Comparative analysis of the male reproductive accessory glands of batsNoctilio albiventris(Noctilionidae) andRhynchonycteris naso(Emballonuridae)
| Autor: | Sebastião Roberto Taboga, Cintia C. I. Puga, Mateus R. Beguelini, Eliana Morielle-Versute |
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| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
0301 basic medicine Pathology medicine.medical_specialty Holocrine Anatomy Atypical epithelium Biology biology.organism_classification 010603 evolutionary biology 01 natural sciences Urethral gland Noctilio albiventris 03 medical and health sciences Bulbourethral gland 030104 developmental biology medicine.anatomical_structure Urethra stomatognathic system Simple columnar epithelium Rhynchonycteris naso medicine Animal Science and Zoology Developmental Biology |
| Zdroj: | Journal of Morphology. 277:1459-1468 |
| ISSN: | 0362-2525 |
| Popis: | In eutherian mammals, the male reproductive accessory glands (RAGs) comprise the prostate, bulbourethral glands, ampullary glands, and the seminal vesicles. Their composition, anatomy and function vary widely between species. This study aimed to characterize histologically and compare the RAGs of bats. The RAGs of Noctilio albiventris (Noctilionidae) and Rhynchonycteris naso (Emballonuridae) were studied using anatomical and histological methods, and were reconstructed three dimensionally. The RAGs of N. albiventris and R. naso are composed of a compact glandular complex that surrounds the urethra and a pair of bulbourethral glands, which are extra-abdominally located in the inguinal region. In both species, the glandular complex is composed of two well-defined prostatic regions (ventral and dorsal). The ventral region showed an atypical epithelium (holocrine), where no obvious cellular limits were observed, and PAS-positive secretion. The dorsal region had a pseudostratified cuboidal epithelium, with basal and secretory cells, and PAS-negative secretion. Noctilio albiventris also had urethral glands (Littre glands) surrounding the urethra, however, R. naso had only muscles. Both species had bulbourethral glands, with simple columnar epithelium and PAS-positive secretion. In conclusion, the RAGs of N. albiventris and R. naso comprised a pair of bulbourethral glands and an intra-abdominal complex, composed of a prostate with two different regions (ventral and dorsal), while the ampullary glands and seminal vesicles were missing in both species. This morphology was more closely related between N. albiventris and R. naso, and to species of the family Phyllostomidae than to families Molossidae and Vespertilionidae. J. Morphol. 277:1459-1468, 2016. © 2016 Wiley Periodicals, Inc. |
| Databáze: | OpenAIRE |
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