penial complex and vagina of taxa of the Biomphalaria tenagophila complex (Mollusca: Planorbidae)

Muscle system of the penial complex in three species of Hygrophila (Gastropoda: Pulmonata)

One-health approach on the future application of snails: a focus on snail-transmitted parasitic diseases

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